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Advances in CO2 recycle to alcohols and ethers through hydrogenation Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-03-13 Alberto Boretti
This paper addresses the urgent challenge of CO2 emissions and the need for sustainable energy sources. It emphasizes CO2 hydrogenation as a promising solution for large-scale long-term energy storage, converting CO2 into valuable fuels using green hydrogen generated from renewable sources. The study concentrates on exploring pathways leading to oxygenated compounds, such as alcohols or ethers, for
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CO2 dynamic mass balance of low permeability reservoir based on “four regions” Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-02-13 Jian Wang, Xiaofan Chen, Qingzhen Fan, Rujie Zhang, Ping Yue, Jian Li
In order to limit the increase in global average temperature to 1.5°C, it is necessary to reduce carbon dioxide (CO2) emissions by 45% by 2030. CO2 capture, utilization and storage (CCUS) is one of the effective ways to reduce CO2 emissions. Geological storage of CO2 provides a solution with the lowest economic cost and the fastest effect for reducing CO2 emissions. This article proposes a CO2 storage
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Kinetic analysis of CO2 hydrate formation in the aqueous solutions of transition metal chlorides Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-02-13 Fa-Ping Liu, Ai-Rong Li, Cheng Wang, Yu-Ling Ma
CO2 hydrate technology can be applied to seawater desalination. However, the kinetics of CO2 hydrate formation were inhibited in the aqueous solution with inorganic salts, and the kinetic mechanism of CO2 hydrate formation for inorganic salts with different metal cations and anions was still unclear. In this work, CO2 hydrate nucleation and growth were studied in aqueous solutions of metal chlorides
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Physicochemical synergistic adsorption of CO2 by PEI-impregnated hierarchical porous polymers Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-02-13 Lanxin Li, Zhibo Luo, Wei Zou, Shengke Liang, Hong Wang, Chen Zhang
Amine-functionalized porous polymers have been considered as a prominent chemical adsorption material for carbon capture and storage (CCS) process, because of their large adsorption capacity and high selectivity. By comparison, the low energy-consumption for desorption and high recyclability are the advantages of the physical adsorption approach. In this work, an amine-functionalized hierarchical porous
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Experimental investigating of the effect of CO2 injection parameters on asphaltene precipitation and formation damage in live oil Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-02-12 Komeil Ghahramani Shojaei, Jamshid Moghadasi
With the increasing consumption of oil in the world and increasing production of oil from oil reservoirs, the reservoir pressure starts to decrease. On the other side, the use of oil leads to an increase in carbon dioxide production in the environment and causes global warming.
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Long-term CO2 sequestration mechanisms and influence of injection mode in Zhujiang Formation of Pearl River Mouth Basin Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-01-31 Tao Xuan, Xiaomin Cao, Qi Li, Fangfang Li, Liang Xu
In this paper, the mechanisms of long-term CO2 sequestration and the effects of injection modes (including injection temperature, injection rate and injection cycle) in Zhujiang Formation characterized by high porosity and permeability were investigated using the numerical simulation method. Simulation results showed that more than 88% of the injected CO2 would exist in a supercritical state during
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Experimental study on the outburst potential energy caused by added water under stepwise depressurization Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2024-01-05 Xinjian Li, Xiangjun Chen, Lin Wang, Haoyang Shi, Tongyong Yu
The research on the mechanism of coal and gas outburst is still in the hypothesis stage, and exploration of the outburst mechanism fro m an energy perspective often focuses on the calculation of coal rock elastic energy and gas expansion energy. There are some studies on elastic energy and gas expansion energy of coal rock caused by added water during outburst, although hydr aulic measures not only
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Thermophysical evolution during different decompression of N2-containing S-CO2 pipelines Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-28 Kai Yang, Lei Chen, Yanwei Hu, Xingqing Yan, Shuai Yu, Jianliang Yu, Shaoyun Chen
Pipelines transporting impure supercritical carbon dioxide in the carbon capture, utilization, and storage (CCUS) chain exhibit varying decompression characteristics due to engineered emissions or accidental leakage, resulting in diverse temperature drops and heat transfer mechanisms in the media and pipe walls. Therefore, studying heat transfer characteristics during slow and instantaneous decompression
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Performance evaluation of CO2 capture on using potential adsorbents in a CI engine exhaust–An experimental investigation Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-28 Maniarasu Ravi, Sushil Kumar Rathore, Murugan Sivalingam
Anthropogenic activites release greenhouse gas emissions into our atmosphere, especially carbon dioxide (CO2). This abundant accumulation of CO2 generates numerous problems like global warming and climate change. However, research has been conducted to capture CO2 from significant single-point emitters like compression ignition (CI) engines, backup generators, and distributed power production plants
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Effects of non-condensable CCUS impurities (CH4, O2, Ar and N2) on the saturation properties (bubble points) of CO2-rich binary systems at low temperatures (228.15–273.15 K) Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-26 Franklin Okoro, Antonin Chapoy, Pezhman Ahmadi, Rod Burgass
The present work investigated the effects of some non-condensable impurities (i.e., N2, O2, CH4, and Ar) on the phase behaviour of CO2-rich systems at low temperature conditions (228.15–273.15 K). The study focused on bubble point measurements of CO2-rich systems using the isothermal (pressure–volume) method at different mole fractions of CO2 (99.5%–95%). The obtained experimental data were used to
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Effects of molybdenum addition to activated carbon supported Ni-based catalysts for CO2 methanation Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-26 Stephen Okiemute Akpasi, Yusuf Makarfi Isa, Thembisile Patience Mahlangu, Sammy Lewis Kiambi
Recently, CO2 methanation has become a technique that aims to reduce anthropogenic CO2 emissions by converting CO2 captured from stationary and mobile sources and H2 produced from renewable sources into CH4. Due to their excellent performance-to-cost ratio, Ni-based catalysts were frequently used in such conversions. The main drawbacks, however, are that Ni has the propensity to aggregate and deposit
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Single and multi-fractal dimension variation of tight sandstone by using centrifuge T2 spectral curve Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-24 Shuailong Feng, Mingyang Li, Junjian Zhang, Guangwei Xu, Veerle Vandeginste, Pengfei Zhang, Wei Ju
Pore-fracture structure distribution heterogeneity (PFSH) affects dynamic variation of porosity-permeability of tight sandstone reservoirs, then restricting gas production performance. A fractal model by low-field nuclear magnetic resonance technology (LF-NMR) has been used in the quantitative characterization of PFSH. Among some literature, PFSH was studied by using a saturated T2 spectrum. However
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Halide ions doped SrMnO3 for chemical looping oxidative dehydrogenation of ethane Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-18 Zifan Xing, Haitao Chen, Min Mao, Xiaocen Liang, Da Song, Yang Li, Tao Long, Xiaoli Chen, Fang He
The chemical looping oxidative dehydrogenation (CL-ODH) of ethane represents a highly effective approach for converting ethane into the value-added product ethylene. This investigation focused on the synthesis of SrMnO3 and its halide ions doped derivatives (SrMnO3Cl and SrMnO3Br) through the sol-gel method. The performance of these perovskites, employed as oxygen carriers in CL-ODH of ethane, was
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A phased workflow to define permit-ready locations for large volume CO2 injection and storage Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-19 Ramon H. Trevino, Susan D. Hovorka, Dallas B. Dunlap, Richard C. Larson, Tucker F. Hentz, Seyyed A. Hosseini, Shuvajit Bhattacharya, Michael V. DeAngelo
To-date, only two UIC Class VI permits have been issued by the US Environmental Protection Agency. We illustrate a four-phase workflow to first identify regional storage resources and then down-select sites to yield permit-ready locations that can accept and store large volumes of CO2. Specific permit requirements should guide objectives and define deliverables of respective workflow phases. In the
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Predictive modeling of energy-related greenhouse gas emissions in Ghana towards a net-zero future Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-07 Yen Adams Sokama-Neuyam, Samuel Mawulikem Amezah, Stephen Adjei, Caspar Daniel Adenutsi, Samuel Erzuah, Jonathan Atuquaye Quaye, William Ampomah, Kwame Sarkodie
Ghana is determined to reduce greenhouse gas (GHG) emissions by at least 15% by 2030 and attain net-zero emissions by 2070. However, like many developing countries, Ghana must utilize its limited resources effectively to actualize its climate goals. Currently, climate policies in the country are not driven by emission data, which has important implications on effective utilization of resources and
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Corrosion performance of carbon/stainless steel in amine-based solvents under different conditions for CO2 chemical absorption process Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-06 Yuwei Wang, Mengxiang Fang, Tao Wang, Jun Gao, Yan Huang, Shuifei Li, Xiaozheng Lu, Yuhang Sun, Feng Zhang
The overall corrosion behavior of S304 stainless steel and A3 carbon steel in 30 wt.% MEA (monoethanolamine) and AMP/MEA (2-amino-2-methyl-1-propanol / monoethanolamine) blended amine solutions at 40–100°C was investigated. The characterization analysis of the corroded material surfaces was performed, and the changes in the properties of both solvents after long-term immersion corrosion were measured
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Enhanced solar-light driven CO2 conversion using Pt-doped graphitic carbon nitride photocatalyst Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-06 Thi Huong Pham, Minh Viet Nguyen, Thi Thu Hien Chu, Sung Hoon Jung, Taeyoung Kim
The increasing levels of carbon dioxide (CO2) in our atmosphere demand innovative and efficient methods for its reduction. In this context, we present an advanced solar-driven photocatalyst, Pt-doped graphitic carbon nitride (Pt/g-C3N4), specifically engineered for enhanced photoreduction of CO2. Our findings highlight the dual advantage of Pt/g-C3N4: enhanced visible light absorption and electron-hole
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Signal propagation from portable active seismic source (PASS) to km-scale borehole DAS for continuous monitoring of CO2 storage site Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-04 Takeshi Tsuji, Eiichi Arakawa, Hitoshi Tsukahara, Fumitoshi Murakami, Naoshi Aoki, Susumu Abe, Takuya Miura
We have developed a portable active seismic source (PASS) to monitor CO2 storage reservoirs at a depth of approximately 1 km. Despite its small size, stacking the signals generated by the PASS improves the signal-to-noise ratio of the seismometer data far from the source. The smaller size and lower cost of the PASS enables its permanent deployment in many locations to continuously monitor CO2 storage
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Two-phase flow behavior in CO2 geological storage considering spatial parameter heterogeneity Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-12-01 Yiyan Zhong, Qi Li, Liang Xu, Yiping Wen, Yunlu Hou, Wenbin Gao
Saline aquifer rocks exhibit significant spatial randomness due to geological sedimentation processes. To address the issue of the heterogeneity of rock formations in numerical simulations, it is common practice to homogenize rock layers with similar lithologies. However, the acceptability of the errors generated during homogenized computations is a major concern and should be investigated. Therefore
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Experimental study on the flow characteristics of supercritical CO2 in reservoir sandstones from the Ordos Basin, China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-11-29 Qianlin Zhu, Dongbao Chen, Shijian Lu, Shaojin Jiang
Understanding the flow characteristics of supercritical CO2 in dry sandstones or those with low water content provides crucial information on the flow behavior in near-wellbore zone. We conducted supercritical CO2 core flooding experiments using sandstone cores extracted from potential CO2 reservoirs in the Ordos Basin, China. During the experiments, we reduced the water content of saturated cores
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Developing a roadmap for carbon capture, and storage in Oklahoma by assessing the viability of stacked storage Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-11-09 Marcos W. Miranda, Jonathan D. Ogland-Hand, Jeffrey M. Bielicki, Rouzbeh G. Moghanloo, Jamal DaneshFar, Richard S. Middleton
The Intergovernmental Panel on Climate Change concludes that CO2 capture and storage (CCS) is critical for climate-stabilizing energy transitions. In CCS, captured CO2 is sequestered in saline aquifers within sedimentary basins. The CO2 storage capacity and the rate of injection are functions of the geology of the saline aquifer, which is uncertain. To minimize impacts of this uncertainty, CCS projects
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Optimization of calcium carbide residue utilization for producing high-quality calcium carbonate Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-10-28 Yuhang Yang, Wenxiu Li, Zhiwei Xun, Zhenwei Yi, Tao Wang, Zitao Yu, Yan Huang, Yongzheng Gu
In light of the current situation where the utilization of calcium carbide slag yields low profits but holds significant potential for reducing carbon emissions, ammonium acetate was employed to leach calcium carbide slag. It also played a crucial role in regulating the products of indirect carbon dioxide carbonation when mixed with glycine and lye. Ammonium acetate's significance underscores its dual
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Handling heat-stable salts in post-combustion CO2 capture: A detailed survey Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-09-11 Wilfred Emori, Inime I. Udoh, Okpo O. Ekerenam, Alexander I. Ikeuba, IniIbehe N. Etim, Chigoziri N. Njoku, Enobong F. Daniel, Demian I. Njoku, Paul C. Uzoma, Sharafadeen K. Kolawole, Olajire S. Olanrele
The generation of heat-stable salts (HSSs) in alkanolamine solutions for CO2 capture processes, which is adapted for power plant technologies, exists irrespective of the class of amine solution used for the capture process. Their presence do not only trigger decrements in the CO2 absorption capacities of the solvents and contribute to further alkanolamine degradation, but also result in foaming and
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CO2-Induced alterations due to thermal maturation in shale: Implications for CO2 utilization and storage Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-09-06 Chioma Onwumelu, Oladoyin Kolawole, Imene Bouchakour, Ogochukwu Ozotta, Stephan Nordeng, Moones Alamooti
Shales have low to ultra-low porosity and permeability, which makes them an attractive candidate for CO2 utilization during CO2-enhanced oil recovery (CO2-EOR) or for geologic CO2 storage (GCS). Shale are source rocks, and thus, there is a continuous induced diagenetic process that can alter their properties as they reaches maturity at greater in situ temperature. However, there are significant knowledge
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A method to classify coal pore system by using cumulative amplitude ratio and its dynamic variation Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-07-26 Mingjun Zou, Ningbo Cai, Keying Wang, Zibin Ding, Linlin Yao
As coal pore development is decisive for choosing the engineering site and predicting the CO2 storage capacity, this paper provides a new method to define the double T2 cutoff values by using cumulative amplitude ratio measured by nuclear magnetic resonance measurements, classifies the coal pore systems, and analyzes the influences on cumulative amplitude ratio. The following cognitions are achieved
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Time-lapse VSP integration and calibration of subsurface stress field utilizing machine learning approaches: A case study of the morrow B formation, FWU Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-07-25 William Ampomah, Samuel Appiah Acheampong, Marcia McMillan, Tom Bratton, Robert Will, Lianjie Huang, George El-Kaseeh, Don Lee
This study aims to develop a methodology for calibrating subsurface stress changes through time-lapse vertical seismic profiling (VSP) integration. The selected study site is a region around the injector well located within Farnsworth field unit (FWU), where there is an ongoing CO2-enhanced oil recovery (EOR) operation. In our study, a site-specific rock physics model was created from extensive geological
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Impact of aquifer properties on the extent and timeline of CO2 trapping Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-07-22 Chidera O. Iloejesi, Shuo Zhang, Lauren E. Beckingham
Geologic CO2 sequestration in porous saline aquifers is a promising approach to reducing atmospheric concentrations of CO2. Reactive transport simulations provide the opportunity to analyze which factors influence geochemical reactivity in the reservoir, understand those most important for promoting CO2 trapping, and assess individual sites. Field-scale aquifer characterization is time and resource
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A comprehensive review of the influence of particle size and pore distribution on the kinetics of CO2 hydrate formation in porous media Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-07-20 Xuemin Zhang, Pengyu Li, Qing Yuan, Jinping Li, Tao Shan, Qingbai Wu, Yingmei Wang
As an essential greenhouse gas, CO2 is the leading cause of global warming and environmental problems. An efficient strategy to lower CO2 emissions is the hydrate-based method of CO2 geological storage. The stability and formation process of hydrate is the premise and foundation of the hydrate method of CO2 geological storage. However, the formation rule of CO2 hydrate has a significant impact on the
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Recent progress and emerging strategies for carbon peak and carbon neutrality in China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-07-08 Lan Liu, Xin Wang, Zegao Wang
As the global climate crisis intensifies, ecosystems, human society and economic activities are significantly affected. Countries around the world have successively put forward the goal of carbon neutrality or zero carbon. At the 75th session of the United Nations General Assembly, the Chinese government explicitly proposed making efforts to reach the goal of Carbon Peak (peak of carbon emissions before
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Design of a packed bed chemical looping (unmixed) combustion reactor for the application of heating liquid: A theoretical study Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-07-04 Amina Faizal, Amol Deshpande
A packed bed reactor (PBR)-based chemical looping combustion (CLC), also referred to as unmixed combustion (UMC), was reported as an alternative to fire in the literature. In this process, the oxygen carriers undergo oxidation and reduction reactions in alternate cycles using air and fuel as the reactive gases, respectively. The energy generated in these reactions can radially be transferred for applications
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Downdraft energy tower for negative emissions: Analysis on methane removal and other co-benefits Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-06-30 Tao Tao, Yuyin Wang, Tingzhen Ming, Liwen Mu, Renaud de Richter, Wei Li
The downdraft energy tower is proposed in research as a new technology for green electricity in recent years. In this work, it is analyzed as an emerging greenhouse gas removal technology against climate change that provides multiple co-benefits for the environment, in addition to green electricity. Compared to other negative emission technologies, DET might be able to remove atmospheric methane (CH4)
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The effect of H2S content on acid gas migration and storage in shale reservoir by numerical simulation Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-06-27 Xiaoyan Zhang, Ning Liu, Qi Li, Pingzhi Chen, Xiaochen Wei
Acid gas injection is one of the most effective strategies to deal with waste gas generated during the development of sour oil and gas reservoirs. This study numerically investigates the effect of H2S content on the acid gas migration and storage in shale reservoirs. The results indicate that the variations of acid gas density, viscosity, solubility, relative permeability, and capillary pressure caused
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Potential greenhouse gas emissions and reduction from municipal solid waste management in Phnom Penh municipality Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-06-09 Dek Vimean Pheakdey, Nguyen Van Quan, Tran Dang Xuan
This study evaluates greenhouse gas (GHG) emissions and reduction potential from municipal solid waste management (MSWM) following the IPCC 2006 guidelines. Under different MSWM scenarios of Phnom Penh municipality, this study quantifies GHG emissions from transportation, open burning, composting, recycling, anaerobic digestion (AD), incineration, and landfilling municipal solid waste. The study also
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Estimating nitrous oxide emissions based on TN discharge from municipal wastewater treatment plants: A case study for the city of Xiamen, China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-06-06 Ruolin Bai, Lei Jin, Haiyan Fu, Mazhan Zhuang, Yi Wei
Mitigation of nitrous oxide (N2O) emissions is of primary importance to meet the targets of reducing carbon footprints of wastewater treatment plants (WWTPs). This paper takes the N2O discharged from a case study of wastewater treatment plants as the main research object, and then develops a novel algorithm, which can accurately estimate the amount of N2O release, and then applies it to the local wastewater
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The efficient CO2 fixation catalyzed by K-doped g-C3N4 catalyst for synthesizing benzimidazoles at atmospheric pressure Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-05-31 Xuewei Tu, Luping Zhang, Yutong Chen, Shouxin Zhu, Can Sun, Jiali Jin, Min Liu, Hui Zheng
The conversion of CO2 into valuable chemicals to reduce greenhouse gas emissions has received extensive attention. Converting CO2 into pharmaceutical intermediates via graphitic carbon nitride (CN) at atmospheric pressure is a challenge. In this work, a series of novel graphitic carbon nitrides (K-CN) catalysts with different doping ratios of K were synthesized by post-treatment of CN with KOH as a
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Effective direct chemical looping coal combustion using bimetallic Ti-supported Fe2O3-MnO2 oxygen carriers Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-05-08 Ewelina Ksepko, Rafal Lysowski
In this paper five bimetallic Fe2O3-MnO2 oxygen carriers supported on TiO2 were evaluated for direct hard coal combustion via chemical looping path. The oxygen carriers were obtained via mechanical mixing and high-temperature calcination. The samples contained varying amounts of Fe2O3 (20–50 wt.%) and MnO2 (65–30 wt.%) but an identical amount of inert material (15 wt.%). Both the impact of the oxygen
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Enhancement of iron-based oxygen carriers through alloying with tungsten oxide for chemical looping applications including water splitting Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-05-06 Jose Juan Morales Corona, Kyra Sedransk Campbell, Paul S. Fennell
Chemical looping applications offer a variety of options to decarbonise different industrial sectors, such as iron and steel and hydrogen production. Chemical looping with water splitting (CLWS) is a chemical looping technology, which produces H2 while simultaneously capturing CO2. The selection of oxygen carriers (OCs) available to be used in CLWS is finite, due to the thermodynamic limitations of
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A quantitative risk assessment approach for developing contingency plans at a geologic carbon storage site Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-05-01 Nate Mitchell, Greg Lackey, Brandon Schwartz, Brian Strazisar, Robert Dilmore
Geologic carbon storage (GCS) is an increasingly important technology for reducing carbon dioxide (CO2) emissions to the atmosphere. The leakage risks associated with GCS are an environmental and human health concern, however, and site operators must develop contingency plans that thoroughly consider leakage risks and identify potential mitigation strategies. Here, we use a GCS system model (the National
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Mapping existing wellbore locations to compare technical risks between onshore and offshore CCS activities in Texas Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-04-30 Tip A. Meckel, Ramón H. Treviño, Susan D. Hovorka, Alex P. Bump
Carbon dioxide capture and geologic storage (CCS; geologic sequestration) is a promising technology for reducing anthropogenic greenhouse gas emissions to the atmosphere from industrial point sources. Aspects of CCS have been investigated for over two decades, and many large- and small-scale geologic storage field demonstration projects are now underway globally. Interest in offshore CCS has been increasing
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Optimum chain desalination process design for treatment of high TDS brine: A case assessment for future treatment of extracted brine from Shenhua CO2 storage site Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-04-26 Hesam Bazargan Harandi, Liwei Zhang, Ali Kargari, Pang-Chieh Sui, Yan Wang, Meiheriayi Mutailipu, Hao Lu, Qi Li
Carbon dioxide-enhanced water recovery (CO2-EWR) is a promising strategy for managing reservoir pressure build-up and mitigating the risk of fault activation resulting from CO2 injection in deep saline aquifers. CO2-EWR can also be employed for supplying the required water for different applications after a treatment stage for the produced saline water. In this study, a brief review on CO2-EWR technology
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An improved method for feeding ash model compounds to a bubbling fluidized bed – CLC experiments with ilmenite, methane, and K2CO3 Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-04-23 Felicia Störner, Pavleta Knutsson, Henrik Leion, Tobias Mattisson, Magnus Rydén
Biomass conversion with carbon capture and storage (Bio-Energy CCS; BECCS) is one of the options considered for mitigating climate change. In this paper, the carbon capture technology chemical-looping combustion (CLC) is examined in which the CO2 is produced in a stream separate from the combustion air. A central research topic for CLC is oxygen carriers; solid metal oxides that provide oxygen for
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Comparative analysis of energy efficiency of electrostatic precipitator before and after ultralow emission in coal-fired power plants in China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-04-21 Hanxiao Liu, Shuiyuan Luo, Lin Zhao, Yunjin Hu, Ying Cui, Jun Liang, Xiaowei Liu
Electrostatic precipitator (ESP) is the main equipment for flue dust control of coal-fired power plants in China, accounting for about 70% of the total currently. In this paper, energy efficiency data of ESP, including 202 sets before ultra-low emission and 45 sets after ultra-low emission are systematically studied and analyzed by using the research method of field testing and technical investigation
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The impact of regional material flows on circular economy: A case study of southwest China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-04-11 Minxi Wang, Lu Chen, Lu Liu, Rui Zhang, Hong Cheng, Xin Li, Hao Su
Circular economy is beneficial to solve the conflict between the environment and development. The study combines the material flow in human society with the evaluation of the regional circular economy. Through the evaluation method combining DEA and rank-sum ratio, the development level of circular economy in this area is evaluated from both vertical and horizontal perspectives (time level and space
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Layered double hydroxide-derived copper-based oxygen carriers for chemical looping applications: Oxygen release kinetics and impact of loading on long-term performance Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-27 Michael High, Qilei Song, Kyra L. Sedransk Campbell, Paul S. Fennell
Chemical looping with oxygen uncoupling, a variant of chemical looping combustion, requires chemically and physically stable oxygen carriers over long-term redox cycling. Copper-based oxygen carriers are characterised by high oxygen release rates but experience sintering at high temperatures. The use of layered double hydroxides (LDHs), prepared via co-precipitation, as oxygen carrier precursors has
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Prospects of low-temperature solid sorbents in industrial CO₂ capture: A focus on biomass residues as precursor material Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-27 Nausika Querejeta, María Victoria Gil, Fernando Rubiera, Covadonga Pevida
Adsorption using bio-based adsorbents has been pointed out as an economical and environmentally benign technology for CO₂ gas separation and storage. A bio-based adsorbent can be fabricated from low-cost worldwide available biomass feedstock and bio-wastes from different industries (e.g., dairy manure, forestry, agriculture). As a result, it is a carbon rich material of hydrophobic nature, activated
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A carbon dioxide huff and puff project at a mature heavy oil Field in Dagang, China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-23 Chang Hong Gao, Chuan Yao Ji
Carbon dioxide has been proved an effective agent to enhance recovery for relatively light crude oil, but its applications in heavy oil are very limited. This short communication presents field trials of CO2 huff and puff at Dagang, a heavy oil field in Northeast China. Two wells received CO2 injection, and both wells saw higher oil output and lower water-cut after CO2 treatment. This project proves
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CO2 capture performance of a CaO sorbent modified with fulvic acid for the calcium looping cycle Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-21 Dazhan Jiang, Yaru Wang, Zetong Li, Shuaipeng Li, Li Zhang, Luhan Chen, Zhiguo Sun
Capturing CO2 from fossil fuel combustion is of importance for mitigation of climate warming. Among the CO2 capture technologies, the calcium-based sorbent method is promising. However, the most prominent problem of this method at present is that the activity of the sorbent decreases as the number of cycle reactions increases. It seriously affects the industrial application of the calcium-based sorbent
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Interactions between potassium ashes and oxygen carriers based on natural and waste materials at different initial oxidation states Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-11 Victor Purnomo, Fredrik Hildor, Pavleta Knutsson, Henrik Leion
One of the most essential features of an oxygen carrier is its ability to be oxidized and reduced in order to transfer oxygen in a chemical looping system. A highly reduced oxygen carrier can experience multiple performance issues, such as decreased reactivity, agglomeration, and defluidization. This is crucial for processes that require limited oxygen transfer from the air reactor to the fuel reactor
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Promoted Ru/Al2O3 catalysts with improved low-temperature activity for CO2 methanation reaction Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-07 Rong Chen, Liang Shen, Wenhao Zhang, Yi-Fan Han, Zixu Yang, Minghui Zhu
Catalytic thermal hydrogenation of CO2 to CH4 is one of the promising decarbonization technologies, and Ru is considered to be the most active metal for low-temperature CO2 methanation. In this work, a series of metal-promoted Ru-based catalysts were prepared by the impregnation–precipitation method. The catalyst composition, reduction temperature, reaction gas concentration, and reaction conditions
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Copper trade risk in China: A multidimensional dynamic evaluation Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-06 Taixin Wang, Minxi Wang, Xinyu Kang, Lu Chen, Xin Li
Copper is the primary material of the national manufacturing industry, widely used to construct the national economy. As one of the critical minerals, trade security of copper resources is related to the stable development of the domestic industry. The dynamic evaluation of China's copper trade and identification of the principal risk points is helpful to promote the sustainable development of resources
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Field-scale reactive transport assessment of CO2 storage in the Farnsworth unit through enhanced oil recovery practices Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-03 Eusebius J. Kutsienyo, Martin S. Appold, Mark D. White, William Ampomah
The objective of this study was to investigate the transport and fate of CO2 injected into a sandstone reservoir in the western Farnsworth Unit, a hydrocarbon field in northern Texas. The study employed three-dimensional multifluid-phase numerical reactive solute and heat transport modeling. Model inputs were obtained from previous field characterization studies and calibrated to 8 years of historical
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Sustainable and scalable continuous synthesis of metal-organic frameworks for CO2 capture Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-02 Yipei Chen, Tao Wu
This study demonstrates a continuous method for the production of high-quality ZIF-8 and HKUST-1 (surface areas over 1500 m2/g) under mild synthesis conditions (ambient pressure and temperatures below 100°C) with only environmentally preferable green solvents (water and ethanol) being used in the entire synthesis process. High yields of metal organic frameworks (MOFs) are achieved (65% for ZIF-8 and
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Study on the influence of water injection pressure on water absorption process and water injection effect of coal Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-03-01 Lin Wang, Xiangjun Chen, Dezhang Wang, Fenghua An
Rock burst disasters can be reduced and prevented with the help of coal dust water injection. In this study, the high-pressure water injection device is used to examine how the water absorption rate changes over time under various water injection pressures. The results reveal that the water absorption rate of coal samples increases quickly initially before slowing down with water absorption time. Its
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CO₂-shallow groundwater interaction and related hydrogeochemical mechanisms: A review on reduced-scale CO2 release field experiments Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-02-28 João Pedro T. Zielinski, Clarissa L. Melo, Rodrigo S. Iglesias, Pedro R. Reginato
Carbon capture and storage (CCS) has been highlighted as a crucial technology for reducing carbon emissions, yet CO₂ leakage from the reservoir is still a matter of great public concern, especially because of water pollution reasons. Hence, reduced-scale CO₂ release experiments have been conducted worldwide to study hydrogeochemical response in shallow groundwaters. Although other reviews have been
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Metal impregnation on steel converter slag as an oxygen carrier Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-02-22 Fredrik Hildor, Tobias Mattisson, Carl Linderholm, Henrik Leion
Oxygen carriers used in chemical looping processes operated with biofuel are affected by the inorganic matter of the fuel. It is therefore expected that the lifetime of the oxygen carrier is limited, and preferably low-cost oxygen carriers should be used. Oxygen carriers based on iron ore or steel manufacturing waste products are available in significant quantities at low cost. However, it is common
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Quantum chemical study of CO2 physisorption and chemisorption on EDA-grafted graphene oxide Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-02-16 Jieli Jin, Zhengcheng Wen, Shengqi Li, Ju Huang
Organic amine grafting on graphene oxide (GO) is a potentially good CO2 adsorbent. The mechanism of CO2 capture by ethylenediamine grafted GO (EDA-GO) is studied in detail by quantum chemical method in this article. A reasonable adsorbent model is constructed, and through electrostatic potential analysis, it is found that the larger negative electrostatic potential (GOEP/GOCA: N(180)/N(30) site) is
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Decoupling analysis and peak prediction of carbon emission in less developed provinces: A case study of Sichuan province, China Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2023-02-01 Lu Chen, Xin Li, Lu Liu, Bei Sun, Xinyi Hu, Minxi Wang
With the increasing severity of climate change, the unevenness of economic development has resulted in the heterogeneity of carbon peaking in different regions. Under the dual-carbon target strategy, the peak research in China's less developed provinces is significant. This study uses the emission factor method to calculate the carbon emission inventory of an economically underdeveloped province (Sichuan)
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CCUS or no CCUS? Societal support for policy frameworks and stakeholder perceptions in France, Spain, and Poland Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2022-12-21 Julius Wesche, Silvia Germán, Lila Gonçalves, Ilon Jödicke, Sergi López-Asensio, Ana Prades, Sabine Preuß, Christian Oltra Algado, Elisabeth Dütschke
Carbon capture, utilization and sequestration (CCUS) is a potentially relevant option to limit greenhouse gas emissions. The development of CCUS has so far been slow in spite of substantial plans for implementation for example by the European Union. Lack of societal support is among the reasons cited for this gap between ambitions and implementation. Against this background, this paper simultaneously
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Assessing a potential site for offshore CO2 storage in the Weixinan Sag in the northwestern Beibu Gulf Basin, northern South China Sea Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2022-12-21 Jian Xie, Xiaofeng Gou, Jian Guo
Geologic carbon storage (GCS) activities, especially offshore, are still far insufficient worldwide. Sedimentary basins in the northern South China Sea (nSCS) are identified to be favorable to offshore GCS deployment. This study investigates by numerical reservoir simulations the performance of the Weixinan Sag in the northern depression of the Beibu Gulf Basin (BGB), which is considered the most promising
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Life cycle assessment of carbon capture and storage in saline aquifers for coal-fired power generation: An Indian scenario Greenh. Gases Sci. Technol. (IF 2.2) Pub Date : 2022-12-11 Abhishek Gupta, Akshoy Ranjan Paul, Nawshad Haque
Human activity is causing an increase in the atmospheric concentration of greenhouse gases (GHGs) resulting in global climate change. The use of carbon capture and storage (CCS) in energy supply systems is one method of reducing GHG emissions. Three pulverized coal-fired power stations near the Krishna–Godavari basin with and without CCS have been evaluated using the life cycle assessment and economical