To improve the bioavailability and reduce the therapeutic dose and side effects of Sodium valproate (S-VPA), nanoparticles of this drug were loaded on the polyvinylpyrrolidone (PVP) and hydroxypropyl methylcellulose (HPMC) polymers via the supercritical solvent impregnation (SSI) process. This process was carried out at different pressures (150–250 bar), temperatures (308–328 K), and impregnation times

Solar-induced photothermal catalysis of CO2 reduction is an effective method for chemical CO2 conversion with great potential. Understanding its reaction mechanism is crucial for the development of new catalysts. In this work, the mechanism of CO2 reduction on a BaTiO3 supported Ni catalyst was studied using density functional theory (DFT). The presence of the BaTiO3 base was found to have great significance

Clay minerals can be identified as a prospective target for long-term CO2 sequestration due to their accessible interlayer cations and periodic sheet structure. Understanding the reactive motion of mineral and fluids has dual advantages of resources and environment. To clarify the storage mechanism, an alternative strategy for CO2 mineralization was investigated through molecular dynamics (MD) simulation

Consumption of fossil fuels and their scarcity of resources as a global challenge has posed a major problem for the energy sector. To this end, four sub-systems including oxy-fuel production and combustion, hydrogen production, power generation and liquefaction and storage of carbon dioxide were integrated to obtain a new power generation system. The proposed system was evaluated based on techno-economic

The capture and fixation of CO2 can effectively alleviate greenhouse effect. Propylene carbonate is a highly efficient solvent, which can be used as an excellent medium for lithium battery. It is of great significance to convert CO2 into propylene carbonate. In this paper, ionic liquid BMImBr was immobilized into the pores of SBA-15 by supercritical deposition, and BMImBr@SBA-15 was obtained for catalytic

Although biodegradable straws are widely used, they are often unsuitable for disposal in open environments and cannot be recycled in the same manner as conventional plastic straws. Hence, an effective disposal method needs to be developed. Herein, the thermochemical conversion of biodegradable straws made mostly of polylactic acid (PLA) was considered, and the effects of CO2 on the characteristics

The persistent increase in CO2 emissions and the continued depletion of fossil resources are two major challenges of the 21st century. These challenges can be tackled with Carbon Capture and Utilization (CCU), fby capturing and using CO2 as a valuable feedstock. Plasma presents a reactive environment to convert the CO2 molecule efficiently into higher-value chemicals and is a promising CCU technology

An industrial dyeing process in supercritical carbon dioxide has been modelled with computational fluid dynamics using Ansys Fluent software. In order to investigate the distribution of the dye carrier fluid, the flow resistance of the fabric has been accurately characterised. For this purpose, in the first part of the work a plain-woven fabric geometry was created in the open software Tex-Gen and

Coal-based electricity generation surged 22% in 2021 versus 2019 in the USA due to high natural gas prices and ease of transportation. This contradicts societies desire to produce clean energy and underscores the urgency to develop technologies to capture atmospheric CO2 and produce value-added products. The reverse water gas shift (RWGS) converts CO2 to CO, which is a basic intermediate for the chemical

The gradually increasing atmospheric concentration of greenhouse gases has caused global climate change and subsequent environmental problems. To negate the emission of greenhouse gases from human activities, converting captured carbon into value-added products and changing our energy paradigm from fossil fuels to hydrogen both are significantly investigated. Chemical looping technology can offer several

A series of novel amino-alcohol compounds were synthesized from ethylenediamine and cyclic carbonates derived from different glycidyl ethers and CO2. The amino-alcohols were applied as chain extender for the preparation of polyurethaneurea (PUU) containing hydroxyl groups. The influence of the amino-alcohols on the structure and property of PUU were studied by mechanical testing, Fourier transform

A trimethylammonium-functionalized polyepichlorohydrin membrane (TPp) was synthesized using inexpensive, eco-friendly raw materials and easy synthetic steps and evaluated as CO2 sorbent. The polymeric membrane exhibited satisfactory sorbent performance in terms of stability, rapid adsorption, high selectivity and working capacity. The peak capture capability of 1.34 mmol g-1 was achieved at 25 °C under

The present work adopts the one-step batch foaming technique to develop microcellular foams from polysulfone (PSU) and polyethersulfone (PES) using supercritical carbon dioxide (CO2) as a physical blowing agent. The results illustrates that the high temperature polymers can successfully generate highly uniform cellular structures with CO2, exhibiting cell densities in the order of 1010 cells/cm3 but

A thermodynamic analysis of the methanation of CO2 within biogas sets the limits to the achievable performances, directing process and catalyst development. Practical indications of thermodynamics are elaborated. The large presence of CH4 in the biogas does not hinder the achievement of an almost complete CO2 methanation, even with CH4/CO2 = 3. The smaller the temperature, the higher the CH4 concentration

In this investigation, an economically feasible strategy has been proposed for the fabrication of good quality membrane support by utilizing low-cost industrial-grade alumina powders, coded as A-16SG and CT-1200SG with an average particle size of 0.44 and 1.41 µm, respectively. Herein, the meticulous alteration of the processing parameters and the targeted utilization of industrial grade powders with

Carbon dioxide reduction has become an important challenge as the world becomes increasingly concerned about carbon neutrality. The production of synthetic natural gas (SNG) from CO2 by means of a methanation reaction utilizing hydrogen derived from renewable energy sources is widely regarded as an efficient and promising carbon capture and utilization technology that is anticipated to result in carbon

Dry reforming of methane (DRM) remains challenging due to catalyst deactivation driven primarily by carbon deposition and metal sintering. Nanocatalytic materials offer great activity and stability in the DRM reaction due to the high dispersion of ultrasmall metal nanoparticles. Here we present a designated review on the role of the catalyst’s oxygen mobility/vacancy in carbon gasification during the

Demolished concrete is a large carbon sink which has not been utilized yet. Carbonation of hydrated cement paste from old concrete can effectively store CO2, and in addition, the resulting carbonated cement paste can be used as a pozzolanic material in new composite cements. This concept reduces the CO2 footprint of cement and promotes circularity and recycling. This work investigates a semi-dry gas-solid

To mitigate global warming and fossil fuel shortages a novel oxy-fuel combustion power plant integrated with a power to gas system is proposed. A net-zero emission MATIANT cycle with inherent CO2 capture ability is selected as the power cycle also providing the CO2 and power demand of the power to gas system, which comprises a proton exchange membrane electrolyzer for hydrogen production and a Sabatier

Carbon capture and storage is one of the most important technologies to reduce CO2 emissions. Oxy-combustion can be considered as the most energy combustion and cost-efficient CCS technology. In this study, a detailed techno-economic assessment of Turkish domestic coal, biomass and torrefied biomass (biocoal) as a fuel is conducted on 2 × 160 MW CFB units of ÇAN Power plant in Turkey. ASPEN HYSYS was