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Enhanced coarse coal slime separation in a gravity–flotation coupled separator with up-flow feeding and dual-concentrate Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-03-15 Canjin Luo, Lei Tian, Zihao Zhao, Hongli Yang, Minqiang Fan
A gravity – flotation coupled separator with up-flow feeding and dual-concentrate was developed to improve the recovery and selectivity in coarse coal slime separation. The separator combines flota...
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Methods for obtaining humate-containing fertilizers from brown coal Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-03-14 Bekzhan Omarov, Kurmanbek Zhantassov, Manap Zhantassov, Kamilya Kirgizbayeva, Zhaxylyk Altybayev
The purpose of the study is to examine the main methods of obtaining fertilizers and optimizing processes. Using methods of analysis, comparison, and experimentation, three main approaches to obtai...
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Study on the effect of flow field optimization on flotation efficiency Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-03-03 Xiaodong Yu, Bochao Li, Fusheng Niu, Jinxia Zhang, Zhenjia Chang, Liyong Wei, Shunzeng Tong
With the help of computational fluid dynamics (CFD) methodology, the Eulerian model was used for numerical simulation of XFD type flotation machine. By altering the flow field pattern, analyzing th...
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The influence mechanism of ionic liquids on the ash melting and combustion characteristics of Zhundong high-alkali coal Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-28 Mingrui Zhang, Junwei Guo, Shaoyu Yao, Guangjian Ren, Ziyi Guo, Guanghui Yan, Bo Zhang
This study investigated the ash reduction and quality improvement effects of four types of ionic liquids on Zhundong high-alkali coal, focusing on the evolution laws of coal ash melting and combust...
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Discrete element simulation study on the screening effect of composite vibrating screen for coal particles Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-28 Huarui Yang, Xuedong Ma
To strengthen the layering effect of coal particles on the screen surface and improve the screening efficiency, a composite vibrating screen was proposed based on the void filling effect of mixed p...
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Polyaspartic acid, an eco-friendly regulator for the improvement of coking coal flotation: applications and mechanism Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-27 Zhanglei Zhu, Bohui Zhao, ChengChi Tian, Qiuyue Sheng, Zhen Li, Ningning Zhang, Jizhen Wang, Xiaohui Yang
In this study, a novel approach is to apply polyaspartic acid (PASP) as an eco-friendly regulator for the flotation of coking coal, which is different from the conventional use of oil collectors on...
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Research on spontaneous combustion characteristics and high temperature point prediction method of rectangular coal pile Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-26 Ju Zhao, Ran Meng, Shaoqiang Yuan, Baoyuan Wang
In order to prevent and control the spontaneous combustion phenomenon of rectangular coal pile under the coal storage and transportation scenario, the spontaneous combustion process of rectangular ...
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Optimization of specific energy consumption in the high concentration slurry disposal pipelines for coal ash in thermal power plants Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-26 Ankit Prakash, A. K. Upadhyay, Anubhav Rawat
In thermal power plants, the disposal of coal fly ash is one of the major challenges requiring energy input for its safe disposal, so optimization is needed to minimize the required energy input at...
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Effect of mixed collector on the LRC flotation: an experimental and molecular dynamics simulation study Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-25 Lu Wang, Jihui Li, Binghan Wen, Liqiang Ma
To investigate the mechanism underlying the effect of mixed collector (MC) composed of diesel and span-80 on LRC flotation, a combination of experimental and molecular simulation approaches was emp...
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Enhanced flotation separation of low-rank coal by using polar/nonpolar binary compound collector Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-23 Zhigang Xue, Yangchao Xia, Pengcheng Qu, Yaowen Xing, Xiahui Gui
The surface hydrophobicity of low-rank coal is meager, hindering the efficient adsorption of hydrocarbon oil on its surface. Consequently, the hydrophobicity modification of the coal surface is adv...
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Demineralization of fine and ultrafine coal particles of Talcher area by oil agglomeration technique Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-16 Brahmotri Sahoo, Mitali Gouda, Chandradhwaj Nayak
The costs of fine coal cleaning cannot surpass the fetched recuperation within the included clean coal to be financially practical. In this present study, percentage of ash and yield of the agglome...
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Co-gasification of coal and biomass: synergistic effects on gasification reactivity induced by inherent organic components Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-14 Wenjian Zhang, Wenyu Li, Zhusen Wu, Xueting Yang, Jiahao Hu, Yawei Su, Pei Li, Xiao Li
It is widely recognized that the synergistic effects during co-gasification process of coal and biomass are caused by the inherent alkali/alkaline earth metals (AAEM). However, the compositions of ...
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Coal quality enhancement by using bio extracts of carissa carandas fruits in combination with Hydro Fluoric acid Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-14 Gangadhara Reddy Ulavapalli, Rambabu Koyilapu, T. Gouri Charan, V. Murali Krishna, G. V. Subba Reddy
This paper addresses the imperative need for environmentally sustainable beneficiation technologies tailored for low-rank coals, constituting about 50% of global coal deposits. The focus is on rece...
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Research on Dual GRU model driving by time series alignment for multi-step prediction of ash content of dense medium clean coal Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-08 Jun Wang, Ranfeng Wang, Xiang Fu, Kai Wei, Jie Han, Qian Zhang
Dense medium cyclone separation is a widely used coal processing method. However, duetween the ash content measurement and the other sensors. However, existing studies either do not consider the im...
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Comparative investigation of spontaneous combustion of biomass, hydrochar, coal and their blends using Wits-Ehac and thermogravimetric analysis Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-08 Ethel Tsholofelo Matsobane, Moshood Onifade, Bekir Genc, Samson Bada
Biomass, hydrochar, coal and hydrochar/coal blends have been proposed as alternative energy sources to coal. Given that the new fuels are derived from biomass, which is highly reactive, it is neces...
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Intensification of flotation separation process of residual carbon from coal gasification fine slag using ultrafine carbon particles conditioning Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-02 Yannan Liang, Hainan Wang, Ruifeng Chen, Danlong Li, Quanzhi Tian, Lei Li, Haijun Zhang
Coal gasification fine slag (CGFS) is a high-ash product with high content of residual carbon. Flotation is a common method to separate residual carbon from CGFS. However, conventional flotation is...
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Influence of coal quality on the tendency for slagging formation on a spreader stoker boiler Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-29 Stefany Saenz Prado, Albio de Jesús Gutiérrez Amador, Jaime José Acuña Polanco
During the combustion of solid fuels in power generation systems, one of the biggest problems related to ash is the surface deposition and accumulation of molten or sintered slag, commonly known as...
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Enhancement of magnetic activation on the backfilling performance of coal gangue-based composite materials Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-02-02 Yanqing Guo, Weigang Zhang, Yueqin Qiu, Zhihui Shen
The large accumulation of coal gangue has resulted in significant environmental contamination and detrimental impacts. Utilizing it as a filler material in coal mining operations may successfully a...
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The use of petroleum derivative mixtures as bridging liquid for oil agglomeration of lignite coal Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-30 Özlem Kaya, Neriman Taşdöğen Cebe
The aim of the present study was to investigate the use of mixtures of petroleum derivatives as bridging liquids for oil agglomeration of Sivas/Gemerek lignite coal. The study investigated the effe...
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Study on impact mechanical characteristics and screening performance of fine coal during flip-flow screening process Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-30 Xu Hou, Pengfei Mao, SongXue Zhang, Jiahao Pan, Chen Wang, Yuemin Zhao, Weinan Wang, Chenlong Duan
Screening is a key link in the coal preparation, and flip-flow screening is the important method for achieving efficient classification of fine coal. During screening, the mechanical response of th...
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Predicting the ash content in coal flotation concentrate based on convolutional neural network Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-24 Zhicheng Liu, Longjiang Li, Jiang Zeng, Yalan Wang, Jian Yang, Xiang Liu
Convolutional neural networks (CNNs) are currently one of the most popular image classification technologies. Their excellent image classification ability enables the prediction of the ash content ...
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Influence of particle size gradation on the preparation of highly concentrated coal-water slurry and the development of a gradation model Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-24 Cheng-Li Wu, Li-Rui Mao, Xu-Long Ma, Jian Li, Fa-Cun Jiao, Han-Xu Li
Aiming at the problem that low-rank coal is unsuitable for making CWS (coal-water slurry) and lacks an accurate particle size gradation prediction model. This paper expounds on the effects of ball ...
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Flotation and oil agglomeration of high ash LVMC coal after deshaling by jigging: a comparative study using different collectors Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-21 Piyush Malhotra, Bivas Kumar Pradhan, Nikkam Suresh
LVMC coal with an ash content of 38.70% was initially crushed to −4.0 to +0.50 mm and deshaled using a laboratory model Batac Jig. The resulting concentrate was further size reduced to −0.50 mm and...
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Research on the process of coal’s pores and fissures splitting during liquid nitrogen freeze-thaw action Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-19 Shuaiqi Dong, Dong Zhao, Jingyu Jin, Juan Wang
A clean and effective unconventional fossil fuel is coalbed methane (CBM). The development of CBM is essential to reducing the lack of oil and gas resources, preventing coal mine gas mishaps, and s...
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Impact and potential of carbon sequestration and utilization: fundamentals and recent developments Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-19 Arnab Mondal, Soumitra K Gupta, Shaurya Yaduvanshi, Muhammad Khan, Samar Layek, Vamsi Krishna Kudapa, Surajit Mondal
Carbon dioxide is a primary greenhouse gas that plays a vital role in shaping life on Earth. However, the continuous anthropogenic emissions of CO2 at prominent levels have caused severe damage to ...
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Influence mechanism of small molecular organics on the wettability of coal Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-19 Huaijun Ji, Zebin Wang, Yi Hou, Yunzhuo Li, Yue Wang
The investigation into the impact of small molecular in coal on its wettability holds significant importance in the field of coal dust control. In this study, eight coal structure models with diffe...
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Influence of oil film on the interaction between bubble and bubble/lignite particle Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-19 Chunyun Zhu, Lijuan Sun, Ming Li, Guosheng Li, Yaowen Xing, Xiahui Gui
The floatability of low-rank coal is poor because of its low metamorphosis, and the oily bubble flotation is an effective means to collect coal particles. In this paper, adhesion angles and forces ...
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Heat and mass transfer analysis of coal coking process in the coking chamber Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-14 Kaiming Xiao, Xunliang Liu, Huibiao Hu, Zhi Wen, Goufeng Lou
To study the coking heat mass transfer process and reveal the law of industrial-scale coal pyrolysis, the heat transfer characteristics of coal material in the coking process are analyzed based on ...
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Coal middling retreatment using high voltage pulses technique: selective liberation mechanism Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-07 Xiaodong Huo, Luokang Dong, Weiran Zuo, Wei Huang
With combined efforts from the mineral liberation analyzer (MLA), elementary analysis and sulfur speciation analysis, this study expands upon coal fragmentation using high voltage pulse (HVP) by in...
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SBSNet: selective branch segmentation network of coal flotation froth images Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-08 XianWu Huang, ZiHao Wu, HaiLi Shang, JinShan Zhang, Zhao Cao
Flotation is a physical and chemical process that uses the difference between mineral surface properties to separate valuable minerals from worthless minerals through the attachment of bubbles. The...
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Detection of coal gangue based on spectral technology and enhanced lightweight YOLOv7-tiny Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-07 Pengcheng Yan, Wenchang Wang, Guodong Li, Yuting Zhao, Jingbao Wang, Ziming Wen
Underground coal gangue sorting is a critical component of modern intelligent coal mining, holding significant importance for the preservation of natural resources and the ecological environment. T...
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Study on density distribution characteristics and fine coal separation of magnetically fluidized beds of microfine particles Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-04 Shulei Song, Xuan Xu, Yakun Tian, Zengqiang Chen
In this paper, the characteristics of the axial and the radial density distribution and the density stability of a gas-solid fluidized bed formed by microfine magnetite powder were studied under di...
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Flotation behavior and kinetic characteristics of trace elements in coal Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-04 Cheng Liu, Xin Long, Shanshan Cao, Mengcheng Tang, Jinhe Pan, Ningning Zhang, Longfei Cong, Binbin Qian, Zhiping Wen, Changchun Zhou
Flotation is considered as an efficient method for removing hazardous trace elements from coal. However, the flotation kinetic characteristics of trace elements in coal are still missing. This rese...
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Lightweight coal and gangue detection algorithm based on improved Yolov7-tiny Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-04 Zhenguan Cao, Zhuoqin Li, Liao Fang, JinBiao Li
This paper proposes a lightweight coal and gangue detection algorithm based on Yolov7-tiny for the current target detection algorithms, which have problems such as large model computation, low dete...
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Impact of anthracite blending and SDS addition on slurryability and stability of Indian high ash coal water slurry Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-04 Akash Pandey, Dulari Hansdah, Satish Kumar
The conventional modes of transporting coal frequently result in substantial fiscal challenges and environmental deterioration. Slurry-based hydraulic transportation of coal through pipelines has p...
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Extraction of valuable critical metals from coal gangue by roasting activation-sulfuric acid leaching Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-04 Chao Kang, Shengchao Yang, Jinpeng Qiao, Yuqian Zhao, Sheng Dong, Yanze Wang, Chenlong Duan, Jianrong Liu
Coal gangue is a bulk industrial solid waste produced in the process of coal mining and washing, with the dual attributes of resourcefulness and hazardousness. It can be used as a reserve resource ...
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Mechanism of measuring ash with low-energy gamma rays for equal coal seam thickness Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-03 Wenbao Lv, Yaoxuan Wang, Long Li, Liang Jin, Chao Wang
Considering the issues related to significant fluctuations and errors in the measured data of the dual-energy gamma-ray online ash analyzer caused by various external factors, this study investigat...
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Data-driven computational approaches to estimate gross calorific value of coal using proximate and ultimate analyses Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-02 Tanveer Alam Munshi, Labiba Nusrat Jahan, M. Farhad Howladar, Mahamudul Hashan
A crucial factor in determining coal’s quality is its gross calorific value (GCV). GCV is generally determined experimentally using an adiabatic bomb calorimeter. But the laboratory measurement pro...
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Fuzzy adaptive control of coal gangue sorting parallel robot with variable load Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2024-01-02 Deyong Shang, Yunshan Huang, Xinyi Huang, Tianyou Zhang, Yanqi Niu
Delta parallel robot is widely used in the high-speed sorting industry with a light load and constant load. Its motion control is based on kinematic planning, without considering the influence of l...
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Coal blending optimization in thermal power plants based on multi-strategy fusion multi-objective particle swarm optimization Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-12-29 Jun Li, Fulong Yi, Yuhua Ma, Yongfu Wang
Rising coal price and increasingly stringent emission policy highlight the importance of balancing economic benefit and sustainable development of coal-fired power plants. In order to make the powe...
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Optimization of extrinsic parameters for beneficiation of coal with the help of Cronobacter sp Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-12-25 Shweta Rai, Asha Lata Singh, Prakash K Singh, Sunil Kumar, Donald Huisingh
Beneficiation increases the calorific value of low-grade coal and extracts environmentally sensitive elements. Bacteria may be used as eco-friendly coal cleaning tool, but the treatment is influenc...
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Cottonseed oil biodiesel used as a renewable collector for coking coal flotation Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-12-25 Chenyang Xu, Haoran Sun, Heng Pei, Peng Han, Chaodang Wu, Xiaomei Ma
Hydrocarbon oil collectors used in coking coal flotation are nonrenewable resources, and their collecting performance is difficult to meet current industry needs. In this study, cottonseed oil biod...
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Synthesis and kinetic analysis of zeolites based on fly ash Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-12-20 Xianyun Ma, Yimiao Nie, Jiale Guo, Ling Wang, Shuxian Liu, Long Wang, Sen Wang
Rational utilization of fly ash, a widely emitted solid waste, was explored by investigating the effects of various factors on the types and properties of zeolites prepared from fly ash. Additional...
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Mechanistic study on the influence of hydrogen bonds on the removal paths of lignite ether bonds and phenolic hydroxyl groups in hydrothermal dewatering Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-12-21 Jianhong Liu, Yujie Yu, Jiyun Zhu, Rui Huang, Yongxin Zheng, Anding Zhong, Xingming Wei
To investigate the impact of hydrogen bonds on the removal mechanism of ether bonds and phenolic hydroxyl groups during the hydrothermal dewatering (HTD) process of lignite, we employed density fun...
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Experimental study on the influence of illuminance and spectral wavelength on image and spectral parameters of coal and gangue Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-28 Man Li, Yinxue Yuan, Xiangang Cao
To reveal the effects of illuminance and spectral band changes on coal and gangue image and spectral parameters, and to provide fundamental data for using multispectral images in coal and gangue re...
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A novel separation density model based on force analysis of coal-based oil shale in pulsed fluidized beds Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-25 Zhonglin Gao, Guangxin Lu, Chenyang Zhou, Chenlong Duan, Hongzheng Zhu
It is important to study the theory and technology of coal-based oil shale dry beneficiation in China. Traditional separation density models are obtained through particle force analysis, but most s...
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New approach to evaluate the wettability of low-rank coal powders based on multiple light scattering Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-24 Han Guo, Min Liu, Haichang Yang, Erfa Ding, Shiqi Dai, Yijun Cao, Xiahui Gui, Mengdi Xu, Xing Yaowen
Wettability is an important interfacial property that affects the separation of micro-fine particles. This paper carried out a new approach to evaluate the wettability of low-rank coal (LRC) powder...
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Study on mechanical characteristics and energy accumulation and release law of coal samples with different saturation and creep damage Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-23 Yangyang Li, Dan Zheng, Shichuan Zhang, Jinming Dang, Haozheng Zhang, Jiaqi Hou
Under the long-term influence of overburden load and water infiltration, coal undergoes creep damage, and the disturbance caused by mining activities can lead to sudden instability, triggering geol...
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Mechanical properties of coal ash concrete in the presence of graphene oxide Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-20 P. Prasanthni, B. Priya, G. Dineshkumar, G.N. Gobinath
Modern concrete technology places a strong emphasis on incorporating diverse resources, particularly industrial byproducts, into the concrete production process. The utilization of fly ash, a notab...
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Numerical modelling of two-phase flow hydrodynamics of column flotation - validation against ERT data Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-19 Balraju Vadlakonda, Prasad Kopparthi, Narasimha Mangadoddy
In mineral processing, column flotation is being used extensively for fine particle beneficiation. Although a few attempts were made to develop computational fluid dynamics (CFD) models for column ...
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Research on identification of coal and gangue under complex working conditions based on relief feature Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-19 Qisheng Luo, Shuang Wang, Yongcun Guo, DeYong Li, Lei He, Gang Cheng
To improve the identification accuracy of coal gangue under the complex working conditions of pulverized coal and moisture adhesion on the surface, this paper studies the distribution difference of...
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CO2 sequestration and CH4 extraction from unmineable coal seams in Singrauli coalfield Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-16 Satyaveer Singh, Annapurna Boruah, J Devaraju
The country’s energy demand is experiencing rapid growth, and fossil fuels remain the primary resources to meet this increasing need. However, global warming poses a significant challenge for gover...
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Application of suitable methodology for control of coal fire according to its magnitude in hot strata blast-holes–an approach Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-13 Jitendra Pandey, N. K. Bhagat, D. D. Tripathi, A. Khalkho, J. K. Pandey
Coal mine fire is a common phenomenon in Indian coalfields and great concerned on safety of the person engaged in mining operations. In opencast coal mine, particularly where the extraction of prev...
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Comparative investigation on the chemical pre-desulfurization process of a high sulfur coal through orthogonal experiments: a case study Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-08 Yumeng Chen, Lanhui Huang, Zhendong Song
The effect of different chemical pre-desulfurization processes were compared to achieve the utilization of high sulfur coal efficiently and economically and its total sulfur content is 2.19%. The m...
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The influence of ball collision charging on carbon recovery of fly ash triboelectrostatic separation Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-09 Jie Yao, Hui Zhou, Chen Yinghua, Li Haisheng, Fengyi Cai, Siwei Chen
The recovery of unburned carbon particles from fly ash by triboelectrostatic separation can realize energy conservation and solid waste recycling. Collision charging by metal ball has been proposed...
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A review of intelligent coal gangue separation technology and equipment development Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-11-06 Zhigang Jiang, Kunzhong He, Dongming Zhang
One of the necessary ways to achieve the efficient, clean utilization of coal resources is to reduce the amount of coal gangue in raw coal to ensure the development of clean, low-carbon, and green ...
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Coal biotransformations under aerobic conditions: screening and characterization of potential biocatalysts Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-10-30 Ali Nisar Khan, Kalsoom Akhtar, Muhammad Zia ur Rehman, Shazia Khaliq, Nasrin Akhtar, Munir Ahmad Anwar, Neelma Ashraf
Coal is one of the important energy sources; however, the direct combustion of raw coals is discouraged due to their low calorific value and the production of harmful gases. Microbial transformatio...
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Study on filtration equations based on filtrate viscosity Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-10-24 Hongguang Lv, Wei Chen, Xuegang Kang, Gen Huang, Jihui Li, Liqiang Ma
Classical filtration equations incorporate microscopic parameters, which pose challenges when applied in industrial settings. Previous extensive research has established the impact of filter cake t...
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Recognition and location of coal gangue based on BiFPN and ECA attention mechanism Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-10-24 Yan Pengcheng, Kan Xuyue, Zhang Heng, Chen Fengxiang, Wang Wenchang, Wu Ruokai
Aiming at the problems of low detection accuracy, slow detection speed and poor stability of traditional coal gangue detection based on image processing, a new YOLOv5s-EB (You Only Look Once Versio...
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Graphitization of anthracite catalyzed by single metal oxides and its enhanced electrical conductivity Int. J. Coal Prep. Util. (IF 2.1) Pub Date : 2023-10-18 Yude Zhang, Yan Li, Qian Zhang, Guangzhen Li
A series of synthetic graphite was fabricated through metal oxide catalytic graphitization using purified anthracite (TYC). The effects of graphitization temperature, catalyst type and its addition...