Results 11 to 20 of about 494,697 (190)

Critical review of methods for intensifying the gas generation process in the reaction channel during underground coal gasification (UCG)

open access: yesMining of Mineral Deposits, 2023
Purpose. The research purpose is to perform a critical analysis of methods for intensifying the gas generation process in the reaction channel to improve the efficiency and economic feasibility of coal seam gasification technology.
V. Lozynskyi
semanticscholar   +1 more source

Mathematical model and methods for solving heat-transfer problem during underground coal gasification

open access: yesMining of Mineral Deposits, 2022
Purpose. A mathematical model development for heat transfer during underground coal gasification based on the transcendental equation solution by the Newton-Raphson method. Methods.
P. Saik, M. Berdnyk
semanticscholar   +1 more source

Gasification of Solid Fuels (Coal, Biomass and MSW): Overview, Challenges and Mitigation Strategies

open access: yesEnergies, 2022
Currently, hydrogen energy is the most promising energy vector, while gasification is one of the major routes for its production. However, gasification suffers from various issues, including slower carbon conversion, poor syngas quality, lower heating ...
M. Shahabuddin, Tanvir Alam
semanticscholar   +1 more source

Simulation of co-production system based on coal partial gasification under different reactant gas atmospheres [PDF]

open access: yesE3S Web of Conferences, 2023
In order to explore the comparison of coal partial gasification hydrogen-electricity cogeneration systems under different gasification agent atmospheres, based coal partial gasification, including steam cycle power generation and syngas processing for ...
Zhang Zeyi, Shao Yingjuan
doaj   +1 more source

Effects of Mechanical Activation on Physical and Chemical Characteristics of Coal-Gasification Slag

open access: yesCoatings, 2021
Coal-gasification slag (CGS) was subjected to mechanical grinding by three different methods. We studied the effects of mechanical activation on various physical and chemical characteristics of the CGS, including particle-size distribution, specific ...
Feng Wu, Hui Li, Kang Yang
semanticscholar   +1 more source

Experimental Studies of the Effect of Design and Technological Solutions on the Intensification of an Underground Coal Gasification Process

open access: yesEnergies, 2021
This paper represents the results of experimental studies of physical modeling of the underground coal gasification process in terms of implementation of design and technological solutions aimed at intensification of a gasification process of thin coal ...
O. Bazaluk   +5 more
semanticscholar   +1 more source

Key technologies and prospect for in-situ gasification mining of deep coal resources

open access: yes矿业科学学报, 2021
China has rich reserves of deep coal resources, and underground coal gasification can transform coal into gas and transport it to the ground, which is an important way for in-situ fluidized mining of deep coal.This article introduces the development ...
Liu Shuqin, Chang Zhibing, Liu Jinchang
doaj   +1 more source

Analysis of recovery rate for underground coal gasification based on strength and permeability

open access: yesMeitan xuebao, 2023
The medium and deep underground coal gasification (UCG) is a new technology of coal utilization, and there is still lack of criterions to evaluate recovery rate.
Pengcheng HAO   +7 more
doaj   +1 more source

An exsitu underground coal gasification experiment with a siderite interlayer: course of the process, production gas, temperatures and energy efficiency

open access: yesInternational Journal of Coal Science & Technology, 2021
A 72-h ex situ hard coal gasification test in one large block of coal was carried out. The gasifying agent was oxygen with a constant flow rate of 4.5 m3/h. The surroundings of coal were simulated with wet sand with 11% moisture content.
M. Wiatowski   +4 more
semanticscholar   +1 more source

Effect of Biomass Char Additives on the Hydrogasification Behavior of a Bituminous Coal

open access: yesBioResources, 2016
The hydrogasification behavior of a Chinese bituminous coal with three different biomass char additives, i.e., sargassum char (SG char), saw dust char (SD char), and wheat straw char (WS char), was studied in a pressurized fixed bed reactor.
Huaili Zhu   +3 more
doaj   +1 more source

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