Underground coal gasification–Part II: Fundamental phenomena and modeling

G Perkins - Progress in Energy and Combustion Science, 2018 - Elsevier
Underground coal gasification can convert deep coal into synthesis gas for use in the
production of electricity, fuels and chemicals. This paper provides a review of the …

Estimation of the cavity volume in the gasification zone for underground coal gasification under different oxygen flow conditions

F Su, X He, M Dai, J Yang, A Hamanaka, Y Yu, W Li… - Energy, 2023 - Elsevier
In this study, the impact of oxygen flow rate on the cavity of the gasification zone was
analyzed through two experiments using a coaxial hole model. The oxygen flow rate was …

Investigation of underground coal gasification in laboratory conditions: A review of recent research

J Kačur, M Laciak, M Durdán, P Flegner - Energies, 2023 - mdpi.com
The underground coal gasification (UCG) technology converts coal into product gas and
provides the option of environmentally and economically attractive coal mining. Obtained …

Energy recovery evaluation and temperature field research of underground coal gasification under different oxygen concentrations

F Su, T Zhang, J Wu, Q Deng, A Hamanaka, Y Yu… - Fuel, 2022 - Elsevier
In this paper, UCG simulation experiments were carried out on selected coal samples to
study the effects of the gasification agent ratio on the product gas composition and calorific …

Study on the monitoring method of cavity growth in underground coal gasification under laboratory conditions

F Su, J Wu, Q Deng, Y Yu, A Hamanaka, MJ Dai… - Energy, 2023 - Elsevier
The growth state of the combustion cavity during underground coal gasification (UCG)
affects the gasification process's efficiency, stability, and accurate monitoring and control. In …

Theoretical research on heat transfer law during underground coal gasification channel extension process

L Xin, W Cheng, J Xie, W Liu, M Xu - International Journal of Heat and Mass …, 2019 - Elsevier
In order to study the heat transfer issue of underground coal gasification (UCG) channel, an
extension model of cylindrical channel was established to study the temperature distribution …

Insights into solid-gas conversion and cavity growth during Underground Coal Gasification (UCG) through Thermo-Hydraulic-Chemical (THC) modelling

W Gao, R Zagorščak, HR Thomas - International Journal of Coal Geology, 2021 - Elsevier
This paper presents the application of a thermal-hydraulic-chemical model to simulate (1) a
laboratory small-scale borehole combustion experiment using high-ash-content coal and (2) …

Kinetics of steam gasification of bituminous coals in terms of their use for underground coal gasification

S Porada, G Czerski, T Dziok, P Grzywacz… - Fuel Processing …, 2015 - Elsevier
The kinetics of steam gasification was examined for bituminous coals of a low coal rank. The
examined coals can be the raw material for underground coal gasification. Measurements …

Experimental studies on humidified/water influx O2 gasification for enhanced hydrogen production in the context of underground coal gasification

SK De, V Prabu - International Journal of Hydrogen Energy, 2017 - Elsevier
Underground water present in aquifer has the tendency to encroach during underground
coal gasification (UCG) operation because of pressure reduction in the reservoir. The water …

[PDF][PDF] 煤炭地下气化的热环境下煤样内部构造变化及模型试验研究

苏发强, 于光磊, 高喜才, 范伟涛, 荆士杰, 浦海… - 煤炭学报, 2020 - mtxb.com.cn
煤炭地下气化(UCG) 是一种将煤炭资源低碳化利用的技术, 在中国的低碳经济下具有很好的前景
. 然而, 全球煤炭地下气化经历几十年的现场试验, 目前仍有许多待解决的问题 …