Experimental study of shaftless underground gasification in thin high-angle coal seams

L Yang, S Liu, L Yu, J Liang - Energy & fuels, 2007 - ACS Publications
The purpose of this article is to study the feasibility of shaftless underground gasification in
thin high-angle coal seams and the reliability of a new two-stage technique for pushing …

Kinetic model and prediction for coal hydrogasification

L Yan, B He, X Pei, X Li, C Wang, H Liang - International journal of …, 2013 - Elsevier
Coal hydrogasification is a key component of zero emission coal (ZEC) power generation
system which discharges little CO2 and other pollutants at a thermal efficiency close to 70 …

CFD simulation of underground coal gasification

AS Shirazi - Masters Abstracts International, 2012 - library-archives.canada.ca
Abstract<? Pub Inc> Underground Coal Gasification (UCG) is a process in which coal is
converted to syngas in-situ. UCG has gained popularity recently as it could be used to …

Numerical simulation of UCG process with the aim of increasing calorific value of syngas

A Jowkar, F Sereshki, M Najafi - International Journal of Coal Science & …, 2020 - Springer
The determination of operational parameters in the underground coal gasification (UCG)
process should be considered in two aspects: first, the total coal in each UCG panel must be …

Production of middle caloric fuel gas from coal by dual-bed gasification technology

Y Wang, W Dong, L Dong, J Yue, S Gao, T Suda… - Energy & …, 2010 - ACS Publications
A coal gasification technology for producing middle caloric fuel gas using granular coal is
urgently required in China considering the huge energy demand required for project …

Coal-gasification kinetics derived from pyrolysis in a fluidized-bed reactor

JM Lee, YJ Kim, WJ Lee, SD Kim - Energy, 1998 - Elsevier
Coal pyrolysis and gasification reactions were carried out in a fluidized-bed reactor (0.1 m id
by 1.6 m height) over a temperature range from 1023 to 1173K at atmospheric pressure. The …

Experimental results of underground coal gasification of Turkish lignite in an ex-situ reactor

M Gur, N Eskin, H Okutan, A Arısoy, E Böke, Ü Altıntaş… - Fuel, 2017 - Elsevier
In this study the characteristics of Turkish lignite for underground coal gasification process
was experimentally investigated in a laboratory scale ex situ reactor. A rectangular prism …

Two-stage gasification process simulation and optimization of pulverized coal for hydrogen-rich production using Aspen plus

B Zhou, J Chang, J Li, J Hong, T Wang, Z Zhu… - International Journal of …, 2024 - Elsevier
This study proposed a two-stage gasification (TSG) process of pulverized coal to allow for
hydrogen-rich (HR) production. The balance flow of this process is constructed using Aspen …

Methane formation mechanism during pressurized pyrolysis of coal core in the context of deep underground coal gasification

M Niu, R Wang, W Ma, W Guo, H Liu, S Liu - Fuel, 2022 - Elsevier
Deep underground coal gasification (UCG) is characterized by high reaction pressure
(dependent on hydrostatic pressure of coal seam) and high CH 4 content. The formation …

High-temperature air/steam-blown gasification of coal in a pressurized spout-fluid bed

R Xiao, M Zhang, B Jin, Y Huang, H Zhou - Energy & Fuels, 2006 - ACS Publications
The concept of high-temperature air/steam-blown gasification technology for converting coal
into low-caloric-value gas for power generation is proposed and evaluated experimentally …