Pyrolysis and gasification modelling of underground coal gasification and the optimisation of CO2 as a gasification agent

TH Duan, CP Lu, S Xiong, ZB Fu, YZ Chen - Fuel, 2016 - Elsevier
In the underground coal gasification (UCG) process, a feasible method for the reduction of
CO 2 emissions is to capture the CO 2 present in syngas and reinject it as one of the …

Experimental study on the impact of reactant gas pressure in the conversion of coal char to combustible gas products in the context of Underground Coal Gasification

E Konstantinou, R Marsh - Fuel, 2015 - Elsevier
This paper describes an experimental investigation to determine the impact of pressurised
reactor conditions within the reduction zone of a gasification process employing a semi …

Synthesis gas composition prediction for underground coal gasification using a thermochemical equilibrium modeling approach

C Otto, T Kempka - Energies, 2020 - mdpi.com
Underground coal gasification (UCG) is an in situ conversion technique that enables the
production of high-calorific synthesis gas from resources that are economically not minable …

Technical application of safety and cleaner production technology by underground coal gasification in China

J Xie, L Xin, X Hu, W Cheng, W Liu, Z Wang - Journal of Cleaner Production, 2020 - Elsevier
A new residual coal gasification mining system is proposed to utilize in-situ residual coal,
mine water, and carbon dioxide for clean combustible gas production. Based on the …

Energy and exergy analysis of alternating injection of oxygen and steam in the low emission underground gasification of deep thin coal

AA Eftekhari, KH Wolf, J Rogut, H Bruining - Applied Energy, 2017 - Elsevier
Recent studies have shown that by coupling the underground coal gasification (UCG) with
the carbon capture and storage (CCS), the coal energy can be economically extracted with a …

Analysis of syngas production and reaction zones in hydrogen oriented underground coal gasification

M Gür, ED Canbaz - Fuel, 2020 - Elsevier
Abstract Underground Coal Gasification (UCG) is an emerging technology that utilizes
unmined coals. In UCG process, coal is burned and gasified underground. Produced syngas …

Effect of injection flow rate on product gas quality in underground coal gasification (UCG) based on laboratory scale experiment: development of co-axial UCG system

A Hamanaka, F Su, K Itakura, K Takahashi, J Kodama… - energies, 2017 - mdpi.com
Underground coal gasification (UCG) is a technique to recover coal energy without mining
by converting coal into a valuable gas. Model UCG experiments on a laboratory scale were …

Modeling of gasification process of Indian coal in perspective of underground coal gasification (UCG)

RN Mandapati, P Ghodke - Environment, development and sustainability, 2020 - Springer
In the present study, the steam gasification of Indian coal and its demineralized coal were
investigated in a specially designed fixed-bed reactor, to determine the intrinsic kinetics …

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 …

Method of oxygen-enriched two-stage underground coal gasification

L Hongtao, C Feng, P Xia, Y Kai, L Shuqin - Mining Science and …, 2011 - Elsevier
Two-stage underground coal gasification was studied to improve the caloric value of the
syngas and to extend gas production times. A model test using the oxygen-enriched two …