Results 41 to 50 of about 2,864 (176)
MODELING OF MATERIAL BALANCE FROM THE EXPERIMENTAL UCG
Acta Polytechnica, 2020 The underground coal gasification is a continually evolving technology, which converts coal to calorific gas. There are many important parameters in this technology, which are difficult to measure.
Milan Durdán +4 more
doaj +1 more source
Quantitative Evaluation of Underground Coal Gasification Based on a CO2 Gasification Agent
Energies, 2023 Using carbon dioxide as a gasification agent for underground coal gasification (UCG) can not only reduce carbon dioxide emissions but is also expected to lead to a new natural gas technology revolution and ensure national energy security.
Hao Chen +7 more
doaj +1 more source
Prediction method of surface subsidence due to underground coal gasification under thermal coupling
Meitan kexue jishu, 2023 Underground coal gasification (UCG) is an essential part of the low-carbon green coal mining technology system. The implementation of the “double carbon” goal of the coal industry has brought excellent development opportunities for UCG. However, UCG will
Huaizhan LI +6 more
doaj +1 more source
CFD Simulation of Temperature Variation in Carboniferous Rock Strata During UCG
Journal of Sustainable Mining, 2013 The numerical simulation was based on the computational fluid dynamics formalism in order to identify the change of temperature in rock strata during underground coal gasification (UCG).
Tomasz Janoszek +2 more
doaj +1 more source
Eng, 2023 Underground coal gasification (UCG) is the process of directly recovering energy as combustible gases such as hydrogen and carbon monoxide by combusting unmined coal resources in situ.
Rika Iriguchi +8 more
doaj +1 more source
An Overview of the Chinese UCG Program
Data Science Journal, 2007 Coal is the dominant source of energy in China, but about 50% of the coal resource is left underground unmined. Because of this, the "long-tunnel, large section, two-stage" Underground Coal Gasification (UCG) technology has been put forward, and the UCG ...
Yulan Li, Xinxing Liang, Jie Liang
doaj +1 more source
Control of Combustion/Gasification Area with Compact Underground Coal Gasification System
Journal of MMIJ, 2018 Underground coal gasification (UCG), a technique used to recover coal energy by the in-situ conversion of coal into gaseous products, enables recovery of coal energy from the potential coal resources abandoned under the ground for either technical or ...
Akihiro HAMANAKA +6 more
doaj +1 more source
Microbial degradation of organic pollutants in groundwater related to underground coal gasification
Energy Science &Engineering, Volume 7, Issue 5, Page 2098-2111, October 2019., 2019 The relationship between TOC in gas washing water with time degraded by WX and JC at pH = 7, 40°C, and 120 rpm. Two kinds of bacteria with high phenol degradation efficiency, named JC and WX, were isolated and screened from two types of activated sludges, and correspondingly identified as pseudomonas aeruginosa (NCBI number: Z76651) and achromobacter ...
Lunjian Chen +7 more
wiley +1 more source
Influence of coal properties on the CO2 adsorption capacity of coal gasification residues
Energy Science &Engineering, Volume 6, Issue 4, Page 321-335, August 2018., 2018 Influence of coal properties and gasification conditions on the adsorption capacities of CO2 on gasified coal chars is investigated. Four coals of diverse rank varying from lignite to bituminous were selected and subjected to CO2 gasification at atmospheric pressure for 10 min at 800, 900, and 1000°C under a low heating rate of 5°C/min. The CO2 storage
Pramod Sripada +4 more
wiley +1 more source
Acta Polytechnica, 2019 Underground coal gasification (UCG) is a technological process, which converts solid coal into a gas in the underground, using injected gasification agents.
Ján Kačur +3 more
doaj +1 more source