Underground Coal Gasification Field Experiment in the High-dipping Coal Seams

In this article the experimental conditions and process of the underground gasification in the Woniushan Mine, Xuzhou, Jiangsu Province are introduced, and the experimental results are analyzed. By adopting the new method of long-channel, big-section, and two-stage underground coal gasification, the...

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Published inEnergy sources. Part A, Recovery, utilization, and environmental effects Vol. 31; no. 10; pp. 854 - 862
Main Authors Yang, L. H., Liu, S. Q., Yu, L., Zhang, W.
Format Journal Article
LanguageEnglish
Published United States Taylor & Francis Group 01.01.2009
Subjects
01 COAL, LIGNITE, AND PEAT
CALORIFIC VALUE
CHINA
COAL GASIFICATION
COAL MINES
COAL SEAMS
counter gasification
EFFICIENCY
high-dipping coal seams
IN-SITU GASIFICATION
INCLINED STRATA
long-channel big-section
SYNTHESIS GAS
two-stage
underground coal gasification
WATER GAS
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Summary:In this article the experimental conditions and process of the underground gasification in the Woniushan Mine, Xuzhou, Jiangsu Province are introduced, and the experimental results are analyzed. By adopting the new method of long-channel, big-section, and two-stage underground coal gasification, the daily gas production reaches about 36,000 m 3 , with the maximum output of 103,700 m 3 . The daily average heating value of air gas is 5.04 MJ/m 3 , with 13.57 MJ/m 3 for water gas. In combustible compositions of water gas, H 2 contents stand at over 50%, with both CO and CH 4 contents over 6%. Experimental results show that the counter gasification can form new temperature conditions and increase the gasification efficiency of coal seams.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1556-7036
1556-7230
DOI:10.1080/15567030801901588