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Title: Method for in situ biological conversion of coal to methane

Abstract

A method and apparatus are provided for the in situ biological conversion of coal to methane comprising culturing on a coal-containing substrate a consortium of microorganisms capable of degrading the coal into methane under suitable conditions. This consortium of microorganisms can be obtained from an underground cavity such as an abandoned mine which underwent a change from being supplied with sewage to where no sewage was present, since these conditions have favored the development of microorganisms capable of using coal as a carbon source and converting coal to methane. The consortium of microorganisms obtained from such abandoned coal mines can be isolated and introduced to hard-to-reach coal-containing substrates which lack such microorganisms and which would otherwise remain unrecoverable. The present invention comprises a significant advantage in that useable energy can be obtained from a number of abandoned mine sites or other areas wherein coal is no longer being recovered, and such energy can be obtained in a safe, efficient, and inexpensive manner.

Inventors:
 [1]
  1. (Pittsburgh, PA)
Issue Date:
Research Org.:
National Energy Technology Laboratory, Pittsburgh, PA, and Morgantown, WV
OSTI Identifier:
869924
Patent Number(s):
5424195
Assignee:
Secretary of Interior (Washington, DC) NETL
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; situ; biological; conversion; coal; methane; apparatus; provided; comprising; culturing; coal-containing; substrate; consortium; microorganisms; capable; degrading; suitable; conditions; obtained; underground; cavity; abandoned; mine; underwent; change; supplied; sewage; favored; carbon; source; converting; mines; isolated; introduced; hard-to-reach; substrates; lack; otherwise; remain; unrecoverable; comprises; significant; advantage; useable; energy; sites; recovered; safe; efficient; inexpensive; manner; carbon source; converting coal; significant advantage; suitable conditions; inexpensive manner; methane comprising; situ biological; coal mine; organisms capable; comprising cu; biological conversion; containing substrate; /435/

Citation Formats

Volkwein, Jon C. Method for in situ biological conversion of coal to methane. United States: N. p., 1995. Web.
Volkwein, Jon C. Method for in situ biological conversion of coal to methane. United States.
Volkwein, Jon C. Sun . "Method for in situ biological conversion of coal to methane". United States. https://www.osti.gov/servlets/purl/869924.
@article{osti_869924,
title = {Method for in situ biological conversion of coal to methane},
author = {Volkwein, Jon C.},
abstractNote = {A method and apparatus are provided for the in situ biological conversion of coal to methane comprising culturing on a coal-containing substrate a consortium of microorganisms capable of degrading the coal into methane under suitable conditions. This consortium of microorganisms can be obtained from an underground cavity such as an abandoned mine which underwent a change from being supplied with sewage to where no sewage was present, since these conditions have favored the development of microorganisms capable of using coal as a carbon source and converting coal to methane. The consortium of microorganisms obtained from such abandoned coal mines can be isolated and introduced to hard-to-reach coal-containing substrates which lack such microorganisms and which would otherwise remain unrecoverable. The present invention comprises a significant advantage in that useable energy can be obtained from a number of abandoned mine sites or other areas wherein coal is no longer being recovered, and such energy can be obtained in a safe, efficient, and inexpensive manner.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {1}
}

Patent:

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