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Biological conversion of coal synthesis gas to methane

Journal Article:

Abstract

High temperatures and pressures are required, and therefore, high costs incurred during catalytic upgrading of coal synthesis gas to methane. Thus, the feasibility of biological reactions in converting synthesis gas to methane has been demonstrated in mixed and pure cultures. Complete conversion has been achieved in 2 hours with a mixed culture, and 45 minutes to 1.5 hours in pure cultures of P. productus and Methanothrix sp.. Typical sulfur levels involved during the process are found not to inhibit the bacteria and so sulfur does not have to be removed prior to biomethanation. Preliminary economic analyses indicate that coal gas may be biologically methanated for 50-60 cents/million Btu. Further studies with pure culture bacteria and increased pressure are expected to enhance biomethanation economics.
Publication Date:
Sep 01, 1987
Product Type:
Journal Article
Reference Number:
CLA-88-020730; EDB-88-024484
Resource Relation:
Journal Name: Energy Prog.; (United States); Journal Volume: 7:3
Subject:
01 COAL, LIGNITE, AND PEAT; SYNTHESIS GAS; BIOCONVERSION; METHANATION; BACTERIA; ECONOMIC ANALYSIS; METHANE; SULFUR CONTENT; ALKANES; CHEMICAL REACTIONS; ECONOMICS; FLUIDS; GASES; HYDROCARBONS; MICROORGANISMS; ORGANIC COMPOUNDS; 010408* - Coal, Lignite, & Peat- C1 Processes- (1987-)
OSTI ID:
5704004
Research Organizations:
University of Arkansas, Fayetteville (USA). Dept. of Chemical Engineering
Country of Origin:
United States
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: ENPGD
Submitting Site:
CLA
Size:
Pages: 157-160
Announcement Date:
Feb 01, 1988

Journal Article:

Citation Formats

Barik, S, Corder, R E, Clausen, E C, and Gaddy, J L. Biological conversion of coal synthesis gas to methane. United States: N. p., 1987. Web.
Barik, S, Corder, R E, Clausen, E C, & Gaddy, J L. Biological conversion of coal synthesis gas to methane. United States.
Barik, S, Corder, R E, Clausen, E C, and Gaddy, J L. 1987. "Biological conversion of coal synthesis gas to methane." United States.
@misc{etde_5704004,
title = {Biological conversion of coal synthesis gas to methane}
author = {Barik, S, Corder, R E, Clausen, E C, and Gaddy, J L}
abstractNote = {High temperatures and pressures are required, and therefore, high costs incurred during catalytic upgrading of coal synthesis gas to methane. Thus, the feasibility of biological reactions in converting synthesis gas to methane has been demonstrated in mixed and pure cultures. Complete conversion has been achieved in 2 hours with a mixed culture, and 45 minutes to 1.5 hours in pure cultures of P. productus and Methanothrix sp.. Typical sulfur levels involved during the process are found not to inhibit the bacteria and so sulfur does not have to be removed prior to biomethanation. Preliminary economic analyses indicate that coal gas may be biologically methanated for 50-60 cents/million Btu. Further studies with pure culture bacteria and increased pressure are expected to enhance biomethanation economics.}
journal = {Energy Prog.; (United States)}
volume = {7:3}
journal type = {AC}
place = {United States}
year = {1987}
month = {Sep}
}