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Permanent link (DOI): https://doi.org/10.7939/R3PG1HW9G

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Comprehensive Study of the Bioconversion of Coal Using Laboratory Core Flooding Experiments Open Access

Descriptions

Other title
Subject/Keyword
methane
coal
bioconversion
core flooding
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Stephen, Anil
Supervisor and department
Mitra, Sushanta (Mechanical Engineering)
Nobes, David (Mechanical Engineering)
Examining committee member and department
Zeng, Hongbo (Chemical and Materials Engineering)
Mitra, Sushanta (Mechanical Engineering)
Nobes, David (Mechanical Engineering)
Department
Department of Mechanical Engineering
Specialization

Date accepted
2014-01-31T13:13:50Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
Core flooding experiments were performed to understand in-situ coal bioconversion process. Subbituminous coal particles packed inside a biaxial core holder was inoculated with microbial culture and was continuously flooded with mineral salts medium and nitrogen rich nutrient solution. Colonization and conversion of coal by microbes was evident from the presence of metabolites and gases in the effluent. The identification of signature metabolites of anaerobic bioconversion of hydrocarbons shows fermentative microbes are able to convert the complex coal over a period of time to simple molecules such as acetic acid, which is a substrate for methanogenesis. Presence of succinic acid in the effluent, suggests that the coal bioconversion process can be used for extraction of other value-added product apart from CH4 generation. The results presented here indicate that the coal bioconversion by biostimulation at reservoir conditions is a scalable technology with great potential to reduce overall greenhouse gas emission.
Language
English
DOI
doi:10.7939/R3PG1HW9G
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
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