Microbial production of methane and carbon dioxide from lignite, bituminous coal, and coal waste materials

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Publication Type Journal Article
School or College College of Engineering
Department Mechanical Engineering
Creator Adams, Daniel
Other Author Opara, A.; Free, M. L.; McLennan, J.; Hamilton, J.
Title Microbial production of methane and carbon dioxide from lignite, bituminous coal, and coal waste materials
Date 2012-01-01
Description The aim of this study was to examine microbial methane and CO2 production from bituminous coal waste, lignite, and bituminous coal materials. Bituminous coal and coal waste material were obtained from a Utah mine and lignite was obtained from a commercially available North Dakota sample. Microbial populations were cultured from hydrocarbon-rich environments and locations where natural methanogenesis was occurring. Various pulverized coal and coal waste materials were combined with selected microbial inocula and different types and levels of nutrient amendments. After a 30-day reaction period at about 23 °C, headspace methane and CO2 were analyzed using gas chromatography. With increasing nutrient concentrations (0, 10, and 50%), coal waste generated an extrapolated equivalent of 36, 53, and 16,000 scf of CH4/ton/year and 1870, 4400, and 8000 scf of CO2/ton/year. Methane produced from native and nutrient-amended bituminous coal waste materials was the same order of magnitude as that produced from bituminous coal but lower than that produced from lignite. CO2 generation from coal waste materials, with no nutrient addition was over twice as high as that produced from analogous bituminous coal. The results of this study suggest that coal waste products can be converted to useful fuel at volumes that may be commercially viable.
Type Text
Publisher Elsevier
Volume 96
First Page 1
Last Page 8
DOI http://dx.doi.org/DOI: 10.1016/j.coal.2012.02.010.
Dissertation Institution University of Utah
Language eng
Bibliographic Citation Opara, A., Adams, D. J., Free, M. L., McLennan, J., & Hamilton, J. (2012). Microbial production of methane and carbon dioxide from lignite, bituminous coal, and coal waste materials. International Journal of Coal Geology, 96, 1-8.
Rights Management (c) Elsevier
Format Medium application/pdf
Format Extent 1,618,097 bytes
Identifier uspace,17359
ARK ark:/87278/s676602x
Setname ir_uspace
Date Created 2012-07-30
Date Modified 2012-08-17
ID 707690
Reference URL https://collections.lib.utah.edu/ark:/87278/s676602x
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