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Title: Characterization and subsequent utilization of microbially solubilized coal: Preliminary studies

Abstract

The solubilization of low-ranked coals by fungi, such as Paecilomyces and Candida, in defined submerged culture systems has been demonstrated. Current efforts focus on the characterization of the aqueous solubilized coal products and the development of technologies for their subsequent utilization. Solubilized coal products have been fractionated, and preliminary characterizations performed. Differences in product composition have been detected with respect to the organism used in culture duration. Prospects for the conversion of the aerobically-solubilized coal into less-oxidized products have been developed which can remain active and viable in the presence of the aqueous coal product or vanillin, a coal model compound. The results suggest that a methanogenic consortium was able to produce methane and carbon dioxide from the product of coal biosolubilization by Paecilomyces as a sole carbon source. Work continues on the development of cultures able to convert the aqueous coal product and its various fractions into methane or fuel alcohols. 17 refs., 8 figs.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Oak Ridge National Lab., TN (USA)
OSTI Identifier:
6244680
Report Number(s):
CONF-890582-1
ON: DE89011577
DOE Contract Number:
AC05-84OR21400
Resource Type:
Conference
Resource Relation:
Conference: Biological processing of coal and coal-derived substances, Palo Alto, CA, USA, 16 May 1989; Other Information: Portions of this document are illegible in microfiche products
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; 59 BASIC BIOLOGICAL SCIENCES; METHANE; SYNTHESIS; SUBBITUMINOUS COAL; BIOCONVERSION; AEROBIC CONDITIONS; ANAEROBIC CONDITIONS; CANDIDA; CULTURE MEDIA; FRACTIONATION; FUNGI; MOLECULAR WEIGHT; SOLUBILITY; YIELDS; ALKANES; CARBONACEOUS MATERIALS; COAL; ENERGY SOURCES; EUMYCOTA; FOSSIL FUELS; FUELS; HYDROCARBONS; MATERIALS; MICROORGANISMS; ORGANIC COMPOUNDS; PLANTS; SEPARATION PROCESSES; YEASTS; 010405* - Coal, Lignite, & Peat- Hydrogenation & Liquefaction; 550700 - Microbiology

Citation Formats

Davison, B.H., Nicklaus, D.M., Woodward, C.A., Lewis, S.N., and Faison, B.D.. Characterization and subsequent utilization of microbially solubilized coal: Preliminary studies. United States: N. p., 1989. Web.
Davison, B.H., Nicklaus, D.M., Woodward, C.A., Lewis, S.N., & Faison, B.D.. Characterization and subsequent utilization of microbially solubilized coal: Preliminary studies. United States.
Davison, B.H., Nicklaus, D.M., Woodward, C.A., Lewis, S.N., and Faison, B.D.. 1989. "Characterization and subsequent utilization of microbially solubilized coal: Preliminary studies". United States. doi:.
@article{osti_6244680,
title = {Characterization and subsequent utilization of microbially solubilized coal: Preliminary studies},
author = {Davison, B.H. and Nicklaus, D.M. and Woodward, C.A. and Lewis, S.N. and Faison, B.D.},
abstractNote = {The solubilization of low-ranked coals by fungi, such as Paecilomyces and Candida, in defined submerged culture systems has been demonstrated. Current efforts focus on the characterization of the aqueous solubilized coal products and the development of technologies for their subsequent utilization. Solubilized coal products have been fractionated, and preliminary characterizations performed. Differences in product composition have been detected with respect to the organism used in culture duration. Prospects for the conversion of the aerobically-solubilized coal into less-oxidized products have been developed which can remain active and viable in the presence of the aqueous coal product or vanillin, a coal model compound. The results suggest that a methanogenic consortium was able to produce methane and carbon dioxide from the product of coal biosolubilization by Paecilomyces as a sole carbon source. Work continues on the development of cultures able to convert the aqueous coal product and its various fractions into methane or fuel alcohols. 17 refs., 8 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1989,
month = 1
}

Conference:
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  • From the characterization of the hydrolytically solubilized coal with glycols the following observations can be made: (1) The polycyclic aromatic rings are being reduced. A possible mechanism is hydride transfer from the solvent. Also oxygen heteroaromatics are destroyed. (2) Arylalkyl ethers are being cleaved by this process. (3) The ability of the glycols to chelate the positive alkali metal ion could contribute to the enhanced yields of soluble coal compared to other protic solvents. This study demonstrated the utility of using a multi-pronged analytical and chemical approach to the study of non-volatile coal products. 5 figures, 3 tables.
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