Characterization and subsequent utilization of microbially solubilized coal: Preliminary studies
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6244680
- Report Number(s):
- CONF-890582-1; ON: DE89011577
- 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
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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