Chemistry: molecular biology and microbiology – Process of utilizing an enzyme or micro-organism to destroy... – Petroleum oil or shale oil treating
Patent
1997-01-10
1999-02-23
Paden, Carolyn
Chemistry: molecular biology and microbiology
Process of utilizing an enzyme or micro-organism to destroy...
Petroleum oil or shale oil treating
435262, C10C 300
Patent
active
058742948
ABSTRACT:
A simple and effective biochemical process solves the problems associated with sulfur in bitumen by removing sulfur from active participation in SO.sub.x -producing combustion reactions. In one aspect, an emulsion of bitumen and water is contacted with a microbiological desulfurization agent for a time and under conditions effective to reduce the oxidizable sulfur content of the bitumen. The preferred agents do not affect the heating value of the fuel, but selectively oxidize organic sulfur to water-soluble sulfates which can either be physically removed or chemically bound so that they do not cause SO.sub.x production. Multistage reaction is employed to enhance sulfur removal.
REFERENCES:
patent: 2521761 (1950-09-01), Strawinski
patent: 2574070 (1951-11-01), Strawinski
patent: 2641564 (1953-07-01), ZoBell
patent: 2975103 (1961-03-01), Kirshenbaum
patent: 4562156 (1985-12-01), Isbister et al.
patent: 4618348 (1986-10-01), Hayes et al.
patent: 4632906 (1986-12-01), Kopacz
patent: 4795478 (1989-01-01), Layrisse et al.
patent: 4808535 (1989-02-01), Isbister
patent: 4824439 (1989-04-01), Planco et al.
patent: 4851350 (1989-07-01), Stevens, Jr. et al.
patent: 4861723 (1989-08-01), Madgavkar
patent: 4886519 (1989-12-01), Hayes et al.
patent: 5002888 (1991-03-01), Kilbane, II
patent: 5104801 (1992-04-01), Kilbane, II
Andrews, et al, Biotechnol. Bioeng., 12, 337,1982.
Bhattacharyya, D., et al, "Bioprocessing of Coal and Fuel Compounds", Manuscript for Contractors Meeting, Pittsburg, Oct. 3-4, 1989. of Kentucky.
Kargi, F., et al, Biological Removal of Pyritic Sulfur from Coal by the Thermophilic Organism Sulfolobus acidoca-Idarius, Biotechnology and Bioengineering, vol. XXVII, pp. 41-49, 1985.
Kennedy, B.A. Evaluation of Handling and Combustion Characteristics of Orimulsion in a Commercial Utility Boiler, FACT, vol. 11, Fuel Strategies for Conventional and Unconventional Fuels, ASME 1991.
Kilbane, J., "Biodelsulfurization: Future Prospects in Coal Cleaning", Proceedings of 7th Annual International Pittsburgh Coal Conference, Sep. 10-14, 1990 pp. 373-382.
Kilbane, J., "Desulfurization of coal: the microbial solution", Trends in Biotechnology, Apr. 1989, vol. 7, No. 4, pp. 97-101.
Lee, K., et al, "Sulfur Removal from coal Through Multiphase Media containing Biocatalysts", J. Chem. Tech. Biotechnol., 1990, vol. 48, pp. 71-79.
Monticello, D., "Biocatalytic Desulfurizatiion", Hydrocarbon processing, Feb. 1994, pp. 39, 40, 42, 44, 45.
Monticello, D., "Microbial Desulfurization of Fossil Fuels", Ann, Rev. Microbio. 1985, vol. 39, pp. 371-389.
LandOfFree
Biodesulfurization of fuels does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Biodesulfurization of fuels, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Biodesulfurization of fuels will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-306091