Microbial process for the mitigation of sulfur compounds from na

Details Microbial process for the mitigation of sulfur compounds from na Microbial process for the mitigation of sulfur compounds from na

1996-05-20

1999-11-09

Lankford, Jr., Leon B.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Treating gas, emulsion, or foam

435262, 435822, A61L 901, C12N 100

Patent

active

059812664

ABSTRACT:
An anaerobic process of desulfurizing a sour natural gas stream wherein a selected consortium of chemoautotrophic bacteria converts H.sub.2 S and other sulfur species into elemental sulfur, which is recovered as a product. The process is conducted at pressures of up to 1000 psi and temperatures up to 140.degree. F. (10.degree. C. to 60.degree. C.), and mitigates up to 10,000 ppm H.sub.2 S to pipeline standards of .ltoreq.4 ppm and up to 10% CO.sub.2 to .ltoreq.2% CO.sub.2.

REFERENCES:
patent: 1701825 (1929-02-01), Seil
patent: 4242448 (1980-12-01), Brown, III
patent: 4666852 (1987-05-01), Cork
patent: 4758417 (1988-07-01), van Lookerren-Campagne et al.
patent: 4760027 (1988-07-01), Sublette
patent: 4880542 (1989-11-01), Sublette
patent: 4931262 (1990-06-01), Sonta et al.
patent: 4968622 (1990-11-01), Berzaczy et al.
patent: 4971151 (1990-11-01), Sheehy
patent: 5044435 (1991-09-01), Sperl et al.
patent: 5077208 (1991-12-01), Sublette
patent: 5217615 (1993-06-01), Tyagi et al.
patent: 5232676 (1993-08-01), Wolff et al.
patent: 5236677 (1993-08-01), Torres-Cardona et al.
patent: 5250102 (1993-10-01), Barnes et al.
patent: 5297625 (1994-03-01), Premuzic et al.
patent: 5354545 (1994-10-01), Buisman
patent: 5385842 (1995-01-01), Weimer et al.
Aerobic Oxidation of Hydrogen Sulfide by Thiobacillus Denitrificans, K. Sublette, Biotechnology and Bioengineering, vol. XXIX, pp. 690-695, (1987).
Biological Removal of H.sub.2 S From Sour Natural Gas, K. Srivastava, Oct. 1992 GRI Liquid Redox Sulfur Recovery Conference, pp. 129, 131-145.
Optimization of Sulp[hur Production in a Biotechnological Sulphide-Removing Reactor, Buisman, et al., Biotechnology and Bioengineering, vol. 35, pp. 50-56, (1990).
Microbial Control of the Production of Hydrogen Sulfide by Sulfate-Reducing Bacteria, Montgomery et al., Biotechnology and Bioengineering, vol. 35, pp. 533-539, (1990).
Microbial Desulfurization of Gases, Sublette et al., Biotechnology and Bioengineering Symp. No. 17 (1986), pp. 543-564.
Microbial Reduction of Sulfur Dioxide with Pretreated Sewage Sludge and Elemental Hydrogen as Electron Donors, Deshmane, et al., Applied Biochemistry and Biotechnology, vol. 39/40, (1993), pp. 739-752.
Microbial Removal of Sulfur Dioxide from a Gas Stream with Net Oxidation to Sulfate, Dasu et al., Applied Biochemistry and Biotechnology, vol. 20/21, (1989), pp. 207-220.
Oxidation of Hydrogen Sulfide by Flocculated Thiobaccillus Dentrificans in a Continuous Culture, Biotechnology and Bioengineering, vol. 37, (1991) pp. 497-504.
Oxidation of Hydrogen Sulfide by Mixed Cultures of Thiobacillus Dentrificans and Heterotrophs, Sublette et al., Biotechnology and Bioengineering, vol. XXIX, (1987) 759-761.
Oxidation of Hydrogen Sulfide by Thiobacilli, Cadenhead et al., Biotechnology and Bioengineering, vol. 35, (1990) pp. 1150-1154.
Oxidation of Hydrogen Sulfide by Thiobacillus Dentrificans: Desulfurization of Natural Gas, Biotechnology and Bioengineering, vol. XXIX, (1987) pp. 249-257.
Production of Microbial Biomass Protein from Autotrophic Fermentation of Hydrogen Sulfide, Sublette, Biotechnology and Bioengineering, vol. 32, (1988) pp. 408-409.
Reduction of Sulfur Dioxide by Desulfovibrio Desulfuricans in Co-culture with Fermentative Heterotrophs, Dasu et al., Biotechnology and Bioengineering, vol. 34, (1989) pp. 405-409.
Removal Kinetics of Hydrogen Sulfide,Methanethiol and Dimethyl Sulfide by Peat Biofilters, Hirai et al., Journal of Fermentation and Bioengineering, vol. 70, No. 5, (1990) 334-339.
Immobilization of an Autotrophic Bacterium by Coculture with Floc-Forming Heterotrophs, Ongcharit, et al., Biotechnology and Bioengineering, vol. 33, (1989), pp. 1077-1080.
Immobilization of Thiobacillus Denitrificans for the Oxidation of Hydrogen Sulfide in Sour Water, Applied Biochemistry and Biotechnology, vol. 20/21 (1989) pp. 675-686.
Kinetics of Chemical and Biological Sulfide Oxidation in Aqueous Solutions, Buisman, et al. (1990). *(not included).
Biotechnological Process for Sulfide Removal with Sulfur Reclamation, Buisman, et al., ACTA Biotechnology, vol. 9, pp. 255-267, (1990). *(not included).

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