Biological conversion of synthesis gas. Topical report: Bioreactor studies
The purpose of the proposed research is to develop a technically and economically feasible process for biologically producing H{sub 2} from synthesis gas while, at the same time, removing harmful sulfur gas compounds. Six major tasks are being studied: culture development, where the best cultures are selected and conditions optimized for simultaneous hydrogen production and sulfur gas removal; mass transfer and kinetic studies in which equations necessary for process design are developed; bioreactor design studies, where the cultures chosen in Task 1 are utilized in continuous reaction vessels to demonstrate process feasibility and define operating conditions; evaluation of biological synthesis gas conversion under limiting conditions in preparation for industrial demonstration studies; process scale-up where laboratory data are scaled to larger-size units in preparation for process demonstration in a pilot-scale unit; and economic evaluation, where process simulations are used to project process economics and identify high cost areas during sensitivity analyses. The purpose of this report is to present results from bioreactor studies involving H{sub 2} production by water gas shift and H{sub 2}S removal to produce elemental sulfur. Many of the results for H{sub 2} production by Rhodospirillum rubrum have been presented during earlier contracts. Thus, this report concentrates mainly on H{sub 2}S conversion to elemental sulfur by R. rubrum.
- Research Organization:
- Arkansas Univ., Fayetteville, AR (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG21-90MC27225
- OSTI ID:
- 10122053
- Report Number(s):
- DOE/MC/27225-3644; ON: DE94006488; BR: AA8575000; TRN: AHC29404%%12
- Resource Relation:
- Other Information: PBD: Sep 1993
- Country of Publication:
- United States
- Language:
- English
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Biological conversion of synthesis gas: Quarterly report [No. 3-4, July 1, 1993--September 3, 1993]
Biological conversion of synthesis gas. Limiting conditions/scale-up
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01 COAL, LIGNITE, AND PEAT
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
HYDROGEN SULFIDES
BIODEGRADATION
RHODOSPIRILLUM
BATCH CULTURE
CONTINUOUS CULTURE
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HYDROGEN PRODUCTION
EXPERIMENTAL DATA
COAL GASIFICATION
080106
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BIOSYNTHESIS AND PHOTOCHEMICAL PROCESSES
PURIFICATION AND UPGRADING
CHEMICALS METABOLISM AND TOXICOLOGY