Production of ethanol from refinery waste gases. Phase 2, technology development, annual report

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Description

Oil refineries discharge large volumes of H{sub 2}, CO, and CO{sub 2} from cracking, coking, and hydrotreating operations. This program seeks to develop a biological process for converting these waste gases into ethanol, which can be blended with gasoline to reduce emissions. Production of ethanol from all 194 US refineries would save 450 billion BTU annually, would reduce crude oil imports by 110 million barrels/year and emissions by 19 million tons/year. Phase II efforts has yielded at least 3 cultures (Clostridium ljungdahlii, Isolate O-52, Isolate C-01) which are able to produce commercially viable concentrations of ethanol from CO, CO{sub 2}, ... continued below

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65 p.

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Arora, D.; Basu, R.; Phillips, J.R.; Wikstrom, C.V.; Clausen, E.C. & Gaddy, J.L. July 1, 1995.

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Description

Oil refineries discharge large volumes of H{sub 2}, CO, and CO{sub 2} from cracking, coking, and hydrotreating operations. This program seeks to develop a biological process for converting these waste gases into ethanol, which can be blended with gasoline to reduce emissions. Production of ethanol from all 194 US refineries would save 450 billion BTU annually, would reduce crude oil imports by 110 million barrels/year and emissions by 19 million tons/year. Phase II efforts has yielded at least 3 cultures (Clostridium ljungdahlii, Isolate O-52, Isolate C-01) which are able to produce commercially viable concentrations of ethanol from CO, CO{sub 2}, and H{sub 2} in petroleum waste gas. Single continuous stirred tank reactor studies have shown that 15-20 g/L of ethanol can be produced, with less than 5 g/L acetic acid byproduct. Culture and reactor optimization in Phase III should yield even higher ethanol concentrations and minimal acetic acid. Product recovery studies showed that ethanol is best recovered in a multi-step process involving solvent extraction/distillation to azeotrope/azeotropic distillation or pervaporation, or direct distillation to the azeotrope/azeotropic distillation or pervaporation. Projections show that the ethanol facility for a typical refinery would require an investment of about $30 million, which would be returned in less than 2 years.

Physical Description

65 p.

Notes

OSTI as DE97006845

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  • Other Information: PBD: Jul 1995

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  • Other: DE97006845
  • Report No.: DOE/AL/98770--1
  • Grant Number: FC04-94AL98770
  • DOI: 10.2172/484646 | External Link
  • Office of Scientific & Technical Information Report Number: 484646
  • Archival Resource Key: ark:/67531/metadc684551

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • July 1, 1995

Added to The UNT Digital Library

  • July 25, 2015, 2:21 a.m.

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  • Nov. 13, 2015, 10:40 p.m.

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Arora, D.; Basu, R.; Phillips, J.R.; Wikstrom, C.V.; Clausen, E.C. & Gaddy, J.L. Production of ethanol from refinery waste gases. Phase 2, technology development, annual report, report, July 1, 1995; United States. (digital.library.unt.edu/ark:/67531/metadc684551/: accessed December 14, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.