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Bioconversion Of Coal Derived Synthesis Gas To Liquid Fuels Final Technical Report September 1 1990 August 31 1991
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Book Synopsis Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. Final Technical Report, September 1, 1990--August 31, 1991 by :
Download or read book Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. Final Technical Report, September 1, 1990--August 31, 1991 written by and published by . This book was released on 1991 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of coal-derived synthesis gas as an industrial feedstock for production of fuels and chemicals has become an increasingly attractive alternative to present petroleum-based chemicals production. However, one of the major limitations in developing such a process is the required removal of catalyst poisons such as hydrogen sulfide (H2S), carbonyl sulfide (COS), and other trace contaminants from the synthesis gas. Purification steps necessary to remove these are energy intensive and add significantly to the production cost, particularly for coals having a high sulfur content such as Illinois coal. A two-stage, anaerobic bioconversion process requiring little or no sulfur removal is proposed, where in the first stage the carbon monoxide (CO) gas is converted to butyric and acetic acids by the CO strain of Butyribacterium methylotrophicum. In the second stage, these acids along with the hydrogen (H2) gas are converted to butanol, ethanol, and acetone by an acid utilizing mutant of Clostridium acetobutylicum. 18 figs., 18 tabs.
Download or read book Energy Research Abstracts written by and published by . This book was released on 1994-05 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. Final Report, September 29, 1992-December 27, 1994 by :
Download or read book Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. Final Report, September 29, 1992-December 27, 1994 written by and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels. Final Quarterly Technical Progress Report, July 1, 1993--September 30, 1993 by :
Download or read book Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels. Final Quarterly Technical Progress Report, July 1, 1993--September 30, 1993 written by and published by . This book was released on 1993 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the project is to develop an integrated two stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: (1) development/isolation of superior strains for fermentation of syngas, (2) optimization of process conditions for fermentation of syngas, (3) evaluation of bioreactor configuration for improved mass transfer of syngas, (4) development of a membrane-based pervaporation system, (5) optimization of process conditions for reducing carbon and electron loss by H2-CO2 fermentation, and (6) synthesis gas fermentation in single-stage by co-culture. Progress is reported in isolation of CO utilizing anaerobic strains; investigating the product profile for the fermentation of syngas by B. methylotrophicum; and determining the effect of carbon monoxide on growth of C. acetobutylicum.
Book Synopsis Government Reports Annual Index by :
Download or read book Government Reports Annual Index written by and published by . This book was released on 1992 with total page 1128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels. Quarterly Technical Progress Report, January 1, 1994--March 31, 1994 by :
Download or read book Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels. Quarterly Technical Progress Report, January 1, 1994--March 31, 1994 written by and published by . This book was released on 1994 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the project is to develop an integrated two-stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first steps, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol.
Book Synopsis Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. Annual Report, September 29, 1992--September 28, 1993 by :
Download or read book Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. Annual Report, September 29, 1992--September 28, 1993 written by and published by . This book was released on 1993 with total page 33 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the project is to develop and optimize a two-stage fermentation process for the conversion of coal derived synthesis gas in an mixture of alcohols. The goals include the development of superior strains with high product tolerance and productivity, optimization of process conditions for high volumetric productivity and product concentrations, integration and optimization of two stage syngas fermentation, evaluation of bioreactor configurations for enhanced mass transfer, evaluation of syngas conversion by a culture of Butyribacterium methyltrophicum and Clostridium acetobutylicum, development of a membrane based pervaporation system for in situ removal of alcohols, and development of a process for reduction of carbon and electron loss. The specific goals for year one (September 1992 - September 1993) were (1) development of a project work plan, (2) development of superior CO-utilizing strains, (3) optimization of process conditions for conversion of synthesis gas to a mixture of acids in a continuously stirred reactor (CSTR), (4) evaluation of different bioreactor configurations for maximization of mass transfer of synthesis gas, (5) development of a membrane based pervaporation system, and (6) reduction of carbon and electron loss via H2CO2 fermentation. Experimentation and progress toward these goals are described in this report.
Book Synopsis Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels. Quarterly Technical Progress Report, 1 April--30 June 1994 by :
Download or read book Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels. Quarterly Technical Progress Report, 1 April--30 June 1994 written by and published by . This book was released on 1994 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of the project is to develop an integrated two-stage fermentation process for conversion of coal-derived synthesis gas to a mixture of alcohols. This is achieved in two steps. In the first step, Butyribacterium methylotrophicum converts carbon monoxide (CO) to butyric and acetic acids. Subsequent fermentation of the acids by Clostridium acetobutylicum leads to the production of butanol and ethanol. The tasks for this quarter were: development/isolation of superior strains for fermentation of syngas; evaluation of bioreactor configuration for improved mass transfer of syngas; recovery of carbon and electrons from H2-CO2; initiation of pervaporation for recovery of solvents; and selection of solid support material for trickle-bed fermentation. Technical progress included the following. Butyrate production was enhanced during H2/CO2 (50/50) batch fermentation. Isolation of CO-utilizing anaerobic strains is in progress. Pressure (15 psig) fermentation was evaluated as a means of increasing CO availability. Polyurethane foam packing material was selected for trickle bed solid support. Cell recycle fermentation on syngas operated for 3 months. Acetate was the primary product at pH 6.8. Trickle bed and gas lift fermentor designs were modified after initial water testing. Pervaporation system was constructed. No alcohol selectivity was shown with the existing membranes during initial start-up.
Book Synopsis Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels by :
Download or read book Bioconversion of Coal Derived Synthesis Gas to Liquid Fuels written by and published by . This book was released on 1994 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1995 with total page 1774 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. [Butyribacterium Methylotrophicum]. by :
Download or read book Bioconversion of Coal-derived Synthesis Gas to Liquid Fuels. [Butyribacterium Methylotrophicum]. written by and published by . This book was released on 1991 with total page 35 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of coal-derived synthesis gas as an industrial feedstock for production of fuels and chemicals has become an increasingly attractive alternative to present petroleum-based chemicals production. However, one of the major limitations in developing such a process is the required removal of catalyst poisons such as hydrogen sulfide (H2S), carbonyl sulfide (COS), and other trace contaminants from the synthesis gas. Purification steps necessary to remove these are energy intensive and add significantly to the production cost, particularly for coals having a high sulfur content such as Illinois coal. A two-stage, anaerobic bioconversion process requiring little or no sulfur removal is proposed, where in the first stage the carbon monoxide (CO) gas is converted to butyric and acetic acids by the CO strain of Butyribacterium methylotrophicum. In the second stage, these acids along with the hydrogen (H2) gas are converted to butanol, ethanol, and acetone by an acid utilizing mutant of Clostridium acetobutylicum. 18 figs., 18 tabs.
Book Synopsis The synthetic liquid fuel potential ... by : Ford, Bacon, and Davis
Download or read book The synthetic liquid fuel potential ... written by Ford, Bacon, and Davis and published by . This book was released on 1950 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Coal Abstracts written by and published by . This book was released on 1991 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthetic Liquid Fuels Abstracts by :
Download or read book Synthetic Liquid Fuels Abstracts written by and published by . This book was released on 1948 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Economical Production of Alcohol Fuels from Coal-derived Synthesis Gas. Quarterly Technical Progress Report Number 17, September 1, 1995--December 31, 1995 by :
Download or read book The Economical Production of Alcohol Fuels from Coal-derived Synthesis Gas. Quarterly Technical Progress Report Number 17, September 1, 1995--December 31, 1995 written by and published by . This book was released on 1996 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: During this reporting period, there were three major thrusts in the WVU portion. First, we started a preliminary investigation on the use of a membrane reactor for HAS. Accordingly, the plug-flow reactor which had been isolated from sulfides was substituted by a membrane reactor. The tubular membrane was first characterized in terms of its permeation properties, i.e., the fluxes, permeances and selectivities of the components. After that, a BASF methanol-synthesis catalyst was tested under different conditions on the membrane reactor. The results will be compared with those from a non-permeable stainless steel tubular reactor under the same conditions. Second, we started a detailed study of one of the catalysts tested during the screening runs. Accordingly, a carbon-supported potassium-doped molybdenum-cobalt catalyst was selected to be run in the Rotoberty reactor. Finally, we have started detailed analyses of reaction products from some earlier screening runs in which non-sulfide molybdenum-based catalysts were employed and much more complicated product distributions were generally observed. These products could not hitherto be analyzed using the gas chromatograph which was then available. A Varian gas chromatograph/mass spectrometer (GC/MS) is being used to characterize these liquid products. At UCC, we completed a screening of an Engelhard support impregnated with copper and cesium. We have met or exceeded three of four catalyst development targets. Oxygenate selectivity is our main hurdle. Further, we tested the effect of replacing stainless-steel reactor preheater tubing and fittings with titanium ones. We had hoped to reduce the yield of hydrocarbons which may have been produced at high temperatures due to Fischer-Tropsch catalysis with the iron and nickel in the preheater tube walls. Results showed that total hydrocarbon space time yield was actually increased with the titanium preheater, while total alcohol space time yield was not significantly affected.
Book Synopsis Synthetic Liquid Fuel Potential of ...: Colorado, Text by : United States Engineers Corps (Army).
Download or read book Synthetic Liquid Fuel Potential of ...: Colorado, Text written by United States Engineers Corps (Army). and published by . This book was released on 1950 with total page 510 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Biological Upgrading of Coal-derived Synthesis Gas by :
Download or read book Biological Upgrading of Coal-derived Synthesis Gas written by and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The technical feasibility of the biological conversion of coal synthesis gas to methane has been demonstrated in the University of Arkansas laboratories. Cultures of microorganisms have been developed which achieve total conversion in the water gas shift and methanation reactions in either mixed or pure cultures. These cultures carry out these conversions at ordinary temperatures and pressures, without sulfur toxicity. Several microorganisms have been identified as having commercial potential for producing methane. These include a mixed culture of unidentified bacteria; P. productus which produces acetate, a methane precursor; and Methanothrix sp., which produces methane from acetate. These cultures have been used in mixed reactors and immobilized cell reactors to achieve total CO and H2 conversion in a retention time of less than two hours, quite good for a biological reactor. Preliminary economic projections indicate that a biological methanation plant with a size of 5 x 101° Btu/day can be economically attractive. 42 refs., 26 figs., 86 tabs.
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