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Bioconversion Of Plant Biomass To Ethanol First Bimonthly And Quarterly Report
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Book Synopsis Bioconversion of Plant Biomass to Ethanol. First Bimonthly and Quarterly Report by :
Download or read book Bioconversion of Plant Biomass to Ethanol. First Bimonthly and Quarterly Report written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research progress is reported in the development of an all-biological two-stage process for converting plant biomass into ethanol. The first stage will consist of a high-solids biomass pretreatment with a thermo-tolerant mold to remove sufficient lignin to make the cellulose available for saccharification. The second stage consists of a mixed culture fermentation and ethanol production using a thermo-tolerant anaerobic sporocytophaga to hydrolyze cellulose and a compatible thermo-tolerant bacillus to convert the soluble sugars formed during saccharification into ethanol. Initial studies on nutritional requirements of various thermophilic organisms and ethanol production are reported. (JGB).
Book Synopsis Bioconversion of Plant Biomass to Ethanol. Third Quarterly and Bimonthly Report, July 1--September 30, 1977 by :
Download or read book Bioconversion of Plant Biomass to Ethanol. Third Quarterly and Bimonthly Report, July 1--September 30, 1977 written by and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The studies of biological delignification have focused on the adaptation of the lignocellulosic thermophilic mold Chrysosporium pruinosum to growth on maple wood fibers. The addition of trace elements and thiamine hydrochloride to the C. pruinosum growth medium has been found to stimulate culture growth by a factor of about two. The nutritional salt tolerances of C. pruinosum have been determined. Nutrient concentrations below of about 2.5 times that required to support C. pruinosum growth have no significant deleterious inhibitory effects. Work on the design and construction of a bench-top high solids biological delignification bioreactor has been initiated. The mixed culture microbiological studies have focused mainly on nutritional growth requirements and rates of cellulose digestion and ethanol production. In small test tube mixed culture (sporocytophaga (US) + thermophilic bacillus (NW)) fermentations, the rate of cellulose degradation was found to proceed at a very high volumetric efficiency, 2.4 g/l-hr. The yield of ethanol from the mixed culture fermentation of cellulose varied between 24 and 50% of theoretical. The higher yields were obtained in the presence of insoluble calcium carbonate added to retard the rate of pH decline and to increase the CO2 tension. Bench-top fermentations at the 1 liter scale have been performed to verify, under controlled pH, agitation, and dissolved oxygen conditions, the results achieved in small scale test tube experiments. The specific growth rate of thermophilic bacillus NW on glucose was calculated to be 0.59 hr−1. In mixed culture fermentations of amorphous and microcrystalline cellulose the specific rate of substrate depletion was calculated to be 0.087 hr−1 and 0.0346 hr−1, respectively. Ethanol production in these fermentor runs was slower than the rates of acetic acid production. In the fermentation of microcrystalline cellulose, 2,3 butanediol was also produced.
Book Synopsis Bioconversion of plant biomass to ethanol by : General Electric Company. Research and Development Center
Download or read book Bioconversion of plant biomass to ethanol written by General Electric Company. Research and Development Center and published by . This book was released on 1977 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Plant Biomass to Ethanol by : General Electric Company. Research and Development Center
Download or read book Bioconversion of Plant Biomass to Ethanol written by General Electric Company. Research and Development Center and published by . This book was released on 1966 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Plant Biomass to Ethanol by : Ronald E. Brooks
Download or read book Bioconversion of Plant Biomass to Ethanol written by Ronald E. Brooks and published by . This book was released on 1978 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Plant Biomass to Ethanol by : Tah-Mun Su
Download or read book Bioconversion of Plant Biomass to Ethanol written by Tah-Mun Su and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Research Abstracts written by and published by . This book was released on 1978 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Plant Biomass to Ethanol by :
Download or read book Bioconversion of Plant Biomass to Ethanol written by and published by . This book was released on 1980 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Plant Biomass to Ethanol. Annual Report and Revised Research Plan, January 1977--January 1978 by :
Download or read book Bioconversion of Plant Biomass to Ethanol. Annual Report and Revised Research Plan, January 1977--January 1978 written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to demonstrate on a laboratory scale the technical feasibility of the direct microbial conversion of pretreated wood to ethanol. During the first year of this contract, we investigated the feasibility of biologically delignifying wood with C. pruinosum and directly fermenting the pretreated wood to ethanol with a mixed culture. Bench-top fermentations of a thermophilic bacillus growing on glucose and of a mixed culture of thermophilic sporocytophaga (US) and a thermophilic bacillus growing on microcrystalline and amorphous cellulose were evaluated for growth and ethanol production. In the mixed culture fermentation of amorphous and microcrystalline cellulose, the specific rate of substrate depletion was calculated to be 0.087 hr−1 and 0.0346 hr−1, respectively. However, defining the growth requirements of C. pruinosum and sporocytophaga (US) proved more difficult than originally anticipated. In order to achieve the program objectives within the contract period, a revised research plan was developed based upon chemical pretreatment and the direct fermentation of pretreated hardwood to ethanol. In place of the biological delignification pretreatment step, we have substituted a chemically supplemented steam pretreatment step to partially delignify wood and to enhance its accessibility to microbial utilization. Clostridium thermocellum, which ferments cellulose directly to ethanol and acetic acid, has replaced the mixed culture fermentation stage for ethanol production. Research on the production of ethanol from xylose by the thermophilic bacillus ZB-B2 is retained as one means of utilizing the hemicellulose fraction of hardwood. Work on the genetic improvement of the ethanol yields of both cultures by suppressing acetic acid production is also retained. The rationale, experimental approach, and economic considerations of this revised research plan are also presented.
Book Synopsis Bioconversion of Plant Biomass to Ethanol by : Ronald E. Brooks
Download or read book Bioconversion of Plant Biomass to Ethanol written by Ronald E. Brooks and published by . This book was released on 1978 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solar Energy Update written by and published by . This book was released on 1978 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Bioconversion of Plant Biomass to Ethanol. Final Report, 15 December 1976-31 December 1978 by :
Download or read book Bioconversion of Plant Biomass to Ethanol. Final Report, 15 December 1976-31 December 1978 written by and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Two approaches to ethanol production via thermophilic mixed culture fermentation of pretreated wood were investigated. The initial studies of wood biodelignification by Chrysosporium pruinosum and subsequent mixed culture fermentation to ethanol using a cellulolytic strain of sporocytophaga and a strain of Bacillus stearothermophilus proved to be premature for a development effort. Studies of the fermentation of SO2/steam-treated poplar by a mixed culture of C. thermocellum and C. thermosaccharolyticum were, however, technically and economically promising. Wood pretreatment to enhance microbial utilization, the microbiology and biochemistry of pure and mixed culture fermentation of cellulose by C. thermocellum and C. thermocellum and C. thermosaccharolyticum, and techniques for improving ethanol tolerance and yield were investigated. Considerable progress in overcoming the technical barriers to efficient ethanol production from wood have been demonstrated; however, additional studies and development work are required before technical feasibility can be established.
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 1979-02 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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 199? with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Gasohol Sourcebook by : Nicholas P. Cheremisinoff
Download or read book Gasohol Sourcebook written by Nicholas P. Cheremisinoff and published by Butterworth-Heinemann. This book was released on 1981 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Good,No Highlights,No Markup,all pages are intact, Slight Shelfwear,may have the corners slightly dented, may have slight color changes/slightly damaged spine.
Book Synopsis Appropriate Technology Information for Developing Countries by : United States. National Technical Information Service
Download or read book Appropriate Technology Information for Developing Countries written by United States. National Technical Information Service and published by . This book was released on 1979 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fuel from Farms by : Solar Energy Information Data Bank (U.S.)
Download or read book Fuel from Farms written by Solar Energy Information Data Bank (U.S.) and published by . This book was released on 1980 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Decision to produce; Markets and uses; Market assessment; Prodution potential; Equipment selection; Financial requirements; Decision and planning workssheets; Basic ethanol production; Preparation of feedstocks, Fermentation; Distillation; Types of feedstocks; Coproduct yields; Agronomic considerations; Plant design; Overall plant considerations; Process control; Representative ethanol plant; Maintenance checklist; Business plan; Analysis of financial requirements; Organizational form; Financing; Case study; Summary of legislation; Bureau of alcohol, tabacco, and firearms permit information; Enviromental considerations.
