Biofuel Production Initiative at Claflin University Final Report

Chowdhury, Kamal

关键词: ACETONE;    BACTERIA;    BAGASSE;    BIOFUELS;    BIOMASS;    BUTANOLS;    CARBOHYDRATES;    FERMENTATION;    INCOME;    MICROORGANISMS;    MODIFICATIONS;    MUTATIONS;    NATIONAL GOVERNMENT;    PILOT PLANTS;    PRODUCTION;    STRAINS;    TARGETS;    TESTING;    WOOD Biomass;    Biofuel;    Renewable Energy;    ligno-cellulosic;    feedstock;    butanol production;    bio-butanol;   

DOI  :  10.2172/1019036
RP-ID  :  DOE-CLAFLIN-88072
PID  :  OSTI ID: 1019036
Others  :  TRN: US201117%%7

学科分类：燃料技术

美国|英语

来源: SciTech Connect

【 摘 要 】

For US transportation fuel independence or reduced dependence on foreign oil, the Federal Government has mandated that the country produce 36 billion gallons (bg) of renewable transportation fuel per year for its transportation fuel supply by 2022. This can be achieved only if development of efficient technology for second generation biofuel from ligno-cellulosic sources is feasible. To be successful in this area, development of a widely available, renewable, cost-effective ligno-cellulosic biomass feedstock that can be easily and efficiently converted biochemically by bacteria or other fast-growing organisms is required. Moreover, if the biofuel type is butanol, then the existing infrastructure to deliver fuel to the customer can be used without additional costs and retrofits. The Claflin Biofuel Initiative project is focused on helping the US meet the above-mentioned targets. With support from this grant, Claflin University (CU) scientists have created over 50 new strains of microorganisms that are producing butanol from complex carbohydrates and cellulosic compounds. Laboratory analysis shows that a number of these strains are producing higher percentages of butanol than other methods currently in use. All of these recombinant bacterial strains are producing relatively high concentrations of acetone and numerous other byproducts as well. Therefore, we are carrying out intense mutations in the selected strains to reduce undesirable byproducts and increase the desired butanol production to further maximize the yield of butanol. We are testing the proof of concept of producing pre-industrial large scale biobutanol production by utilizing modifications of currently commercially available fermentation technology and instrumentation. We have already developed an initial process flow diagram (PFD) and selected a site for a biobutanol pilot scale facility in Orangeburg, SC. With the recent success in engineering new strains of various biofuel producing bacteria at CU, it will soon be possible to provide other technical information for the development of process flow diagrams (PFD???s) and piping and instrumentation diagrams (P&ID???s). This information can be used for the equipment layout and general arrangement drawings for the proposed process and eventual plant. An efficient bio-butanol pilot plant to convert ligno-cellulosic biomass feedstock from bagasse and wood chips will create significant number of green jobs for the Orangeburg, SC community that will be environmentally-friendly and generate much-needed income for farmers in the area.