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Year: 1949 Publisher: [Washington, D.C.] : U.S. Dept. of the Interior, Bureau of Mines,
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Year: 1951 Publisher: [Washington, D.C.] : U.S. Department of the Interior, Bureau of Mines,
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Book
Year: 2006
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Book
Year: 2005 Publisher: [Washington, D.C.] : U.S. Dept. of Energy, Energy Efficiency and Renewable Energy,
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Book
Year: 2020 Publisher: Florence : Firenze University Press,
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The history of the genus Homo, and of the sapiens species in particular, is different from that of other species due to the extreme importance of cultural evolution compared to biological evolution. But from the discovery of how to use fire and generate it, up to the invention of the steam engine, man essentially lives, like the other organisms of the biosphere, on the energy flow guaranteed by solar radiation. With the encounter between machines and fossil fuels and the entry into the era of engines, the rules of the game change radically, and the activities of Homo sapiens change in extent and intensity, in such a way as to progressively reduce the living space of all other animal and plant species, except for the allied and commensal ones. The global industrialized society arising from the meeting between machines and fossil sources is presently facing two fundamental difficulties: the gradual saturation of terrestrial ecosystems with the waste of social and economic metabolism, and the finiteness of fossil energy sources, which are not easy replacement due to their special chemical-physical properties.
Book
Year: 2018 Publisher: London : InTechOpen,
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The current industrial production of the biodiesel relies mainly on vegetable oils that could result in the shortage of edible oils in food markets and increase in their prices. Microbial lipids produced by oleaginous microorganism have attracted a lot of attention in the recent years as a source of high-value polyunsaturated acids as well as alternative feedstock for the production of biodiesel. However, the production of microbial oils faces a number of problems concerning the costs of lipid extraction, carbon source and operational cost for microbial cultivation in conventional stirred tank bioreactor which makes production economically unfeasible. Non-food feedstocks, lignocellulose biomass and different waste streams containing lignocellulose, are low-cost sources of renewable carbon that could significantly reduce the production cost of microbial lipids. This review analyses the current production of microbial lipids from lignocellulose feedstocks and gives an overview of the main stages in the process of lipid production, pretreatment and hydrolysis of the feedstock and microbial cultivation. Cultivation of oleaginous microorganisms has been conducted by submerged cultivation and solid state fermentation. Three process configurations have been used in the lipid production including, separate hydrolysis and lipid production (SHLP), simultaneous saccharification and lipid production (SSLP) and consolidate bioprocessing (CBP). Implementing the biorefinery concept that includes co-production of different value-added products (polyunsaturated fatty acids, amino acids, lignin and pigments) could improve the feasibility of lipid production bioprocess.
Book
Year: 2009 Publisher: [Golden, Colo.] : National Renewable Energy Laboratory,
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Year: 2008 Publisher: Washington, D.C. : United States Environmental Protection Agency, Office of Transportation and Air Quality,
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Gasoline --- Diesel fuels --- Motor fuels
Book
ISBN: 161761453X 9781617614538 9781608761388 160876138X Year: 2010 Publisher: New York Nova Science Publishers
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Biodiesel fuels --- Diesel motor --- Standards --- Alternative fuels
Book
Year: 2013 Publisher: [Washington, D.C.] : United States Environmental Protection Agency, Office of Transportation and Air Quality,
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Biodiesel fuels --- Biomass energy --- Motor fuels --- Standards
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