Energy Balances in the Production and End-use of Alcohols Derived from Biomass
Author | : TRW Energy Systems Group. Energy Systems Planning Division |
Publisher | : |
Total Pages | : 152 |
Release | : 1980 |
Genre | : Alcohol as fuel |
ISBN | : |
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Author | : TRW Energy Systems Group. Energy Systems Planning Division |
Publisher | : |
Total Pages | : 152 |
Release | : 1980 |
Genre | : Alcohol as fuel |
ISBN | : |
Author | : |
Publisher | : |
Total Pages | : |
Release | : 1980 |
Genre | : |
ISBN | : |
Considerable public interest and debate have been focused on the so-called energy balance issue involved in the conversion of biomass materials into ethanol for fuel use. This report addresses questions of net gains in premium fuels that can be derived from the production and use of ethanol from biomass, and shows that for the US alcohol fuel program, energy balance need not be a concern. Three categories of fuel gain are discussed in the report: (1) Net petroleum gain; (2) Net premium fuel gain (petroleum and natural gas); and (3) Net energy gain (for all fuels). In this study the investment of energy (in the form of premium fuels) in alcohol production includes all investment from cultivating, harvesting, or gathering the feedstock and raw materials, through conversion of the feedstock to alcohol, to the delivery to the end-user. To determine the fuel gains in ethanol production, six cases, encompassing three feedstocks, five process fuels, and three process variations, have been examined. For each case, two end-uses (automotive fuel use and replacement of petrochemical feedstocks) were scrutinized. The end-uses were further divided into three variations in fuel economy and two different routes for production of ethanol from petrochemicals. Energy requirements calculated for the six process cycles accounted for fuels used directly and indirectly in all stages of alcohol production, from agriculture through distribution of product to the end-user. Energy credits were computed for byproducts according to the most appropriate current use.
Author | : TRW Energy Systems Group. Energy Systems Planning Division |
Publisher | : |
Total Pages | : 144 |
Release | : 1980 |
Genre | : Alcohol as fuel |
ISBN | : |
Author | : Jo Dewulf |
Publisher | : John Wiley & Sons |
Total Pages | : 384 |
Release | : 2006-06-14 |
Genre | : Science |
ISBN | : 0470022434 |
Sustainability is a key driving force for industries in the chemical, food, packaging, agricultural and pharmaceutical sectors, and quantitative sustainability indicators are being incorporated into company reports. This is driving the uptake of renewable resources and the adoption of renewables. Renewables' can either be the substituted raw materials that are used in a given industry, (e.g. the use of biomass for fuel); the use and/or modification of a crop for use in a new industry (e.g. plant cellulose), or the reuse of a waste product (e.g. organic waste for energy production). This is the first book in the Wiley Renewable Resources series that brings together the range of sustainability assessment methods and their uses. Ensuing books in the series will look at individual renewable materials and applications.
Author | : Solar Energy Information Data Bank (U.S.) |
Publisher | : |
Total Pages | : 324 |
Release | : 1980 |
Genre | : Alcohol |
ISBN | : |
Author | : U.S. National Alcohol Fuels Commission |
Publisher | : |
Total Pages | : 1108 |
Release | : 1981 |
Genre | : Alcohol as fuel |
ISBN | : |