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You have access to this article. Please wait while we load your content Something went wrong. Try again? Cited by. Back to tab navigation Download options Please wait Article type: Tutorial Review. DOI: Download Citation: Green Chem. Emerging techniques in bioethanol production: from distillation to waste valorization M.
- Advances in the Development of Bioethanol: A Review.
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- Advances in Sugarcane Biorefinery.
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Gavahian, P. Munekata, I. The common method for converting biomass into ethanol is called fermentation.
Advances in Sugarcane Biorefinery - 1st Edition
During fermentation, microorganisms e. Biodiesel is a liquid fuel produced from renewable sources, such as new and used vegetable oils and animal fats and is a cleaner-burning replacement for petroleum-based diesel fuel. Biodiesel is nontoxic and biodegradable and is produced by combining alcohol with vegetable oil, animal fat, or recycled cooking grease.
Like petroleum-derived diesel, biodiesel is used to fuel compression-ignition diesel engines.
Industrial Biotechnology and the Future of Ethanol Production
Petroleum fuels, such as gasoline, diesel, and jet fuel, contain a complex mixture of hydrocarbons molecules of hydrogen and carbon , which are burned to produce energy. Hydrocarbons can also be produced from biomass sources through a variety of biological and thermochemical processes. Biomass-based renewable hydrocarbon fuels are nearly identical to the petroleum-based fuels they are designed to replace—so they're compatible with today's engines, pumps, and other infrastructure. Currently one commercial scale facility World Energy in Paramount, California is producing renewable diesel from waste fats, oils, and greases.
Several companies are interested in either retrofitting existing brown-field sites or building green-field facilities for renewable diesel and jet in the US. Producing advanced biofuels e. First, the tough rigid structure of the plant cell wall—which includes the biological molecules cellulose, hemicellulose, and lignin bound tightly together—must be broken down. This can be accomplished in one of two ways: high temperature deconstruction or low temperature deconstruction. There are three primary routes used in this pathway:. The heat breaks down biomass into pyrolysis vapor, gas, and char.
When working with wet feedstocks like algae, hydrothermal liquefaction is the preferred thermal process. First, biomass undergoes a pretreatment step that opens up the physical structure of plant and algae cell walls, making sugar polymers like cellulose and hemicellulose more accessible.