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Clean production bioethanol [20] is a biofuel obtained by maximizing non-greenhouse gas emitting (renewable) resources: energy directly consumed to make the ethanol is renewable energy . The farm equipment and ethanol plant use an ethanol engine , biodiesel , air engine or electricity cogenerated during ethanol production, or even wind power ...
The efficiency of the bioethanol compared with standard gasoline; The amount of carbon dioxide produced at the tail pipe. The benefits due to the production of useful bi-products, such as cattle feed or electricity. The graph on the right shows figures calculated by the UK government for the purposes of the Renewable transport fuel obligation. [78]
Enzymes required for maize grain ethanol production cost 2.64-5.28 US dollars per cubic meter of ethanol produced. Enzymes for cellulosic ethanol production are projected to cost 79.25 US dollars, meaning they are 20-40 times more expensive. [71] The cost differences are attributed to quantity required.
The world's top ethanol fuel producer in 2010 was the United States with 13.2 billion U.S. gallons (49.95 billion liters) representing 57.5% of global production, followed by Brazil with 6.92 billion U.S. gallons (26.19 billion liters), and together both countries accounted for 88% of the world production of 22.95 billion U.S. gallons (86.85 ...
Biofuels include bioethanol, an alcohol made by fermentation—often used as a gasoline additive, and biodiesel, which is usually used as a diesel additive. Specific energy is energy per unit mass, which is used to describe the chemical energy content of a fuel, expressed in SI units as joule per kilogram (J/kg) or equivalent units. [1]
Bioethanol plants and sugarcane mills are well-established processes where the biorefinery concept can be implemented since sugarcane bagasse is a feasible feedstock to produce fuels and chemicals; [8] lignocellulosic bioethanol (2G) is produced in Brazil in two plants with capacities of 40 and 84 Ml/y (about 0.4% of the production capacity in ...
An operating lignocellulosic ethanol production plant is located in Canada, run by Iogen Corporation. [32] The demonstration-scale plant produces around 700,000 litres of bioethanol each year. A commercial plant is under construction. Many further lignocellulosic ethanol plants have been proposed in North America and around the world.
While biodiesel and bio-ethanol production so far only use parts of a plant, i.e. oil, sugar, starch or cellulose, BtL production can gasify and utilize the entire plant. Flash pyrolysis [ edit ]