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In the straw biogas fermentation with high concentration, ratio of nitrogen and amount of seeding material have significant effect. Experiments show that gas production is very high in early time when the urea addition level is 2.5% or 3.0%, but the methane content of gas is less than 45%. when the urea proportion is 3.5%, the gas production curve is gently, the fermentation starting time is short...
With the profoundation of study on biodiesel, it can be found that biodiesel and water may format micro-emulsion fuels only with the existence of ethanol, furthermore, more water and biodiesel can be micro-emulsified with certain surfactants and ethanol. To study the application of biodiesel-ethanol-water micro-emulsion fuels, the paper indicates the preparation of the micro-emulsion fuels, and their...
Pro-Alcool the National Alcohol Program began in 1975 and was a government financed program, developed on account of the petrol crisis of 1973, and fortified due to the second impact of 1979. This program aimed to substitute gasoline with ethanol from sugar cane on a grand scale, thereby reducing the dependence on imported petroleum. During the decades to follow, as the international price of petrol...
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