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nature : a continuous cycle of renewable organic material. Generalized biomass should include all the natural and artificial cultivation of plants and animals, plankton, microbes and the processing of a range of products from waste, but many of the current means of available resources, most of which are plant products, by-products and residues, including some of the sources of animal products and wastes . Major : grain, edible oil, sugar and other crops such crops straw, grain and other agricultural products HUSK agricultural products; Wood, wood, sawdust and other forest products and forest products; Animal fats and animal manure source products; As well as food, paper and sugar industries in the effluent, sludges and most other cities refuse. Biomass from the photosynthesis of plants to fix atmospheric carbon dioxide generated, the main components of starch, cellulose, lignin and other substances. A no less important than coal, oil and sources of raw materials will not be depleted resources. With bio-engineering in the development of the national economy status increasingly important. To biomass as raw materials, fermentation, chemical conversion, gasification, pyrolysis and processing methods can be obtained methane gas, ethanol, methanol and other fuels; Pulp, viscose, carboxymethyl cellulose, cellulose products such as cellophane; Acetone, alcohol, lactic acid, citric acid, itaconic acid, sorbitol, vanillin, glycerol, furfural, modified starch and other chemicals.
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