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Process for pretreating a lignocellulosic material with a view to producing bioethanol, and bioethanol production process
Published online: Nov 4, 2010
|Subject||Production of bioethanol|
|Published date||Oct 6, 2010|
|Title||Process for pretreating a lignocellulosic material with a view to producing bioethanol, and bioethanol production process|
|Patent Application Number||EP2235254 A1|
|Assignee||Compagnie Industrielle De La Matiere Vegetale Cimv, France|
|Relevance||Method for producing bioethanol from pretreated lignocellulosic plant raw materials by fermentation.|
|Type of claims||Publication|
|Overview||This patent discloses a process for producing bioethanol from lignocellulosic plant raw materials such as stems, bark etc., or co-products from industrial processes including wheat straw, rice, barley etc., by fermentation. The process further involves pretreating the lignocellulosic plant raw materials by solvolysis in an acid/aqueous medium to separate biopolymers including cellulose, hemicelluloses and lignins which on hydrolysis and fermentation yield bioethanol. Advantageously, the process ensures a higher industrial performance regardless of the plant nature and provides a new valorization of annual plants. The process comprises, A) destructuring the lignocellulosic plant raw material by placing it in a mixture of formic acid and water at a desired temperature and atmospheric pressure, B) pretreating the lignocellulosic plant raw material to obtain a pretreated material, C) enzymatic hydrolysis of the pretreated material to produce a hydrolysis product and D) alcoholic fermentation of the hydrolysed product to produce bioethanol.|
|Related patent documents||
US Patent publications
Not ListedForeign patent publications
WO0068494 A1 - Method for producing paper pulp, lignins, sugars and acetic acid by fractionation of lignocellulosic vegetable material in formic/acetic acid medium (2000)
|Patent Document||Full Patent Document [external link]|
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