Processing biomass

C - Chemistry – Metallurgy – 12 – P

Patent

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Details

C12P 7/00 (2006.01) C10J 1/00 (2006.01) C10J 3/00 (2006.01) C10L 3/10 (2006.01)

Patent

CA 2749468

Carbon-containing materials, such as biomass (e.g., plant biomass, animal biomass, and municipal waste biomass) or coal are processed to produce useful products, such as fuels, carboxylic acids and equivalents thereof (e.g., esters and salts). For example, systems are described that can use feedstock materials, such as cellulosic and/or lignocellulosic materials and/or starchy materials, to produce ethanol, butanol or organic acids (e.g., acetic or lactic acid), salts of organic acids or mixtures thereof. If desired, organic acids can be converted into alcohols, such as by first converting the acid, salt or mixtures of the acid and its salt to an ester, and then hydrogenating the formed ester. Acetogens or homoacetogens which are capable of utilizing a syngas from a thermochemical conversion of coal or biomass can be utilized to produce the desired product.

L'invention concerne le traitement de matériaux contenant du carbone, tels qu'une biomasse (p. ex. biomasse végétale, biomasse animale et biomasse issue de déchets municipaux) ou de charbon pour fabriquer des produits utiles, tels que des carburants, des acides carboxyliques et leurs équivalents (p. ex. esters et sels). L'invention concerne par exemple des systèmes qui peuvent utiliser des matières premières telles que des matières cellulosiques et/ou lignocellulosiques et/ou des matières amylacées pour produire de l'éthanol, du butanol ou des acides organiques (p. ex. acide acétique ou lactique), des sels d'acides organiques ou leurs mélanges. Si on le souhaite, des acides organiques peuvent être transformés en alcools, par exemple en transformant tout d'abord l'acide, le sel ou des mélanges de l'acide et de son sel en un ester, puis en hydrogénant l'ester formé. Des acétogènes ou des homoacétogènes qui sont capables d'utiliser un gaz de synthèse issu d'une conversion thermochimique de charbon ou de biomasse peuvent être utilisés pour fabriquer le produit souhaité.

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