21-03-2019 дата публикации
Номер: US20190085361A1
Принадлежит:
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. 1. A method of processing biomass , the method comprising: treating biomass with radiation , thereby producing treated biomass; and converting a first portion of the treated biomass utilizing bacteria capable of metabolizing both sugar and syngas feedstocks , to produce the carboxylic acid ester , wherein during converting , syngas is delivered to the bacteria , wherein the syngas is produced by gasification of a second portion of the treated biomass.2. The method of wherein the radiation comprises gamma radiation claim 1 , microwave radiation claim 1 , infrared radiation claim 1 , electron beam radiation claim 1 , X-rays claim 1 , ultraviolet radiation claim 1 , ion particle beam radiation claim 1 , or a combination of any of the forgoing.3. The method of wherein the radiation comprises electron beam radiation.4. The method of wherein the electron beam radiation is delivered at a dose of at least 10 Mrad.5. The method of claim 1 , further comprising treating the biomass with shearing claim 1 , cutting claim 1 , grinding claim 1 , pulverizing claim 1 , chopping claim 1 , shredding claim 1 , sonication claim 1 , ...
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