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특허 상세정보

Method of hydrogasification of biomass to methane with low depositable tars

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C07C-007/20   
미국특허분류(USC) 585/240; 208/067; 208/068
출원번호 US-0750757 (2013-01-25)
등록번호 US-8674153 (2014-03-18)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Klarquist Sparkman, LLP
인용정보 피인용 횟수 : 0  인용 특허 : 67
초록

A method for converting lignocellulosic biomass to a useful fuel is disclosed in a process sequence resulting in low levels of depositable tars in an output gas stream. One disclosed embodiment comprises performing a sequence of steps at elevated pressure and elevated hydrogen partial pressure, including fast (or flash) hydropyrolysis of a lignocellulosic biomass feed followed sequentially with catalytically enhanced reactions for the formation of methane operating at moderate temperatures of from about 400° C. to about 650° C. under moderately elevated ...

대표
청구항

1. A method for converting biomass to methane and light hydrocarbons with low levels of depositable tars, comprising: a) performing a fast pyrolysis of lignocellulosic biomass by a process selected from flash pyrolysis, fast pyrolysis or rapid pyrolysis using a hydrogen-containing sweep gas at a temperature of between about 400° C. and about 600° C. and at an elevated pressure of about 3 atm to about 50 atm to produce a hot pyrolysis gas mixture and a by-product containing char and ash;b) passing the hot pyrolysis gas mixture containing hydrogen through ...

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