发明名称 VERFAHREN UND SYSTEM ZUR VORBEHANDLUNG VON LIGNOCELLULOSISCHEM MATERIAL
摘要 The invention relates to a method and a system for the pretreatment of lignocellulosic material by thermal hydrolysis, in particular with a view to producing bioethenol, wherein the material is first admixed with water and is then passed to a reactor, in which the soaked material is subjected to a high temperature and a high pressure to such an extent that is it accessible for a subsequent treatment with enzymes, following which the treated material is separated into liquid part and a solid part, where the solid component is subsequently used for the production of bioethenol and enzymation and fermentation. Exclusively steam is used in the method and the corresponding system for heating, stirring and transport, as e.g. the transport through the various elements of the system is provided by a pressure difference between the compartments of the elements. The material (32) is discharged to an economizer (4), in which a separator (5) separates the material into a solid part and a liquid part. The solid part (29) is discharged for use in the further process. The method is performed as a two step proceed, as the material (32) from the first reactor (3) is injected into the economizer (4) and from there further on (26) to an additional reactor (8) for an additional treatment step. A high efficiency is achieved, as all pressures are established by direct steam addition, and heating surfaces and mechanical elements, such as pumps, stirrers, stuffing boxes, bearings, etc. are avoided. The use of economizers (4, 9) improves the consumption of energy relative to previously known processes.
申请公布号 AT503027(T) 申请公布日期 2011.04.15
申请号 AT20080773303T 申请日期 2008.07.24
申请人 HAARSLEV A/S 发明人 FOSBOL, PEDER;HANSEN, PALLE
分类号 C13K1/02;C12P7/10;C13K1/04 主分类号 C13K1/02
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