The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 16, 2014
Filed:
Dec. 17, 2010
Torbjörn Van Der Meulen, Örnsköldsvik, SE;
Stanley Forss, Bjästa, SE;
Lars Elfving, Sidensjö, SE;
Staffan Magnusson, Örnsköldsvik, SE;
Magnus Hägglund, Domsjö, SE;
Anders Sjöblom, Bonässund, SE;
Torbjörn Van Der Meulen, Örnsköldsvik, SE;
Stanley Forss, Bjästa, SE;
Lars Elfving, Sidensjö, SE;
Staffan Magnusson, Örnsköldsvik, SE;
Magnus Hägglund, Domsjö, SE;
Anders Sjöblom, Bonässund, SE;
Sekab E-Technology AB, , SE;
Abstract
A method of pre-treating a cellulosic material before hydrolysis is provided. The method comprises the steps of: impregnating the cellulosic material with a reactive water-soluble gas, such as sulphur dioxide (SO) or carbon dioxide (CO), in an impregnation chamber to obtain impregnated material; and heating the impregnated material to obtain pre-treated material, wherein the cellulosic material is compressed right before or when it is transferred to the impregnation chamber. A corresponding system is also provided.