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:
Jun. 25, 2019
Filed:
Jun. 09, 2014
Korea Research Institute of Chemical Technology, Daejeon, KR;
Ju Hyun Yu, Daejeon, KR;
Chan Duck Jung, Daejeon, KR;
In Yong Eom, Daejeon, KR;
Seung Hwan Lee, Daejeon, KR;
Kyung Sik Hong, Daejeon, KR;
In-Chul Kim, Daejeon, KR;
Jong Geon Jegal, Daejeon, KR;
Bong Keun Song, Daejeon, KR;
Korea Research Institute of Chemical Technology, Daejon, KR;
Abstract
The present invention relates to a method for preparing bioethanol from lignocellulosic biomass. The method of the present invention is capable of: minimizing the impurity content of an enzymatic saccharification raw material, by extracting biomass using hot water, before pretreatment, and removing extractable substances such as inorganic salts; suppressing, to the greatest extent, the production of overdecomposition products of sugar, by pretreating the biomass, from which the hot water extractable substances have been removed, in a condition for maximizing xylan yield; preparing fermentable sugar at a low cost, without washing a pretreated solid obtained from subsequent solid-liquid separation, but by only concentrating a sugar solution obtained after enzymatic saccharification, using a separation film; and preparing bioethanol therefrom in high yield.