公开(公告)号：US20160298142A1

公开(公告)日：2016-10-13

申请号：US14991209

申请日：2014-06-09

Applicant: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY

Inventor： Ju Hyun YU ,  Chan Duck JUNG ,  In Yong EOM ,  Seung Hwan LEE ,  Kyung Sik HONG ,  In Chul KIM ,  Jong Geon JEGAL ,  Bong Keun SONG

IPC: C12P7/14 ,  C07H1/06 ,  C12P7/56 ,  C07H3/02 ,  C12P19/14 ,  C12P19/02

CPC classification number: C12P7/14 ,  C07H1/06 ,  C07H3/02 ,  C12P7/065 ,  C12P7/10 ,  C12P7/56 ,  C12P19/02 ,  C12P19/14 ,  C12P19/56 ,  C12P2201/00 ,  C13K1/02 ,  Y02E50/16 ,  Y02E50/17

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.

Abstract translation: 本发明涉及从木质纤维素生物质制备生物乙醇的方法。 本发明的方法能够：通过在预处理之前用热水提取生物质，除去无机盐等可萃取物质，使酶糖化原料的杂质含量最小化。 在最大限度地抑制糖的过度分解产物的生产，通过在使木聚糖产率最大化的条件下预处理从其中除去热水可提取物质的生物质; 以低成本制备可发酵糖，而不洗涤从随后的固液分离得到的预处理固体，而仅通过使用分离膜浓缩酶糖化后获得的糖溶液; 并以高产率从其制备生物乙醇。

公开(公告)号：US20190032094A1

公开(公告)日：2019-01-31

申请号：US16150760

申请日：2018-10-03

Applicant: Korea Research Institute of Chemical Technology

Inventor： Ju Hyun YU ,  Chan Duck JUNG ,  In Yong EOM ,  Seung Hwan LEE ,  Kyung Sik HONG ,  In Chul KIM ,  Jong Geon JEGAL ,  Bong Keun SONG

IPC: C12P7/14 ,  C12P19/56 ,  C12P7/06 ,  C07H1/06 ,  C12P19/14 ,  C13K1/02 ,  C12P7/56 ,  C12P7/10 ,  C07H3/02 ,  C12P19/02

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.