专利检索 ap:("DALIAN SANYUANXIN ENZYMATIC SCIENCE & TECHNOLOGY CO., LTD.") AND inv:"HUA SUN" 第 1 页

1.

发明申请
METHOD AND SYSTEM FOR PREPARING PULP FOR PAPER WITH GRASS STRAWS AS RAW MATERIAL 审中-公开

公开(公告)号：US20180105851A1

公开(公告)日：2018-04-19

申请号：US15604595

申请日：2017-05-24

申请人： DALIAN SANYUANXIN ENZYMATIC SCIENCE & TECHNOLOGY CO., LTD.

发明人： HUA SUN , ZHONGYU LIU

IPC分类号： C12P19/02 , D21H11/12 , D21C5/00 , D21C7/00 , C12P19/14

CPC分类号： C12P19/02 , C12P19/14 , C12P2201/00 , C12Y302/01008 , C12Y302/01078 , D21C5/005 , D21C7/00 , D21H11/12

摘要： The present invention provides a method and a system for preparing pulp for paper with grass straws as raw material. The method of the present invention includes the following steps: 1) adding water in raw material for pulping, performing a first enzymolysis with ligninolytic enzyme; 2) cooking the first enzymolysis product at 80-130° C.; 3) performing second enzymolysis with hemicellulase to the cooked product. The method of the present invention is able to improve the pulp yield, reduce discharge of pollutants from black liquor, lower alkali consumption and energy consumption, and facilitate extraction of lignin and C-5 sugars, and pulp has a high quality.