发明名称 |
PROCESSES FOR PRODUCING CELLULOSE PULP, SUGARS, AND CO-PRODUCTS FROM LIGNOCELLULOSIC BIOMASS |
摘要 |
The GreenBox+ technology is suitable to extract hemicellulose sugars prior to pulping of biomass into pulp products. The revenue obtainable from the sugar stream can significantly improve the economics of a pulp and paper mill. An initial extraction and recovery of sugars is followed by production of a pulp product with similar or better properties. Other co-products such as acetates and furfural are also possible. Some variations provide a process for co-producing pulp and hemicellulosic sugars from biomass, comprising: digesting the biomass in the presence of steam and/or hot water to extract hemicellulose into a liquid phase; washing the extracted solids, thereby generating a liquid wash filtrate and washed solids; separating the liquid wash filtrate from the washed solids; refining the washed solids at a refining pH of about 4 or higher, thereby generating pulp; and hydrolyzing the hemicellulose to generate hemicellulosic fermentable sugars. |
申请公布号 |
EP2904144(A1) |
申请公布日期 |
2015.08.12 |
申请号 |
EP20130843684 |
申请日期 |
2013.10.03 |
申请人 |
API INTELLECTUAL PROPERTY HOLDINGS, LLC. |
发明人 |
RETSINA, THEODORA;PYLKKANEN, VESA;RUTHERFORD, STEVEN |
分类号 |
D21C1/02;C07H1/06;C07H1/08;D21C3/04 |
主分类号 |
D21C1/02 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|