公开(公告)号：US20170037436A1

公开(公告)日：2017-02-09

申请号：US15297839

申请日：2016-10-19

Applicant: API Intellectual Property Holdings, LLC

Inventor： Theodora RETSINA ,  Vesa PYLKKANEN ,  Steven R. RUTHERFORD ,  Jean-Pierre MONCLIN

IPC: C12P7/14 ,  D21C1/02

CPC classification number: C12P7/14 ,  C12P2201/00 ,  C12P2203/00 ,  D21C1/02 ,  D21C3/00 ,  D21C9/00 ,  Y02E50/16

Abstract: A low-cost process is provided to render lignocellulosic biomass accessible to cellulase enzymes, to produce fermentable sugars. Some variations provide a process to produce ethanol from lignocellulosic biomass (such as sugarcane bagasse or corn stover), comprising introducing a lignocellulosic biomass feedstock to a single-stage digestor; exposing the feedstock to a reaction solution comprising steam or liquid hot water within the digestor, to solubilize the hemicellulose in a liquid phase and to provide a cellulose-rich solid phase; refining the cellulose-rich solid phase, together with the liquid phase, in a mechanical refiner, thereby providing a mixture of refined cellulose-rich solids and the liquid phase; enzymatically hydrolyzing the mixture in a hydrolysis reactor with cellulase enzymes, to generate fermentable sugars; and fermenting the fermentable sugars to produce ethanol. Many alternative process configurations are described. The disclosed processes may be employed for other fermentation products.

Abstract translation: 提供了一种低成本的方法来使木质纤维素生物质可获得纤维素酶，以产生可发酵的糖。 一些变型提供了从木质纤维素生物质（例如甘蔗渣或玉米秸秆）生产乙醇的方法，包括将木质纤维素生物质原料引入单级消化器; 将原料暴露于消化器内包含蒸汽或液体热水的反应溶液中，以将半纤维素溶解在液相中并提供富含纤维素的固相; 在机械磨浆机中将富含纤维素的固相与液相一起精炼，从而提供精制富含纤维素的固体和液相的混合物; 在水解反应器中用纤维素酶酶水解水解产生可发酵糖; 并发酵可发酵糖以产生乙醇。 描述了许多替代的工艺配置。 所公开的方法可用于其它发酵产物。

公开(公告)号：US20160060667A1

公开(公告)日：2016-03-03

申请号：US14838339

申请日：2015-08-27

Applicant: API Intellectual Property Holdings, LLC

Inventor： Jean-Pierre MONCLIN ,  Vesa PYLKKANEN ,  Cosmas BAYUADRI

IPC: C12P19/14 ,  C12P19/02

CPC classification number: C12P19/14 ,  C12P19/02 ,  C12P2201/00

Abstract: The invention provides a continuous process for enzymatic hydrolysis of pretreated biomass, the process comprising: providing a pretreated lignocellulosic biomass feed material containing cellulose; introducing the pretreated lignocellulosic biomass feed material to a mechanical-treatment unit containing one or more decompression regions configured to release pressure; introducing a liquid solution containing cellulase enzymes to one or more decompression regions in the mechanical-treatment unit, wherein the liquid solution enters void spaces between fibers of the pretreated lignocellulosic biomass feed material, to form enzyme-containing cellulose-rich solids; and retaining the enzyme-containing cellulose-rich solids under effective hydrolysis conditions to hydrolyze at least some of the cellulose to glucose. Various apparatus configurations are disclosed for the mechanical-treatment unit.

Abstract translation: 本发明提供了用于预处理的生物质的酶水解的连续方法，该方法包括：提供含纤维素的预处理的木质纤维素生物质饲料; 将预处理的木质纤维素生物质原料引入含有一个或多个构造成释放压力的减压区域的机械处理单元; 将含有纤维素酶的液体溶液引入机械处理单元中的一个或多个减压区域，其中液体溶液进入预处理的木质纤维素生物质进料的纤维之间的空隙，形成含酶的富含纤维素的固体; 并且在有效的水解条件下保留含酶的富含纤维素的固体以将至少一些纤维素水解成葡萄糖。 公开了用于机械处理单元的各种装置结构。

公开(公告)号：US20150232580A1

公开(公告)日：2015-08-20

申请号：US14623853

申请日：2015-02-17

Applicant: API Intellectual Property Holdings, LLC

Inventor： Theodora RETSINA ,  Jean-Pierre MONCLIN ,  Ryan ZEBROSKI ,  Anastasios TRYPAKIS ,  Vesa PYLKKANEN

IPC: C08B15/00

CPC classification number: C08B15/00 ,  C08H8/00

Abstract: The disclosure provides a process for separating fermentation inhibitors from a biomass-derived hydrolysate, comprising: introducing a biomass-derived liquid hydrolysate stream to a stripping column; introducing a steam-rich vapor stream to the stripping column to strip fermentation inhibitors (such as acetic acid) from the liquid hydrolysate stream; recovering a stripped liquid stream and a stripper vapor output stream; compressing the stripper vapor output stream; introducing the compressed vapor stream, and a water-rich liquid stream, to an evaporator; recovering, from the evaporator, an evaporated liquid stream and an evaporator output vapor stream; and recycling the evaporator output vapor stream to the stripping column as the steam-rich vapor stream. Other variations utilize a rectification column to recover a rectified liquid stream and a rectification column vapor stream, and recycle the rectification column vapor stream to the stripping column as the steam-rich vapor stream.

Abstract translation: 本公开提供了从生物质衍生的水解产物中分离发酵抑制剂的方法，包括：将生物质衍生的液体水解产物流引入汽提塔; 将蒸汽蒸汽流引入汽提塔以从液体水解产物流中分离出发酵抑制剂（如乙酸）; 回收剥离的液体流和汽提蒸气输出流; 压缩汽提蒸汽输出流; 将压缩蒸汽流和富水液体流引入蒸发器; 从蒸发器中回收蒸发的液体流和蒸发器输出蒸气流; 并将蒸发器输出蒸气流循环到汽提塔作为富蒸气蒸气流。 其他变化使用精馏塔来回收精馏液流和精馏塔蒸气流，并将精馏塔蒸气流作为富蒸气流再循环至汽提塔。