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。