Recovery and use of wood acetylation fluids

Disclosed herein is the integration of production from ketene to acetic anhydride with wood acetylation using an acetylation fluid comprising acetic acid and acetic anhydride. The invention relates to recycling acetylation fluid recovered from wood acetylation to a unit for producing acetic anhydride from acetic acid and ketene. The acetic anhydride product stream can in turn be used directly as a wood acetylation fluid. 本文公开了由烯酮至乙酸酐的产生与使用包含乙酸和乙酸酐的乙酰化流体的木材乙酰化的整合。本发明涉及将从木材乙酰化回收的乙酰化流体再循环至由乙酸和烯酮产生乙酸酐的单元。乙酸酐产物流可以转而直接用作木材乙酰化流体。