[EN] PROCESS FOR THE PREPARATION OF HIGHER ALCOHOLS FROM ETHANOL AND N-HEXANOL BY GUERBET CONDENSATION<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ALCOOLS SUPÉRIEURS À PARTIR D'ÉTHANOL ET DE N-HEXANOL PAR UNE CONDENSATION DE GUERBET
申请人:ABENGOA BIOENERGIA NUEVAS TECNOLOGIAS SA
公开号:WO2016075531A1
公开(公告)日:2016-05-19
The present disclosure generally relates to processes for preparation of n-butanol, n-octanol and n-decanol from a reaction mixture comprising ethanoi and n-hexanol by Guerbet condensation. In some aspects, the present disclosure relates to improvements in n-octanol and n-decanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n-hexanol to ethanol. The present disclosure further generally relates to integrated processes for preparation of n-butanol in a n-butanol reactor from a reaction mixture comprising ethanol and hydrogen to produce a n-butanol product stream by Geurbet condensation comprising n-butanol and n-hexanol and for preparation of n-octanol in a n-octanol reactor from a reaction mixture comprising ethanol, n-hexanol and hydrogen to produce a n-octanol product stream by Geurbet condensation comprising n-butanol, n-hexanol and n-octanol. A predominant proportion of the n-hexanol contained in the n-butanol and n-octanol product streams is isolated and recycled to the n-octanol reaction mixture. In some aspects, the present disclosure relates to improvements in n-octanol and n-butanol yield and selectivity by the selection of process reaction conditions such as, but not limited to, mole ratio of n-hexanol to ethanol and recovery and recycle of n-hexanol.
本公开涉及从包含乙醇和正己醇的反应混合物通过Guerbet缩合制备正丁醇、正辛醇和正癸醇的过程。在某些方面,本公开涉及通过选择过程反应条件(例如,但不限于正己醇与乙醇的摩尔比)改善正辛醇和正癸醇的产率和选择性。本公开进一步涉及从包含乙醇和氢的反应混合物在正丁醇反应器中通过Geurbet缩合制备正丁醇产品流,其中包括正丁醇和正己醇,并且通过Geurbet缩合从包含乙醇、正己醇和氢的反应混合物在正辛醇反应器中制备正辛醇产品流,其中包括正丁醇、正己醇和正辛醇。正丁醇和正辛醇产品流中含有的主要部分正己醇被分离并回收到正辛醇反应混合物中。在某些方面,本公开涉及通过选择过程反应条件(例如,但不限于正己醇与乙醇的摩尔比以及正己醇的回收和回收利用)改善正辛醇和正丁醇的产率和选择性。