METHOD FOR PREPARING BENZYL ALCOHOL AND HOMOLOGUES BY MEANS OF CATALYTIC CONVERSION OF LOWER ALCOHOL AND CATALYST USED

摘要

Disclosed are a method for preparing a benzyl alcohol and homologues by means of the catalytic conversion of a lower alcohol and a catalyst used, belonging to the technical field of chemical catalysis. The present invention aims to develop a route for preparing a benzyl alcohol and an ethyl benzyl alcohol, using methanol + ethanol or ethanol + propanol as mixed raw materials, by means of a cross coupling-aromatization reaction, and provides the catalyst required in the catalytic conversion route. It is specifically emphasized that the target products of the benzyl alcohol and the homologues are produced in one step by means of a single bed of the catalyst, and this route is expected to be an important alternative route for the increase in the production of the benzyl alcohol and homologues. The present invention provides a route for directly producing a benzyl alcohol and an ethyl benzyl alcohol starting from a lower alcohol by means of the cross coupling-aromatization reaction, and the corresponding catalyst, wherein the selectivity of the benzyl alcohol is up to 35%, and the total selectivity of the ethyl benzyl alcohol is up to 11%. The reaction route generates a large amount of hydrogen, and can be used directly in chemical reactions and fuel batteries. The route also generates high carbon chain alcohols that can be used as fuels and oil product additives, and can partially replace petroleum products, thereby reducing China's dependence on crude oil.