ACETIC ACID HYDROGENATION OVER A GROUP VIII METAL CALCINED CATALYST HAVING A SECONDARY PROMOTER

摘要

The present invention relates to a process for hydrogenating feedstock comprising acetic acid in the presence of hydrogen to product comprising ethanol in a reaction zone under hydrogenation conditions over a catalyst composition promoted with cobalt, rhodium, cesium or a combination thereof on a previously calcined catalyst comprising at least one Group VIII metal and tin on a support material.