PRODUCTION OF LOWER OLEFINS

摘要

PURPOSE:To produce lower olefins in high yield and selectivity from a lower alcohol without deteriorating catalyst activity for a long period. CONSTITUTION:The aforementioned method is a method for producing lower olefins by dehydrating a 2-4C lower alcohol using a gamma-alumina catalyst having <=0.3wt.% sum total of impurities except SiO2 in which sulfur content is <=0.2wt.% expressed in terms of SO4<--> and sodium content is <=0.05wt.% expressed in terms of NaO2.