| abstract |
The present invention provides a method for producing olefins with high yield using ethanol as a raw material, and a method capable of efficiently improving the yield of propylene. An olefin is produced by contacting a zeolite catalyst having a pentasil structure modified with zirconium and phosphorus with ethanol as a raw material. Moreover, the amount of propylene in a production | generation olefin can be adjusted by using dimethyl ether and / or methanol with a raw material as a raw material, and controlling the supply ratio. [Selection figure] None |