Mitsubishi Chemical Corporation

Takeshi Takeuchi

Hiroshi Kameo

Souichi Orita

Kazuyuki Iwakai

Hiroshi Takeo

Hidenobu Kajitani

Disclosed is a method for producing a conjugated diene by subjecting a monoolefin having a carbon atom number of 4 or more and an oxygen gas to an oxidative dehydrogenation reaction by using a molybdenum-containing metal oxide catalyst under heat removal with a coolant, wherein an amount of molybdenum adhered onto a cooling heat transfer surface within a reactor is kept at not more than 20 mg/m, or not only a surface roughness Ra of a cooling heat transfer surface within a reactor is not more than 3 &#x3bc;m, but a temperature difference between a reaction temperature and a coolant temperature is in the range of from 5 to 220&#xb0; C.

Growing community of inventors

Okayama, Japan

Takeshi Takeuchi