Clariant Catalysts (japan) K.k.

Sued-chemie Catalysts Japan, Inc.

Clariant Catalysts K.k.

Shinya Hirahara

Nobuaki Kodakari

Yuji Mishima

Yuma Kuraguchi

Takashi Kusaba

A catalyst which is highly active in dehydrogenation reaction of an alkylaromatic hydrocarbon not only in high-temperature regions (e.g. 600 to 650&#xb0; C.) as found in the inlet of a catalyst bed in an apparatus for the production of SM but also in low-temperature regions (e.g. under 600&#xb0; C.) as found in the outlet of a catalyst bed in an apparatus for the production of SM, where the temperature decreases as a result of endothermic reaction; and a process for producing the catalyst; and a dehydrogenation process using the catalyst. The catalyst contains iron (Fe), potassium (K), and cerium (Ce), and at least one rare earth element other than cerium.

Dehydrogenation catalyst for alkylaromatic compound, process for producing same, and dehydrogenation method using same

A dehydrogenation catalyst composition for use in preparing an alkenyl aromatic compound by dehydrogenation of an alkyl aromatic compound, a method for preparing the catalyst, and a process for using the catalyst in a dehydrogenation reaction. Carbon dioxide (CO) is present in the reaction in a molar ratio of 0.015 to 0.20 based on an aromatic compound in a material gas. The catalyst further includes an iron compound, an alkali metal, and about 13 to about 60 wt % of a rare earth element calculated as an oxide.

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Toyama, Japan

Shinya Hirahara