Tosoh Corporation

Yutaka Teshima

Shunji Inoue

Yasuhiro Kojima

Satoshi Onishi

A catalytic combustion reactor system comprises a heat exchange unit that comprises a bundle of open-ended tubes, the bundle having first and second collective ends, the first collective end adjoining a catalytic reactor that comprises a plurality of catalyst containing housings each of which is provided with an opening for the inflow of fluid for combustion and an opening for the outflow of fluid combustion product; an outer shell that envelopes the adjoined heat exchange unit and catalytic reactor and permits the flow of fluid to contact the heat exchange tube surfaces to absorb heat generated by the combustion reaction and to enter the inlet openings of the catalyst containing housings, the shell having a single fluid inlet in the area of the second collective end of the heat exchange unit, thereby allowing contact of the entire length of the tubes of the bundle with the incoming fluid for the exchange of heat; and a single outlet at the second collective end of the heat exchange unit which collects combustion fluid that is discharged from the outlet of said fluid combustion product and which traverses the length of each heat exchange tube.

Catalytic combustion reactor with a heat exchanger tube bundle housed therein, catalytic structure and method for carrying out catalytic combustion-reaction using the reactor and the catalytic structure

Process for producing vinylchloride monomer by pyrolysis of 1,2-dichloroethane comprising carrying out heat exchange between a high temperature cracked gas produced as a result of the pyrolysis product and the 1,2-dichloroethane which is introduced into the pyrolysis furnace with a flow rate of the cracked gas at 5 m/s or more but less than 20 m/s until the cracked gas is cooled down to 180.degree.-350.degree. C. and introducing the 1,2-dichloroethane into the furnace for the pyrolysis.

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Yamaguchi-ken, Japan

Yutaka Teshima