Jgc Corporation

Japan Gasoline Co., Ltd.

Hiroo Matsuoka

Goro Sato

Tomiaki Yamada

Akio Furuta

Hirokazu Fujie

Takao Takinami

Tsutomu Toida

Fusao Nishida

Seiichi Matsuoka

Masatoshi Yamada

Senji Takenaka

Kouji Tamura

Tsunekichi Yamabe

Tetsuo Fujita

It has been believed that the Claus reaction in water without additive gives no more than very low conversion and some additive such as buffer or catalyst must be used to attain satisfactory H.sub.2 S conversion. However, it was discovered that when H.sub.2 S and SO.sub.2 are introduced in water simultaneously and continuously for hours, the conversion increased gradually and became steady at high level. The present invention was accomplished base on this inventive knowledge.

Process for the desulfurization of gas containing hydrogen sulfide

A catalyst for the synthesis of methane by the hydrogenation of carbon monoxide and/or carbon dioxide, comprising alumina, nickel and barium or sodium; and a process for the preparation of said catalyst, comprising firstly having barium or sodium carried on alumina and secondly having nickel carried thereon.

Process for the preparation of a catalyst for the synthesis of methane

Solid supported catalysts for catalytic reduction of nitrogen oxide in waste gases utilizing ammonia as the reducing agent, the catalyst comprising at least one metallic oxide, sulfate or phosphate of a first transition metal supported on an alumina or silica-alumina carrier; the carrier containing from 0.03 to 20% by weight sulfur, based on the weight of the carrier, calculated as a sulfate or sulfite radical.

Solid supported catalysts for catalytic reduction of nitrogen oxides in

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Ebina, Japan

Hiroo Matsuoka