Toyo Engineering Corporation

Catalysts and Chemicals Inc., Far East

Yasuhiro Izawa

Toru Numaguchi

Toshio Matsuhisa

Hideaki Yanaru

Kazuo Shoji

Yasuo Nishioka

Ryuichi Mogami

A catalyst for reforming of hydrocarbons with less reduction in activity. An improved steam-reforming catalyst for hydrocarbons, wherein the active component Ni is supported on an &agr;-Al,O,or CaO&mdash;Al,O,carrier, a part of the active component Ni is combined with the carrier to form a compound NiAl,O,, and carbon is contained in both of the Ni and NiAl,O,components, and the grating constant of Ni and the grating constant of NiAl,O,in the catalyst are increased as compared with those of the catalyst before carbon is added to in both of the said components.

Steam-reforming catalyst for hydrocarbons

To provide an improved steam reforming catalyst for lower hydrocarbons which is highly active and has a high crushing strength. An improved steam reforming catalyst for lower hydrocarbons comprising a support constituted of CaO and Al.sub.2 O.sub.3 and an active component comprising nickel or a platinum-group metal. The content of CaO is 0.5 to 25 wt% based on the catalyst, and at least part of the CaO forms compounds with the A1.sub.2 O.sub.3. The support has a void fraction X of pores with a diameter of 0.5 .mu.m to 20 .mu.m of 0.08 or higher, a void fraction Y of pores with a diameter smaller than 0.5 .mu.m of 0.15 or higher, and a total void fraction Z of 0.23 to 0.8 (provided that Z.ltoreq.(X+Y)).

Steam reforming catalysts for lower hydrocarbons

Growing community of inventors

Chiba, Japan

Yasuhiro Izawa