Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1990-08-24
1991-12-24
Shine, William J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502332, 502334, 502335, 502336, B01J 2340
Patent
active
050752774
ABSTRACT:
In the steam reforming catalyst for hydrocarbon according to the present invention, catalyst metal is supported on or in the surface layer of a zirconia carrier containing yttria and having a crystal structure primarily consisting of tetragonal system or tetragonal and cubic systems. Compared with conventional steam reforming catalyst, it has higher reaction efficiency and suppresses carbon deposition extensively even when steam/carbon ratio is low and exhibits higher hydrogen generation efficiency and higher catalyst strength. Particularly, it is suitable as a catalyst for internal reforming type fuel cell.
In the steam reforming catalyst of hydrocarbon of this invention, metal catalyst can be effectively utilized by supporting metal catalyst only on surface layer of zirconia carrier.
REFERENCES:
patent: 3222132 (1965-12-01), Dowden
patent: 3385670 (1968-05-01), Van Hook et al.
patent: 3737291 (1973-06-01), Lhonore et al.
Hashimoto Takao
Ishizaki Fumiya
Saiai Akira
Sakurada Satoshi
Segawa Tomoko
Petroleum Energy Center
Shine William J.
Tonen Corporation
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