Foam catalysts, method of manufacture and method of using

Details Foam catalysts, method of manufacture and method of using Foam catalysts, method of manufacture and method of using

1987-08-28

1989-03-07

Rosenberg, Peter D.

Catalyst, solid sorbent, or support therefor: product or process

Zeolite or clay, including gallium analogs

B01J 2904

Patent

active

048106852

ABSTRACT:
A catalyst, or a precursor thereto, comprises, as the active material or as a support therefor, a ceramic foam having a network of irregular passages extending therethrough, said passages having an average minimum dimension in the range 20 to 300 .mu.m, said foam having a total porosity in the range 40 to 85% and an apparent density of at least 0.7 g.cm.sup.-3. The foam may be made by forming a negative replica of an open cell plastics foam by impregnation of the latter with a dispersion of the ceramic material, followed by drying and calcining the impregnated foam to remove the plastics material and to cause the ceramic material to sinter.
For a steam reforming catalyst the ceramic may be alpha alumina and the active material nickel and/or cobalt.

REFERENCES:
patent: 4024212 (1977-05-01), Dore et al.
patent: 4257810 (1981-03-01), Narumiya
patent: 4308233 (1981-12-01), Narumiya et al.
patent: 4560478 (1985-12-01), Narumiya

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