Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1982-11-03
1984-08-07
Shine, W. J.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502344, 502347, 502527, B01J 2338, B01J 2348, B01J 3500
Patent
active
044644825
ABSTRACT:
A three dimensional interstitial catalyst support and a catalyst system comprising the support for use in (especially pressure-sensitive) surface reactions involving disturbed fluid flow, especially trickle feed three phase reactions such as the hydrogenation of crotonaldehydes or butyraldehyde. The support comprises a three dimensional self-supporting form-stable interstitial structure composed of five or more superimposed intermeshing layers of knitted cloth and the volume of the interstices in the structure is from 60 to 98 (preferably at least 85) % of the volume of the structure. The combination of the use of intermeshing knitted wire, form-stability and an open structure allows disturbances comprising components of motion transverse to the general flow of the fluid through the support to be imparted by the catalyst system with less risk of blockages, flooding or damage by attrition and hence less need to increase pressure during a reaction which is undesirable in pressure sensitive reactions. Also a method for making the structures by rolling up knitted wire cloth, compressing it to the pre-determined volume and annealing.
REFERENCES:
patent: 2750346 (1956-06-01), Sherwood
patent: 3362783 (1968-01-01), Leak
patent: 3874645 (1975-04-01), Aguinet et al.
patent: 3956192 (1976-05-01), Nicolai
patent: 4293447 (1981-10-01), Inaba et al.
patent: 4363753 (1982-12-01), Bozon et al.
Bird Alfred J.
King Frank
Johnson Matthey Public Limited Company
Shine W. J.
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