Chemistry: physical processes – Physical processes – Crystallization
Patent
1972-01-07
1977-02-01
Tayman, Jr., James H.
Chemistry: physical processes
Physical processes
Crystallization
23289, 2606833, 260696, 208146, B01J 802, C07C 334
Patent
active
040059855
ABSTRACT:
A method and an improved platinum-tin promoted zinc aluminate catalyst reactor for dehydrogenation of a paraffinic hydrocarbon feed stream as first and second layers of silica-free particles, each positioned in contact with and on opposed surfaces of the catalyst across the direction of feed stream flow through the reactor for preventing the poisoning of said catalyst.
REFERENCES:
patent: 2760917 (1956-08-01), Ward
patent: 2915375 (1959-12-01), Shirk et al.
patent: 2988579 (1961-06-01), Watkins
patent: 3479146 (1969-11-01), Hochman et al.
Phillips Petroleum Company
Tayman, Jr. James H.
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