Chemistry: physical processes – Physical processes – Crystallization
Patent
1975-08-26
1978-05-16
Favors, Edward G.
Chemistry: physical processes
Physical processes
Crystallization
23288F, F01N 315
Patent
active
040896544
ABSTRACT:
A catalyst system capable of operating at very high temperatures is disclosed. The catalyst is divided into upstream and downstream portions, the upstream portion being protected against both thermal conduction and radiant heat transfer from the downstream portion. Advantageously, the upstream portion may use a more active catalyst composition than the downstream portion.
REFERENCES:
patent: 2976853 (1961-03-01), Hunter et al.
patent: 3754870 (1973-08-01), Carhahan et al.
patent: 3785781 (1974-01-01), Hervert et al.
patent: 3887741 (1975-06-01), Dwyer
patent: 3953176 (1976-04-01), Santaza et al.
patent: 3969083 (1976-07-01), Givens et al.
Hindin Saul G.
Polinski Leon M.
Roberts George W.
Engelhard Minerals & Chemicals Corporation
Favors Edward G.
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