Hydrocarbon upgrading process and reaction section design with r

Details Hydrocarbon upgrading process and reaction section design with r Hydrocarbon upgrading process and reaction section design with r

1989-03-14

1990-09-11

Davis, Curtis R.

Chemistry of hydrocarbon compounds

Aromatic compound synthesis

By ring formation from nonring moiety, e.g., aromatization,...

208137, 208138, 208140, 422198, 585417, 585419, C07C 1202, C07C 5333, C10G 35095

Patent

active

049565109

ABSTRACT:
Valuable product yield and catalyst useful life are improved by regenerating spent catalyst at temperatures below those maintained in the reaction zone. Relatively cold regenerated catalyst is then preheated and reactor effluent product is quenched by directly contacting the regenerated catalyst with hot reactor effluent product. The quenching step minimizes undesirable thermal cracking of valuable product to C.sub.2 -light gas. The process and apparatus are useful both in aromatization and dehydrogenation of aliphatic hydrocarbons.

REFERENCES:
patent: 3756942 (1973-09-01), Cattanach
patent: 3759821 (1973-09-01), Brennan et al.
patent: 3760024 (1973-09-01), Cattanach
patent: 4629818 (1986-12-01), Burress
patent: 4851602 (1989-07-01), Harandi et al.
"M2 Forming-A Process for Aromatization of Light Hydrocarbons", Chen et al., 25 Ind. Eng. Chem. Process Des. Dev., 151 (1986).

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