Process for the production of petrochemicals

Details Process for the production of petrochemicals Process for the production of petrochemicals

1995-06-23

1997-07-08

Dentz, Bernard

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549256, 549257, 549258, 549260, 558320, 568575, 570224, C07D30760

Patent

active

056463049

ABSTRACT:
A petrochemical is produced by the vapor phase reaction of a hydrocarbon with air in the presence of a suitable catalyst. The petrochemical is removed from the reactor effluent, and part or all of the remaining petrochemical-free gas stream is passed through a hydrocarbon-selective adsorbent, which adsorbs hydrocarbon from the gas stream, leaving a hydrocarbon-depleted waste gas. Hydrocarbon is purged from the adsorbent with air, and the air-hydrocarbon mixture is recycled to the partial oxidation reactor. The purge air, and preferably both the purge air and the petrochemical-free gas stream are dried by passage through beds of zeolite 3A prior to being introduced into the hydrocarbon-selective adsorbent, and the beds of zeolite 3A are regenerated by passing heated hydrocarbon-depleted waste gas therethrough.

REFERENCES:
patent: 4231943 (1980-11-01), Paradis et al.
patent: 4987239 (1991-01-01), Ramachandran et al.
patent: 5126463 (1992-06-01), Ramachandran et al.
patent: 5262547 (1993-11-01), Ramachandran et al.

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