C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 307/60 (2006.01) C07B 33/00 (2006.01) C07B 41/00 (2006.01) C07C 17/152 (2006.01) C07C 21/06 (2006.01) C07C 45/33 (2006.01) C07C 45/34 (2006.01) C07C 47/07 (2006.01) C07C 51/215 (2006.01) C07C 253/24 (2006.01) C07C 255/08 (2006.01) C07D 301/08 (2006.01) C07D 303/04 (2006.01) C07D 307/89 (2006.01)
Patent
CA 2175781
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 bedsof zeolite 3A are regenerated by passing heated hydrocarbon-depleted waste gas therethrough.
Acharya Divyanshu R.
Tamhankar Satish S.
Gowling Lafleur Henderson Llp
The Boc Group Inc.
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