C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/648.7, 260/6
C07C 41/06 (2006.01) C07C 1/20 (2006.01) C07C 2/00 (2006.01) C07C 2/12 (2006.01) C07C 11/02 (2006.01) C07C 41/09 (2006.01) C07C 43/04 (2006.01) C10L 1/02 (2006.01)
Patent
CA 2026966
F-5525 ABSTRACT A process is disclosed for integrating etherification to produce diisopropyl ether (DIPE) with processes to convert oxygenates and hydrocarbons to gasoline boiling range hydrocarbons in a manner which eliminates the requirement to recycle unreacted C3 hydrocarbons to the DIPE etherification zone. In the novel integrated process the unreacted C3 hydrocarbons are separated as vapor and passed to a conversion zone in contact with acidic metallosilicate catalyst. Depending on the conversion conditions the unreacted C3 hydrocarbons are converted to gasoline, distillate and/or aromatics, preferably in conjunction with additional feedstock containing lower oxygenates, olefins or paraffins. Also, isopropanol (IPA) and minor by-product dimers and trimers of propene from the DIPE reaction are separated and passed as a feedstream to the oxygenates and hydrocarbon conversion zone. In one embodiment, the water feedstream for the DIPE reactor is first passed to the DIPE effluent high pressure separator where it serves to extract a portion of the IPA in the effluent stream. The aqueous effluent from the high pressure separator is then introduced into the etherification zone for hydration of propene and etherification to form DIPE.
Harandi Mohsen N.
Owen Hartley
Kirby Eades Gale Baker
Mobil Oil Corporation
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