Fuel and related compositions – Liquid fuels – Organic oxygen compound containing
Patent
1989-10-20
1992-04-07
Medley, Margaret B.
Fuel and related compositions
Liquid fuels
Organic oxygen compound containing
44446, 568695, 568697, 568698, 568699, C10L 500
Patent
active
051024284
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 C.sub.3 hydrocarbons to the DIPE etherification zone. In the novel integrated process the unreacted C.sub.3 hydrocarbons are separated as vapor and passed to a conversion zone in contact with acidic metallosilicate catalyst. Depending on the conversion conditions the unreacted C.sub.3 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.
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Harandi Mohsen N.
Owen Hartley
McKillop Alexander J.
Medley Margaret B.
Mobil Oil Corporation
Speciale Charles J.
Wise L. G.
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