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US 7,323,147 B2Granted
Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins
AssigneeExxonMobil Chemical Patents Inc.
InventorsDavid Ritchie Lumgair, Jr., James H. Beech, Jr., Michael Peter Nicoletti
Life of this patent
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Abstract
A feed vaporization process and apparatus for oxygenate to olefin conversion is provided which uses a vapor-liquid disengaging drum to separate non-volatiles and/or partial non-volatiles from volatiles in the oxygenate feed and produce a vaporized effluent that is reduced in non-volatiles and/or partial non-volatiles while at the same time maintaining the effluent at optimal temperature and pressure as a feed for oxygenate to olefin conversion.
Claims13
An apparatus for vaporizing an oxygenate-containing feed which comprises:
- a) an oxygenate-containing feed preheater which comprises an inlet for an oxygenate-containing feed of an initial heat content and an outlet for an oxygenate-containing feed having an increased heat content;
- b) an oxygenate vapor-liquid disengaging drum comprising an inlet for receiving said oxygenate-containing feed of increased heat content, a first outlet for removing an oxygenate-containing liquid phase, a second outlet for removing a blowdown fraction and a third outlet for removing an oxygenate-containing vapor phase;
- c) a heat exchanger means for adding heat to said oxygenate-containing liquid phase comprising at least one heat exchanger, external to said vapor-liquid disengaging drum, comprising an inlet for said oxygenate-containing liquid phase having a first heat content and an outlet for an oxygenate-containing vapor phase which is connected to an inlet for said oxygenate vapor-liquid disengaging drum.
Dependencies are inferred from the claim text.