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    • 3. 发明专利
    • Process and apparatus for improving flow properties of crude petroleum
    • NZ565562A
    • 2010-01-29
    • NZ56556206
    • 2006-07-21
    • UOP LLC
    • HEDRICK BRIAN WMCGEHEE JAMES FERIKSEN SELMAN ZQAFISHEH JIBREEL A
    • C10G11/00C10C3/00
    • Disclosed is a process for improving flow properties of crude petroleum, comprising processing a first crude stream including cracking said first crude stream with fresh catalyst to form a cracked stream and spent catalyst, separating said cracked stream from said spent catalyst, regenerating said spent catalyst to form said fresh catalyst, recycling said fresh catalyst, and mixing at least part of said cracked stream with a second crude stream. Also disclosed is an apparatus (10) for improving flow properties of crude, comprising: a riser (40) charged with fresh catalyst and having a bottom and a top, wherein a crude conduit (32) delivers a first crude stream into said bottom and an outlet (51) withdraws spent catalyst and a vaporized cracked stream from said top; a vessel (50) in flowable communication with said outlet containing a cyclone (52) for receiving and separating said vaporized cracked stream from said spent catalyst; a regenerator (70) in flowable communication with said vessel (50) for receiving and regenerating said spent catalyst to provide said fresh catalyst; a conduit (74) connected between said riser and said regenerator for recharging said riser with said fresh catalyst; a fractionator (30) in flowable communication with said vessel (50) for receiving vaporized cracked stream and fractionating it into light ends, naphtha, light cycle oil and bottoms; and lines (201, 202) in flowable communication with said fractionator for delivering at least part of said naphtha and at least part of said light cycle oil to a second cmde stream (499).