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PROCESS FOR ISOMERIZING A FEED STREAM INCLUDING ONE OR MORE C4-C6 HYDROCARBONS

  • US 20120184793A1
  • Filed: 01/13/2011
  • Published: 07/19/2012
  • Est. Priority Date: 01/13/2011
  • Status: Active Grant
First Claim
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1. A process for isomerizing a feed stream comprising one or more C4-C6 hydrocarbons, comprising:

  • A) contacting the feed stream in an isomerization reaction zone with an isomerization catalyst at isomerization conditions to produce an isomerization zone effluent;

    B) passing at least a portion of the isomerization zone effluent to a stabilizer zone and recovering a stabilizer overhead stream comprising one or more C5

    hydrocarbons, a bottom stream comprising at least about 85%, by weight, one or more C6+ hydrocarbons, and a stripper feed stream comprising at least about 10%, by weight, one or more C5+ hydrocarbons;

    C) passing the stripper feed stream to a stripping zone and separating the stripper feed stream into a stripper overhead stream comprising at least about 5%, by weight, one or more C4

    hydrocarbons and a stripper bottom stream comprising at least about 90%, by weight, one or more C5+ hydrocarbons; and

    (D) recycling at least a portion of the stripper bottom stream to a deisopentanizer zone and passing a stream from the deisopentanizer zone to the isomerization reaction zone.

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