By the production of high purity cumene of non-extracted feed and wherein hydrocarbon composition useful therein

By the production of high purity cumene of non-extracted feed and wherein hydrocarbon composition useful therein

  • CN 101,605,874 B
  • Filed: 01/08/2008
  • Issued: 08/19/2015
  • Est. Priority Date: 02/12/2007
  • Status: Active Grant
First Claim
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1. the hydrocarbon compositions that employing is prepared by reformate prepares the method by the cumene product being present in cumene purity by weight at least 99.50 per-cent in product, and described hydrocarbon compositions extracts, and described method comprises:

  • A () provides reformate, it comprises (i) C 5-hydro carbons;

    (ii) benzene;

    (iii) C 7+aromatic hydrocarbon;

    (iv) there is based at least one of reformate weight 1 to 75 weight percentage the C of the boiling point under pressure 101.3kPa-a in benzene boiling point 10 DEG C 6+non-aromatic hydrocarbon;

    B () is by the C of distillation removing from described reformate 4-hydro carbons and C 7+aromatic hydrocarbon is to form hydrocarbon compositions;

    C () adopts the catalyzer comprising at least one in crystallization MCM-22 class material and zeolite beta molecular sieve at least part of liquid phase, with the propylene alkylating benzene be present in the hydrocarbon compositions not extracting described reformate, condition comprises temperature 110 DEG C to 170 DEG C scopes, be enough to pressure benzene and propylene remained at least part of liquid phase, propylene to the mol ratio of benzene in 0.001;

    1 to 0.75;

    1 scope, and feed weight space time velocity 0.1 to 10hr -1scope, wherein crystallization MCM-22 class material is selected from MCM-22, PSH-3, SSZ-25, ERB-1, ITQ-1, ITQ-2, ITQ-30, MCM-36, MCM-49, MCM-56 and UZM-8;

    With D the product of () distilation steps (c) is to produce the cumene product by purity by weight at least 99.50 per-cent being present in cumene in cumene product.

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