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Aromatic saturation and ring opening process

  • US 20070062848A1
  • Filed: 09/01/2006
  • Published: 03/22/2007
  • Est. Priority Date: 09/20/2005
  • Status: Active Grant
First Claim
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1. A process for hydrocracking a feed comprising not less than 20 weight % of one or more aromatic compounds containing at least two fused aromatic rings which compounds are unsubstituted or substituted by up to two C1-4 alkyl radicals to produce a product stream comprising not less than 35 weight % of a mixture of C2-4 alkanes comprising:

  • (i) passing said feed stream to a ring saturation unit at a temperature from 300°

    C. to 500°

    C. and a pressure from 2 to 10 MPa together with from 100 to 300 kg of hydrogen per 1,000 kg of feedstock over an aromatic hydrogenation catalyst to yield a stream in which not less than 60 weight % of said one or more aromatic compounds containing at least two rings which compounds are unsubstituted or substituted by up to two C1-4 alkyl radicals at least one of the aromatic rings has been completely saturated;

    (ii) passing the resulting stream to a ring cleavage unit at a temperature from 200°

    C. to 600°

    C. and a pressure from 1 to 12 MPa together with from 50 to 200 kg of hydrogen per 1,000 kg of said resulting stream over a ring cleavage catalyst; and

    (iii) separating the resulting product into a C2-4 alkanes stream, a liquid paraffinic stream and an aromatic stream.

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