Combined method of hydrocracking and producing lubricant oil base oil

Combined method of hydrocracking and producing lubricant oil base oil

  • CN 102,041,081 A
  • Filed: 10/16/2009
  • Published: 05/04/2011
  • Est. Priority Date: 10/16/2009
  • Status: Active Application
First Claim
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1. hydrocracking and the combined method of producing lubricant base is characterized in that comprising the steps:

  • (1) hydrocracking tail oil enters and carries out vacuum fractionation in the vacuum still, fractionates out hydrocracking tail oil last running and hydrocracking tail oil lighting end;

    (2) the hydrocracking tail oil last running that fractionates out is used for producing lubricant base;

    (3) the hydrocracking tail oil lighting end that fractionates out loops back hydroeracking unit and carries out hydrocracking reaction.

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