• CN 105,713,655 A
  • Filed: 07/15/2013
  • Published: 06/29/2016
  • Est. Priority Date: 08/03/2012
  • Status: Active Application
First Claim
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1. upgrading residual hydrocarbon reduce the method that products therefrom forms the trend of asphaltene precipitation in downstream process, described method includes:

  • A) residual hydrocarbon fraction and hydrogen is made to contact with hydrogenation conversion catalyst described residual hydrocarbon fraction is changed into light hydrocarbon at least partially in hydrocracking reaction district;

    B) effluent is reclaimed from described hydrocracking reaction district;

    C) hydrogen is made to contact with Residual oil hydrotreating catalyst with at least some of of described effluent;

    D) described effluent is separated to reclaim two or more hydrocarbon-fractions,Wherein step (c) and (d) carry out parallel in reactor/stripper, and described reactor/stripper has the Residual oil hydrotreating catalyst contained in the bottom of described reactor/stripper, andThe distillate hydroprocessing catalysts that wherein said reactor/stripper contains in the top further contained in described reactor/stripper.

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