×

Hydroconversion multi-metallic catalyst and method for making thereof

  • US 8,658,558 B2
  • Filed: 10/18/2011
  • Issued: 02/25/2014
  • Est. Priority Date: 11/11/2010
  • Status: Active Grant
First Claim
Patent Images

1. A process for forming a bulk hydroprocessing catalyst, the method comprises:

  • co-precipitating at reaction conditions at least a Group VIB metal precursor feed and at least a Promoter metal precursor feed selected from Group VIII, Group IIB, Group IIA, Group IVA and combinations thereof, to form a mixture comprising a catalyst precursor;

    isolating the catalyst precursor from the mixture, forming a supernatant containing at least a Promoter metal residual and at least a Group VIB metal residual in a total amount of at least 10 mole % of the metal precursor feeds;

    supplying the supernatant to a reactor vessel having a plurality of electrodes having a positive or a negative charge provided by a power supply, wherein the electrodes dissolve in water generating an electrode dissolution product;

    reacting the electrode dissolution product with at least one of the metal residuals, forming a slurry containing insoluble metal compounds;

    isolating the insoluble metal compounds from the slurry, forming a first effluent stream containing less than 50 mole % of metal ions in the metal residuals;

    treating the first effluent stream to recover at least 80 mol % of the metal ions to form at least a metal precursor feed;

    recycling the metal precursor feed to the co-precipitating step; and

    sulfiding the catalyst precursor forming the bulk catalyst.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×