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Alkylation process unit with recyle of hydrogen and recovery of hydrogen chloride

  • US 9,302,200 B2
  • Filed: 05/24/2013
  • Issued: 04/05/2016
  • Est. Priority Date: 07/31/2012
  • Status: Active Grant
First Claim
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1. An alkylation process unit, comprising:

  • a) a hydrogenation reactor (100), wherein a used catalyst (70) comprising an ionic liquid catalyst and a chloride produces a regenerated catalyst effluent (10);

    b) a fractionation unit (200) fluidly connected to the hydrogenation reactor (100), that separates at least a portion of the regenerated catalyst effluent (10) into a gas fraction comprising a hydrogen gas (20) and into a light hydrocarbon fraction comprising a hydrogen chloride (30);

    c) a first connection between the fractionation unit (200) and the hydrogenation reactor (100) for transmitting at least a part of the gas fraction to the hydrogenation reactor (100); and

    d) a second connection between the fractionation unit (200) and an alkylation reactor (300) to transmit at least an amount of the light hydrocarbon fraction to the alkylation reactor (300).

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