Fischer-Tropsch synthesis method for increasing liquid hydrocarbon selectivity

Fischer-Tropsch synthesis method for increasing liquid hydrocarbon selectivity

  • CN 101,186,550 B
  • Filed: 11/16/2006
  • Issued: 09/12/2012
  • Est. Priority Date: 11/16/2006
  • Status: Active Grant
First Claim
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1. one kind is improved optionally Fischer-Tropsch synthesis method of liquid hydrocarbon, is included under the Fischer-Tropsch synthesis condition, and hydrogeneous and the gas mixture of carbon monoxide are contacted with fischer-tropsch synthetic catalyst in first reactor drum (3);

  • Go into first high pressure hot separator (5) from the effusive material of first reactor drum (3) and carry out gas-liquid separation;

    Liquid is wherein reclaimed as the thick product of Fischer-Tropsch synthetic;

    Gas is gone into first cold high pressure separator (8) and is carried out gas-liquid separation;

    Discharging water wherein, under the Fischer-Tropsch synthesis condition, gas is gone into second reactor drum (12) with liquid hydrocarbon and is contacted with fischer-tropsch synthetic catalyst;

    Go into second high pressure hot separator (14) from the effusive material of second reactor drum (12) and carry out gas-liquid separation;

    Liquid is wherein reclaimed as the thick product of Fischer-Tropsch synthetic;

    Gas is gone into second cold high pressure separator (21) and is carried out gas-liquid separation;

    Gas wherein is all or part of goes into first reactor drum (3) and/or second reactor drum (12) circulation, and liquid is gone into light pressure separator (23) and carried out the hydrocarbon water sepn, reclaims hydrocarbon product wherein;

    Said fischer-tropsch synthetic catalyst is by the method preparation that comprises with the solution impregnating carrier that contains the cobalt metal component, and described dipping satisfies;

    V L/ V C=0.01~

    0.99;

    Wherein, V LBe steeping fluid volume, V CPore volume for carrier.

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