The application of a kind of oxygen carrier with perovskite structure in hydrogen production of chemical chain and preparation

The application of a kind of oxygen carrier with perovskite structure in hydrogen production of chemical chain and preparation

  • CN 102,862,956 B
  • Filed: 07/07/2011
  • Issued: 09/30/2015
  • Est. Priority Date: 07/07/2011
  • Status: Active Grant
First Claim
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1. the application of oxygen carrier in hydrogen production of chemical chain, is characterized in that:

  • this oxygen carrier is the complex metal oxides with perovskite structure, and general formula is AB '"'"' xb 1-xo 3wherein A is rare earth lanthanum, B '"'"' is transition metal copper, B is transition metals cobalt, 0<

    x<

    1, and the temperature of combustion of oxygen carrier in water vapour reactor is 500 ~ 800 DEG C, reduction temperature in fuel reactor is 500 ~ 800 DEG C, the preparation process of oxygen carrier is as follows;

    with Jing Ti/Bao Pian COBALT NITRATE CRYSTALS/FLAKES, lanthanum nitrate, cupric nitrate for presoma, and citric acid or ethylene glycol are complexing agent, wiring solution-forming mixing and stirring;

    Then moisture evaporation is carried out, the colloidal sol of solution went from clear is transformed into the gel of thickness, final drying, roasting, the sample obtained is for having perovskite structure complex metal oxides, and its complexing agent and metal ion mol ratio are 1;

    1 ~ 8;

    1, preparation and stirred solution carry out at 20 ~ 90 DEG C, churning time is 3 ~ 8 hours, and stirring velocity is 200 ~ 500rpm, and drying temperature is 60 ~ 200 DEG C, time of drying is 1 ~ 36 hour, and roasting is roasting 2-15 hour at 400 ~ 1000 DEG C.

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