Preparation method of hierarchical porous material-loaded cobalt-based catalyst
A cobalt-based catalyst and multi-stage pore technology, which is applied in the direction of molecular sieve catalysts, chemical instruments and methods, and the preparation of liquid hydrocarbon mixtures, can solve the problems of non-interconnection, zeolite uniformity, loading, etc., to avoid diffusion limitations, high water Thermal stability, the effect of high thermal stability
Inactive Publication Date: 2015-04-29
华文蔚
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The invention discloses a preparation method of a hierarchical porous material-loaded cobalt-based catalyst. The method comprises the following steps: (1) evenly mixing a silicon source, an aluminum source, ethanol, NH3 and H2O at the ratio of 1 to (20-30) to (25-35) to (0.1-0.4) to (1-3), and adding a template agent at the mass ratio of the template agent to the aluminum source being (0.5-1) to 1; (2) putting the mixed liquid obtained from the step (1) into a crystallization kettle lined with polytetrafluoroethylene, filtering, washing, drying and removing the template agent through three-section temperature control roasting; (3) carrying out acid treatment on a carrier precursor to obtain a hierarchical porous carrier; and (4) dipping a saline solution dissolved with cobalt or a saline solution of cobalt and non-noble metal into the hierarchical porous material by adopting an equivalent-volume impregnation method for 10-48 hours, drying at 100-130 DEG C, and roasting at 300-600 DEG C for 4-10 hours, tabletting, and screening to prepare the hierarchical porous material-loaded cobalt-based catalyst.
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