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Fischer-Tropsch Synthesis over Alumina- Supported Cobalt-Based Catalysts: Effect of Support Variables

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Document pages: 9 pages

Abstract: Different kinds of aluminum precursors wereobtained from precipitating ammonium bicarbonate, ammonium carbonate, and saturatedammonium bicarbonate, then, boehmite (AlO(OH)), ammonium alumina carbonatehydroxide (AACH) and their mixture were obtained, and then, different kinds ofalumina were obtained after calcination. Three catalysts supported on thedifferent alumina were obtained via impregnating cobalt and ruthenium by incipientwetness. The effects of different precipitants on composition of precursorswere studied by XRD, FTIR, andTGA. The property and structure of alumina were studied by XRD and BET.The supported catalysts were studied by characterizations of XRD and H2-TPR,and the catalytic performance for Fischer-Tropsch synthesis(FTS) were evaluated at a fix-bed reactor. The relations among the compositionof precursors, the property of alumina and the catalytic performance ofsupported catalysts were researched thoroughly.

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