Different kinds of aluminum precursors were
obtained from precipitating ammonium bicarbonate, ammonium carbonate, and saturated
ammonium bicarbonate, then, boehmite (AlO(OH)), ammonium alumina carbonate
hydroxide (AACH) and their mixture were obtained, and then, different kinds of
alumina were obtained after calcination. Three catalysts supported on the
different alumina were obtained via impregnating cobalt and ruthenium by incipient
wetness. The effects of different precipitants on composition of precursors
were studied by XRD, FTIR, and
TGA. 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 composition
of precursors, the property of alumina and the catalytic performance of
supported catalysts were researched thoroughly.