Patent ID: 7071239

Claim:
A process for the production of hydrocarbons from synthesis gas comprising converting a mixture of hydrogen and carbon monoxide to a product stream comprising hydrocarbons in a reactor comprising a hydrocarbon synthesis catalyst, wherein the hydrocarbon synthesis catalyst comprises a catalytically active metal selected form the group consisting of cobalt, ruthenium, iron, nickel, and combinations thereof; optionally, a promoter; and a stabilized support prepared by a method comprising drying and calcining a mixture containing a boehmite material and a structural stabilizer or containing a compound of a structural stabilizer and a boehmite material at a calcination temperature between about 500° C. and about 900° C. to form the stabilized support with improved hydrothermal stability, wherein the structural stabilizer comprises at least one element selected from the group consisting of tungsten (W), tantalum (Ta), niobium (Nb), thorium (Th), germanium (Ge), uranium (U), tin (Sn), antimony (Sb), vanadium (V), halfnium (Hf), sodium (Na), boron (B), magnesium (Mg), aluminum (Al), silicon (Si) calcium (Ca), titanium (Ti), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), gallium (Ga), strontium (Sr), zirconium (Zr), thorium (Th), cerium (Ce), praseodymium (Pr), neodymium (Nd), promethium (Pm), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium (Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), oxides thereof, and combinations thereof.