METHOD FOR PREPARING REFRACTORY ALLOY-BASED POLYMETALLIC OXIDE CATALYSTS FOR THE PARTIAL OXIDATION OF HYDROCARBONS INTO SYNTHESIS GAS

摘要

The invention relates to a method for preparation of oxide-polymetallic catalysts containing platinum-group metals for steam-oxidative conversion of hydrocarbons to obtain carbon monoxide and hydrogen. The method comprises treatment of NiO and COOby solutions of Al, Ce, Zr nitrates and palladium (Pd(NH)Cl), platinum (H[PtCl]∙6HO) and rhodium (H[RhCl]) compounds followed by drying, carbonization of the obtained material in a methane flow at 550°C, preparation of slurry from this material, pseudo-boehmite and tetraisopropoxysilane, filling foam nichrome pores with obtained material suspension, elimination of water at 80°C, calcinating during 3 h in an atmosphere of argon at 1300°C, elimination of carbon by water vapors at 600°C during 3 h. The technical result is development of a highly efficient heterogeneous catalyst.