Modified amp;thgr;-Al2O3-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas

摘要

A modified &thgr;-Al₂O₃-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas, more specifically to a nickel reforming catalyst expressed by the following formula 1, having improved coke resistance, high-temperature catalysis stability and catalytic activity, which is prepared by coating nickel or mixture of nickel and cocatalyst (M₁—M₂—Ni) on a &thgr;-Al₂O₃ support modified with metal (M₃—M₄—ZrO₂/&thgr;-Al₂O₃), and its use for producing synthesis gas from natural gas through steam reforming, oxygen reforming or steam-oxygen reforming,; $PTEXTPDATM/PDATHILSBPDAT1/PDAT/SB/HILPDAT\—M/PDATHILSBPDAT2/PDAT/SB/HILPDAT\—Ni/M/PDATHILSBPDAT3/PDAT/SB/HILPDAT\—M/PDATHILSBPDAT4/PDAT/SB/HILPDAT\—ZrO/PDATHILSBPDAT2/PDAT/SB/HILPDAT/\&thgr;-Al/PDATHILSBPDAT2/PDAT/SB/HILPDATO/PDATHILSBPDAT3/PDAT/SB/HILPDAT\ \ (1)\; /PDAT/PTEXT$ ;wherein M₁ is an alkali metal, each of M₂ and M₃ is an alkaline earth metal; and M₄ is a IIIB element or a lanthanide.