Modified theta-alumina-supported nickel reforming catalyst and its use for producing synthesis gas from natural gas

摘要

The present invention relates to 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, ;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.