Modified θ-alumina-supported nickel reforming catalysts and its use for producing synthesis gas from natural gas

摘要

The invention is based made supported on the modified θ-Al ₂ O ₃ The nickel-based reforming catalyst, and this, as related to a method of producing synthesis gas from natural gas, and more particularly to a formula of θ-Al ₂ O ₃ with a specific metal carrier phase _{(M 3 -M 4 -ZrO 2 /} θ-Al 2 O 3) in, or nickel by impregnating the mixture of the nickel and co-catalyst (M ₁ -M ₂ -Ni) novel represented by the following formula (1) obtained nickel-fabricating a reforming catalyst, steam reforming, oxygen reforming, or steam for the gas under constant reaction conditions on the catalyst by performing an oxygen mixed reforming reaction, the advantages that can be applied to a natural gas to the different types of reforming reactions to have, the present invention relates from a coke resistant, catalyst stability and the catalytic activity is improved nickel-based reforming catalyst, and this gas using at high temperature than the conventional steam reforming catalyst in the method of manufacturing a synthesis gas.; _{M 1 -M 2 -Ni / M 3} -M 4 -ZrO 2 / θ-Al 2 O 3 ; In the general formula _1: M 1 is an element selected from alkaline metals; M ₂ and M ₃ is an element selected from alkaline earth metals, respectively; M ₄ is an element selected from the group ⅢB and lanthanum group.