摘要:
Nickel based catalyst structures are described herein that include a plurality of metal oxides formed as crystalline phases within the catalyst structures. Each metal oxide of a catalyst structure includes nickel and/or aluminum, where one or more metal oxides includes a nickel aluminum oxide, and the one or more nickel aluminum oxides is greater than 50% by weight of the crystalline phases within the catalyst structure. The catalyst structures further have specific surface areas of at least 13 m 2 /g. Mixed nickel aluminates such as the spinel phase, NiAl 2 O 4 , and NiAl 10 O 16 are shown to have a high stability in reforming reactions. The catalyst structures are resistant to high concentrations of sulfur and are effective in reforming operations for converting methane and other light hydrocarbons to hydrogen and one or more other components. For example, the catalyst structures are effective in coal and biomass gasification systems for the forming and cleanup of synthetic gas.
摘要翻译:没有被描述在镍基催化剂结构包括形成为催化剂结构内的结晶相的金属氧化物的复数。 催化剂结构中的每一个金属氧化物包括镍和/或铝,其中一个或多个金属氧化物包括氧化镍铝,和所述一个或多个镍铝的氧化物大于50重量%的催化剂结构内的晶相的。 催化剂结构还具有至少13米2 /克的比表面积。 混合的镍铝酸盐:如尖晶石相,的NiAl 2 O 4和NiAl金属10 O 16被示出为具有在重整反应的高稳定性。 所述的催化剂结构,以硫的高浓度的抗性和能有效地用于将甲烷和其它轻质烃类和氢的一种或多种其它组分的重整操作。 例如,催化剂结构用于成形和合成气体的净化有效煤和生物质气化系统。