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    • 42. 发明授权
    • Upgrading low molecular weight hydrocarbons
    • 升级低分子量碳氢化合物
    • US4886931A
    • 1989-12-12
    • US58016
    • 1987-06-04
    • Joseph P. BartekJames F. Brazdil, Jr.John M. HuppRobert K. Grasselli
    • Joseph P. BartekJames F. Brazdil, Jr.John M. HuppRobert K. Grasselli
    • C07C2/84
    • C07C2/84C07C2521/04C07C2521/06C07C2521/08C07C2521/10C07C2521/12C07C2521/16C07C2523/04C07C2523/06C07C2527/224Y10S585/943
    • A multi-component oxide catalyst comprising zinc and an alkali metal is described which is useful particularly for converting methane and/or natural gas to higher molecular weight hydrocarbon products such as ethane and ethylene. The catalyst is characterized by the formulaZn.sub.a A.sub.b M.sub.c M'.sub.d O.sub.xwhereinA is Li, Na, K, or mixtures thereof;M is Al, Ga, Cr, La, Y, Sc, V, Nb, Ta, Cu or mixtures thereof;M' is Cs, Rb, Mg, Ca, Sr, Ba, Sm, Pb, Mn, Sb, P, Sn, Bi, Ti, Zr, Hf, or mixtures thereof;a is from about 1 to about 20;b is from about 0.1 to about 20;c is from about 0 to about 5;d is from about 0 to about 20; andx is a number needed to fulfill the valence requirements of the other elements; provided that(i) at least one of c and d is at least 0.1; and(ii) when M' is Sn, c must be at least 0.1. The process of the present invention involves contacting low molecular weight alkanes at elevated temperatures with oxygen and the catalyst of the invention for a period of time sufficient to provide the desired conversion.
    • 描述了包含锌和碱金属的多组分氧化物催化剂,其特别用于将甲烷和/或天然气转化为较高分子量烃产物如乙烷和乙烯。 催化剂的特征在于式ZnaAbMcM'dOx,其中A为Li,Na,K或其混合物; M是Al,Ga,Cr,La,Y,Sc,V,Nb,Ta,Cu或其混合物; M'是Cs,Rb,Mg,Ca,Sr,Ba,Sm,Pb,Mn,Sb,P,Sn,Bi,Ti,Zr,Hf或它们的混合物; a为约1至约20; b为约0.1至约20; c为约0至约5; d为约0至约20; x是满足其他要素价格要求的数字; 条件是(i)c和d中的至少一个至少为0.1; 和(ii)当M'为Sn时,c必须至少为0.1。 本发明的方法包括使低分子量烷烃在升高的温度下与氧和本发明的催化剂接触足以提供所需转化的时间。