초록 ▼

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 formula ZnaAbMcM′dOx wherein A is

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 formula ZnaAbMcM′dOx wherein A 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; and x 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.

대표청구항 ▼

A process for the conversion of low molecular weight alkanes to higher molecular weight hydrocarbons comprising contacting said low molecular weight alkanes, at an elevated temperature, with oxygen and a catalyst of the formula ZnaAbMcM′dOx wherein A is Li, Na, K, or mixtures thereof; M is Al, Ga, C

A process for the conversion of low molecular weight alkanes to higher molecular weight hydrocarbons comprising contacting said low molecular weight alkanes, at an elevated temperature, with oxygen and a catalyst of the formula ZnaAbMcM′dOx wherein A 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; and x 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.