초록 ▼

Catalysts comprising lead doped zirconium compounds are particularly effective in an oxidative process for upgrading low molecular weight alkanes to higher molecular weight hydrocarbons, and especially for upgrading methane to form ethane and ethylene. The catalysts can be employed in a process perf

Catalysts comprising lead doped zirconium compounds are particularly effective in an oxidative process for upgrading low molecular weight alkanes to higher molecular weight hydrocarbons, and especially for upgrading methane to form ethane and ethylene. The catalysts can be employed in a process performed at elevated temperatures and in the presence or absence of gaseous oxygen. The catalysts are substantially free of PbO and uncombined Pb and remain stable for long periods of time.

대표청구항 ▼

A process for the conversion of a low molecular weight alkane to a higher order hydrocarbon comprising contacting said low molecular weight alkane at a reaction temperature of about 500°C. to about 1500°C. with a catalyst of the formula Pb Zrz Aa Bb Ox wherein A is Mg, Ca, Sr, Ba, Zn, Ce, Sc, Y, Ti,

A process for the conversion of a low molecular weight alkane to a higher order hydrocarbon comprising contacting said low molecular weight alkane at a reaction temperature of about 500°C. to about 1500°C. with a catalyst of the formula Pb Zrz Aa Bb Ox wherein A is Mg, Ca, Sr, Ba, Zn, Ce, Sc, Y, Ti, Hf or mixtures thereof; B is Li, Na, K, Rb, Cs or mixtures thereof; and wherein z is about 1 to about 100; a is 0.0 to about 100; b is 0.0 to about 100; x is the number of oxygens needed to fulfill the valence requirements of the other elements; and wherein the catalyst is substantially free of PbO and uncombined Pb, and wherein said low molecular weight alkane comprises predominantly methane.