Catalysts for petrochemical catalysis
AssigneeSiluria Technologies, Inc.
InventorsJoel M. Cizeron, Erik C. Scher, Fabio R. Zurcher, Wayne P. Schammel, Greg Nyce, Anja Rumplecker, Jarod McCormick, Marian Alcid, Joel Gamoras, Daniel Rosenberg, Erik-Jan Ras
Life of this patent
Estimating the term…
Abstract
Metal oxide catalysts comprising various dopants are provided. The catalysts are useful as heterogenous catalysts in a variety of catalytic reactions, for example, the oxidative coupling of methane to C2 hydrocarbons such as ethane and ethylene. Related methods for use and manufacture of the same are also disclosed.
Claims51
A catalyst comprising an oxide of a rare earth element, the catalyst comprising:
- the formula Ln14-xLn2xO6, wherein Ln1 and Ln2 are each independently a different lanthanide element, and x is a number ranging from greater than 0 to less than 4;
- and
- at least one doping element from one of groups 1-16, lanthanides, actinides or combinations thereof,
- wherein the catalyst further comprises a C2 selectivity of greater than 50% and a methane conversion of greater than 10% when the catalyst is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperature of 700° C. or less.
A catalyst comprising a rare earth metal oxyhydroxide, rare earth metal oxyhalide, rare earth metal oxynitrate or rare earth metal phosphate, the catalyst further comprising at least one doping element from one of groups 1-16, lanthanides, actinides or combinations thereof, and wherein the catalyst comprises a C2 selectivity of greater than 50% and a methane conversion of greater than 10% when the catalyst is employed as a heterogeneous catalyst in the oxidative coupling of methane at a temperature of 700 ° C. or less.
Dependencies are inferred from the claim text.