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
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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.
Claims27
A catalyst blend comprising at least one first catalyst and at least one second catalyst, wherein the at least one first catalyst has a first oxidative coupling of methane (OCM) activity at a first temperature, and the at least one second catalyst has a second OCM activity which is lower than the first OCM activity at the first temperature, and wherein the second OCM activity is increased at a second temperature which is higher than the first temperature.
A catalyst comprising a mixed oxide of magnesium and manganese, wherein the catalyst further comprises lithium and boron dopants and at least one doping element from groups 4, 9, 12, 13 or combinations thereof, wherein the catalyst comprises a C2 selectivity of greater than 50% and a methane conversion of greater than 20% when the catalyst is employed as a heterogenous catalyst in the oxidative coupling of methane at a temperature of 750° C. or less.
A catalyst comprising a mixed oxide of manganese and tungsten, wherein the catalyst further comprises a sodium dopant and at least one doping element from groups 2, 16 or combinations thereof.
A catalyst comprising a lanthanide oxide doped with an alkali metal, an alkaline earth metal or combinations thereof, and at least one other dopant from groups 3-16.
-32. (canceled)
Dependencies are inferred from the claim text.