Patent ID: 9610565
Date: 2017-04-04
CPC Classifications: B01J,C01F,C01G,C01P

Claim:
1. A method for producing metal oxide catalysts for oxidative coupling of methane reactions, comprising: measuring predetermined stoichiometric amounts of metal cation contributors to define a predetermined metal cation precursor; measuring a predetermined amount of reducing fuel; mixing the predetermined amount of fuel, the predetermined metal cation precursor and water to define an aqueous solution; evaporating water from the aqueous solution to define a concentrated solution; igniting the concentrated solution; combustively reacting the metal cation precursor with the fuel to yield a metal oxide; flowing methane from a first source over the metal oxide; flowing oxygen from a second source over the metal oxide; mixing methane from the first source with oxygen from the second source in the presence of the metal oxide; and catalyzing an oxidative coupling of methane reaction with the metal oxide; wherein the methane from the first source and the oxygen from the second source are kept separate until they are introduced and mixed together in the presence of the metal oxide; wherein the metal cation precursor is selected from the group consisting of strontium nitrate, aluminum nitrate nonahydrate, sodium tungsten oxide dihydrate, manganese nitrate tetrahydrate, tetraethoxysilane, and combinations thereof, and wherein the reducing fuel is selected from the group consisting of glycine, hydrazine, oxalates, and combinations thereof.