Catalyst for converting methane into higher hydrocarbon products
AssigneeEniricerche S.p.A.
InventorsGiuseppe Fornasari, Giuseppe Bellussi
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Abstract
Methane is converted into higher hydrocarbon products by oxidative coupling, by bringing a gaseous mixture containing methane and oxygen into contact with a solid catalyst formed from calcium oxide, magnesium oxide, a lanthanide oxide plus possibly lithium oxide, wherein: the lithium content is between 0 and 0.20 wt %, the calcium/magnesium atomic ratio is between 0.08 and 0.7, and the (calcium+magnesium)/lanthanide atomic ratio is between 0.8/1 and 8/1, and preferably between 2/1 and 4/1.
Claims10
A solid catalyst for converting methane into higher hydrocarbon, comprising calcium oxide, magnesium oxide, a lanthanide oxide and optionally lithium oxide, where:
- in the following expressions said lithium oxide, calcium oxide, magnesium oxide and lanthanide oxide are measured as lithium content, calcium content, magnesium content or lanthanide content, respectively, by weight of the catalyst,
- said lithium content is between 0 and 0.20 wt. %,
- a calcium/magnesium atomic ratio is between 0.08 and 0.7, and
- a (calcium+magnesium)/lanthanide atomic ratio is between 0.8/1 and 8/1.
Dependencies are inferred from the claim text.