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OwnerMadan Mohan Bhasin, David A. Berryinventors
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A catalyst for the oxidative dehydrogenation of methane and/or ethane including manganese in the form of an oxide, mixed oxide, hydroxide, carbonate, oxycarbonate and/or a salt, and in embodiments further including tungsten, one or more alkali metals in the form of an oxide, mixed oxide, hydroxide, carbonate, oxycarbonate and/or a salt, and optionally a rare earth metal oxide, which when used for the oxidative dehydrogenation of the lower hydrocarbon at a pressure ≥5 atm, and employing GHSV≥1,000 h−1, has: a conversion of ≥10% into at least one higher hydrocarbon, and a selectivity for C2 and/or C3 of ≥40%, for ≥15 days. Further, a catalytic process for the oxidative dehydrogenation of methane and/or ethane, the process occurring in the presence of such a catalyst, operating at such pressures, temperatures, and GHSV, producing such conversion and selectivity for ≥15 days, thereby resulting in yields ≥20%.
A catalytic process for the oxidative dehydrogenation of methane or methane with ethane, the process occurring in the presence of a catalyst comprising manganese in the form of an oxide, mixed oxide, hydroxide, carbonate, oxycarbonate or a salt, or a combination thereof, wherein the process operates at pressures above about 5 atm, at reaction temperatures below about 600° C., and utilizes gas hourly space velocities above about 5,000 h−1, wherein the process has a conversion of at least 10% into at least one higher hydrocarbon, its derivatives and amines, and a selectivity for C2 or C3, or both, of at least about 40%, for a period of at least 15 days without requiring regeneration.
Dependencies are inferred from the claim text.