Loading patent…
OwnerMadan Mohan Bhasin, David A. Berryinventors
Estimating the term…
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 catalyst for the oxidative dehydrogenation of methane, or methane with ethane, the catalyst comprising manganese in the form of an oxide, mixed oxide, hydroxide, carbonate, oxycarbonate, or a salt, or a combination thereof, wherein said catalyst, when used for the oxidative dehydrogenation at a pressure above about 5 atm, at a reaction temperature below about 600° C. as measured at the outside of the reactor wall, and employing gas hourly space velocities above about 1,000 h−1, achieves a conversion of at least about 10% into at least one higher hydrocarbon, its derivatives, or amines, and a selectivity for C2 or C3 hydrocarbons, 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.