Boron-promoted reducible metal oxides and methods of their use
This patent describes an improved method for dehydrogenating dehydrogenatable hydrocarbons which comprise contacting a gas comprising dehydrogenatable hydrocarbons at oxidative dehydrogenation conditions with a solid comprising at least one oxide of at least one metal which oxides when contacted with dehydrogenatable hydrocarbons at oxidative dehydrogenation conditions are reduced and produce dehydrogenated hydrocarbons and water. The improvement comprises conducting the contacting in the presence of a promoting amount of at least one member of the group consisting of boron and compounds thereof, the solid being substantially free of catalytically effective iron. This patent describes an improved method for dehydrogenating dehydrogenatable hydrocarbons which comprises contacting a gas comprising dehydrogenatable hydrocarbons with a solid comprising at least one oxide of at least one metal which oxides when contacted with dehydrogenatable hydrocarbons are reduced and produced dehydrogenated hydrocarbons and water. The improvement comprises conducting the contacting in the presence of: at least one member of the group consisting of Li and compounds thereof, at least one member selected from the group consisting of boron and compounds thereof, and at least one member of the group consisting of alkaline earth metals and compounds thereof. This patent describes an improved hydrocarbon conversion process which comprises contacting a hydrocarbon feedstock with a solid comprising a reducible oxide of Mn and which is characterized by the production of hydrocarbon product, coproduct water, and a reduced oxide of Mn. The improvement comprises conducting the contacting with a mixed oxide composition containing Mn, Na, B and Mg and the mixed oxide composition is characterized by the presence of the crystalline compound NaB/sub 2/Mg/sub 4/Mn/sub 2/O/sub chi/.
- Assignee:
- Atlantic Richfield Co., Los Angeles, CA
- Patent Number(s):
- US 4861936
- Application Number:
- PPN: US 7-212357A
- OSTI ID:
- 5335739
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ALKALI METALS
ALKALINE EARTH METAL COMPOUNDS
BORON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
DEHYDROGENATION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
LITHIUM
MANGANESE COMPOUNDS
METALS
NATURAL GAS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
TRANSITION ELEMENT COMPOUNDS