Gas-phase homogeneous oxidative dehydrogenation and coupling of organic molecules
AssigneeTrustees of Tufts College
InventorsPrashant Deshlahra, Leelavathi Annamalai
Life of this patent
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Abstract
Disclosed are gas-phase ODH and OCP processes for converting alkanes (e.g., C2H6 and C3H8) to alkenes (e.g., C2H4 and C3H6) or oxygenates (e.g., methanol, ethanol, isopropanol, or propylene oxide) or converting alkenes (e.g., ethylene and propene) and oxygenates (e.g., methanol, ethanol, isopropanol or propylene oxide) to longer carbon-chain alkenes or longer carbon-chain alkanes with or without solid catalysts.
Claims25
A gas-phase oxidative dehydrogenation (ODH) process for converting an alkane to propylene or propylene oxide, comprising:
- flowing a feed gas through a heated reaction zone within a reactor, wherein the feed gas comprises an alkane, an oxidizing agent, and a radical initiator,
- wherein:
- the heated reaction zone has a temperature of 363 to 1000 K;
- the heated reaction zone is a space or a combination of a space and an inert solid surface;
- and
- the radical initiator is nitric oxide or nitrogen dioxide.
A gas-phase coupling process for converting a hydrocarbon feedstock to an effluent stream, comprising:
- flowing a feed gas comprising a hydrocarbon feedstock, an oxidizing agent, and a radical initiator through a heated reaction zone within a reactor;
- wherein:
- the hydrocarbon feedstock comprises an oxygenate, and a C1-C6 alkane or a C2-C6 alkene;
- the effluent stream comprises a C7-C20 alkane or a C7-C20 alkene or both;
- the heated reaction zone has a temperature of 363 to 1000 K;
- the heated reaction zone is a space or a combination of a space and an inert solid surface, whereby the effluent stream is produced;
- and
- the radical initiator is nitric oxide or nitrogen dioxide.
A gas-phase coupling process for converting an alkene and an oxygenate to a longer carbon-chain alkene or a longer carbon-chain alkane, comprising:
- flowing a feed gas through a heated reaction zone within a reactor, wherein the feed gas comprises an alkene, an oxygenate, an oxidizing agent, and a radical initiator,
- wherein:
- the heated reaction zone has a temperature of 363 to 1000 K;
- the heated reaction zone is a space or a combination of a space and an inert solid surface;
- and
- the radical initiator is nitric oxide or nitrogen dioxide.
Dependencies are inferred from the claim text.