Process for generation of olefins
AssigneeExxonMobil Research and Engineering Company
InventorsBrian M. Weiss, ChangMin Chun, Dhaval A. Bhandari, Federico Barrai, Sophie Liu
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Abstract
This disclosure relates to processes, compositions, and systems useful for the oxydehydrogenation of alkanes to form olefins (e.g., for the conversion of ethane to ethylene). The processes use an oxygen transfer agent and may be carried out in any suitable reactor, including a reverse flow reactor, a circulating fluid bed reactor, or a cyclic co-flow reactor.
Claims28
A process for converting a C1 to C6 alkane to a C2 to C6 olefin, comprising:
- passing an oxygen-containing gas in a first direction through a reverse flow reactor (RFR);
- contacting the oxygen-containing gas with an oxygen transfer agent to heat the reactor;
- terminating the oxygen-containing gas flow;
- passing a C1 to C6 alkane stream through the reactor in a second direction and past said oxygen transfer agent;
- reacting oxygen from the oxygen transfer agent with the C1 to C6 alkane under conditions sufficient to form C2 to C6 olefin and steam;
- and
- withdrawing an effluent comprising the C2 to C6 olefin from the reactor.
A process for converting a C1 to C6 alkane to a C2 to C6 olefin, comprising:
- adding an oxygen-containing gas to a reactor;
- contacting the oxygen-containing gas with an oxygen transfer agent comprising tin and/or manganese, and at least one material selected from the group consisting of aluminum, cobalt, zirconium, yttrium, cerium, lanthanum, sodium, tungsten, and the oxides thereof to heat the reactor;
- terminating the oxygen-containing gas flow;
- adding a C1 to C6 alkane stream to the reactor;
- reacting the oxygen from the oxygen transfer agent with the C1 to C6 alkane under conditions sufficient to form C2 to C6 olefin and steam;
- and
- withdrawing an effluent comprising the C2 to C6 olefin from the reactor.
A process for converting a C1-C6 alkane to a C2 to C6 olefin to olefin using an oxygen transfer agent comprising tin and cobalt.
Dependencies are inferred from the claim text.