US 12,454,499 B2
Fluidization enhancers for the oxidative dehydrogenation of hydrocarbons
Elena Y. Chung, Somerville, MA (US); John A. Sofranko, Woburn, MA (US); William K. Wang, Woburn, MA (US); Soumen Kundu, Pearland, TX (US); Hangyao Wang, Freeport, TX (US); Barry B. Fish, Freeport, TX (US); and Matthew T. Pretz, Freeport, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US); and EcoCatalytic Inc., Woburn, MA (US)
Appl. No. 17/800,756
Filed by Dow Global Technologies LLC, Midland, MI (US); and EcoCatalytic Inc., Woburn, MA (US)
PCT Filed Feb. 19, 2021, PCT No. PCT/US2021/018649
§ 371(c)(1), (2) Date Aug. 18, 2022,
PCT Pub. No. WO2021/168165, PCT Pub. Date Aug. 26, 2021.
Claims priority of provisional application 62/979,051, filed on Feb. 20, 2020.
Prior Publication US 2023/0089190 A1, Mar. 23, 2023
Int. Cl. C07C 5/48 (2006.01); C10G 27/04 (2006.01)
CPC C07C 5/48 (2013.01) [C10G 27/04 (2013.01); C07C 2521/02 (2013.01); C07C 2523/08 (2013.01); C07C 2523/14 (2013.01); C07C 2523/34 (2013.01); C10G 2400/20 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A process for dehydrogenation of a hydrocarbon to produce an olefin and water, the process comprising:
contacting, in a fluidized bed, the hydrocarbon with a particulate material consisting of:
an oxygen transfer agent; and
a fluidization enhancing additive consisting of inorganic materials;
wherein:
during at least a portion of the time of the contacting of the hydrocarbon with the particulate material, the fluidized bed is at a temperature at or above a melting point of one or more materials of the oxygen transfer agent;
during at least a portion of the time of the contacting of the hydrocarbon with the particulate material, a surface of at least a portion of the oxygen transfer agent is exposed to a temperature near or greater than the melting point of the material of the oxygen transfer agent such that at least a portion of the oxygen transfer agent comprises a molten layer;
the fluidization enhancing additive does not undergo reduction in the fluidized bed during the contacting of the hydrocarbon with the particulate material at the temperature;
the fluidization enhancing additive is present in an amount that maintains sufficient fluidization of the particulate material; and
the oxygen transfer agent and the fluidization enhancing additive are separate particles in the particulate material.