US 12,344,577 B2
Methods for dehydrogenating hydrocarbons
Kevin Blann, Lake Jackson, TX (US); Alexey Kirilin, Hoek (NL); Andrzej Malek, Midland, MI (US); Victor Sussman, Midland, MI (US); Matthew T. Pretz, Freeport, TX (US); Brien A. Stears, League City, TX (US); Barry B. Fish, Lake Jackson, TX (US); Eric E. Stangland, Midland, MI (US); Brian W. Goodfellow, Sugarland, TX (US); and Manish Sharma, Missouri City, TX (US)
Assigned to Dow Global Technologies LLC, Midland, MI (US)
Filed by Dow Global Technologies LLC, Midland, MI (US)
Filed on Apr. 26, 2023, as Appl. No. 18/307,619.
Application 18/307,619 is a continuation of application No. 17/271,139, granted, now 11,724,974, previously published as PCT/US2019/048391, filed on Aug. 27, 2019.
Claims priority of provisional application 62/814,045, filed on Mar. 5, 2019.
Claims priority of provisional application 62/725,497, filed on Aug. 31, 2018.
Prior Publication US 2023/0257327 A1, Aug. 17, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. C07C 5/48 (2006.01); B01J 21/04 (2006.01); B01J 21/06 (2006.01); B01J 21/10 (2006.01); B01J 23/08 (2006.01); B01J 23/26 (2006.01); B01J 23/42 (2006.01); C07C 5/333 (2006.01)
CPC C07C 5/48 (2013.01) [B01J 21/04 (2013.01); B01J 21/06 (2013.01); B01J 21/10 (2013.01); B01J 23/08 (2013.01); B01J 23/26 (2013.01); B01J 23/42 (2013.01); C07C 2521/04 (2013.01); C07C 2521/06 (2013.01); C07C 2521/10 (2013.01); C07C 2523/08 (2013.01); C07C 2523/26 (2013.01); C07C 2523/42 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method for dehydrogenating hydrocarbons comprising:
passing a hydrocarbon feed comprising one or more alkanes or alkyl aromatics into a fluidized bed reactor, wherein at least 95 wt. % of the hydrocarbon feed has an atmospheric boiling point of less than or equal to 300° C.;
contacting the hydrocarbon feed with a dehydrogenation catalyst in the fluidized bed reactor to produce a dehydrogenated product and hydrogen, wherein the hydrogen is hydrogen gas (H2);
contacting the hydrogen with an oxygen-rich oxygen carrier material in the fluidized bed reactor to combust the hydrogen and form an oxygen-diminished oxygen carrier material, wherein the oxygen-rich oxygen carrier material is reducible, wherein the oxygen carrier material exhibits Geldart A properties or Geldart B properties, and wherein the dehydrogenation catalyst and the oxygen-rich oxygen carrier material are separate particles;
passing the oxygen-diminished oxygen carrier material and the dehydrogenation catalyst to a regeneration unit;
oxidizing the oxygen-diminished oxygen carrier material in the regeneration unit to form the oxygen-rich oxygen carrier material; and
passing the oxygen-rich oxygen carrier material to the fluidized bed reactor.