US 12,240,806 B2
Mitigating naturally occurring radioactive material in oxidative dehydrogenation
Vasily Simanzhenkov, Calgary (CA); Bolaji Olayiwola, Calgary (CA); and Shahin Goodarznia, Calgary (CA)
Assigned to NOVA Chemicals (International) S.A., Fribourg (CH)
Appl. No. 18/009,398
Filed by NOVA CHEMICALS (INTERNATIONAL) S.A., Fribourg (CH)
PCT Filed Jun. 8, 2021, PCT No. PCT/IB2021/055038
§ 371(c)(1), (2) Date Dec. 9, 2022,
PCT Pub. No. WO2021/250568, PCT Pub. Date Dec. 16, 2021.
Claims priority of provisional application 63/037,760, filed on Jun. 11, 2020.
Prior Publication US 2023/0257326 A1, Aug. 17, 2023
Int. Cl. C07C 5/48 (2006.01); B01D 53/02 (2006.01); B01D 53/14 (2006.01); B01J 19/24 (2006.01); C07C 7/11 (2006.01); C07C 7/12 (2006.01)
CPC C07C 5/48 (2013.01) [B01D 53/02 (2013.01); B01D 53/1437 (2013.01); B01J 19/245 (2013.01); C07C 7/11 (2013.01); C07C 7/12 (2013.01); B01D 2252/103 (2013.01); B01D 2252/205 (2013.01); B01D 2253/102 (2013.01); B01D 2253/108 (2013.01); B01D 2253/1122 (2013.01); B01D 2253/25 (2013.01); B01D 2257/93 (2013.01); B01J 2219/0004 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
an oxidative dehydrogenation reactor configured to: i) receive a feed stream comprising oxygen, a hydrocarbon, and a naturally occurring radioactive material (NORM); and ii) react at least a portion of the hydrocarbon with the oxygen to form a dehydrogenated hydrocarbon and water, an outlet of the oxidative dehydrogenation reactor configured to provide an effluent stream comprising the dehydrogenated hydrocarbon, water, a remaining unreacted portion of the hydrocarbon, and the NORM;
a processing unit configured to: i) receive the effluent stream; and ii) process the effluent stream so that an outlet of the processing unit is configured to provide: i) a product stream comprising the dehydrogenated hydrocarbon; and ii) a recycle stream comprising the remaining unreacted portion of the hydrocarbon and the NORM; and
a NORM reduction unit configured to receive the recycle stream and reduce an amount of the NORM in the recycle stream so that an outlet of the NORM reduction unit is configured to provide a NORM-reduced recycle stream,
wherein the outlet of the NORM reduction unit is fluidically coupled with an inlet of the oxidative dehydrogenation reactor.