US 12,257,563 B2
Aldol condensation reaction apparatus
Shinbeom Lee, Daejeon (KR); Hyojin Jeon, Daejeon (KR); Gyeongseon Jeong, Daejeon (KR); Keedo Han, Daejeon (KR); and Junhee Han, Daejeon (KR)
Assigned to HANWHA SOLUTIONS CORPORATION, Seoul (KR)
Appl. No. 17/767,429
Filed by HANWHA SOLUTIONS CORPORATION, Seoul (KR)
PCT Filed Aug. 5, 2020, PCT No. PCT/KR2020/010299
§ 371(c)(1), (2) Date Apr. 7, 2022,
PCT Pub. No. WO2021/071073, PCT Pub. Date Apr. 15, 2021.
Claims priority of application No. 10-2019-0124798 (KR), filed on Oct. 8, 2019.
Prior Publication US 2024/0091737 A1, Mar. 21, 2024
Int. Cl. B01J 19/24 (2006.01); B01D 17/02 (2006.01); B01J 19/00 (2006.01); B01J 23/04 (2006.01); B01J 35/27 (2024.01); C07C 45/45 (2006.01); C07C 45/80 (2006.01)
CPC B01J 19/248 (2013.01) [B01D 17/02 (2013.01); B01J 19/0013 (2013.01); B01J 19/0066 (2013.01); B01J 23/04 (2013.01); B01J 35/27 (2024.01); C07C 45/45 (2013.01); C07C 45/80 (2013.01); B01J 2219/00033 (2013.01); B01J 2219/00063 (2013.01); B01J 2219/00103 (2013.01); B01J 2219/00166 (2013.01)] 7 Claims
OG exemplary drawing
 
1. An apparatus for an aldol condensation reaction which produces 2-ethylhexenal from n-butyraldehyde by an aldol condensation reaction, the apparatus comprising:
a continuous stirred tank reactor 10 into which n-butyraldehyde and a catalyst flow,
a plug flow reactor 20 into which n-butyraldehyde, the catalyst, and a product flow from the continuous stirred tank reactor 10,
an oil-water separator 30 into which the product and the catalyst flow from the plug flow reactor 20 and which separates the catalyst with an aqueous layer and separates the product with an organic layer, and
a heat exchanger 40 for transferring heat of the separated product to n-butyraldehyde flowing into the continuous stirred tank reactor 10,
wherein the catalyst separated as the aqueous layer in the oil-water separator 30 directly flows into the continuous stirred tank reactor 10 and is circulated.