US 12,251,652 B2
Stripping device and stripping method
Seong Hun Kim, Daejeon (KR); Chang Hoe Heo, Daejeon (KR); Sung Keun Jang, Daejeon (KR); and Eun Jung Joo, Daejeon (KR)
Assigned to LG Chem, Ltd., Seoul (KR)
Appl. No. 17/771,165
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Aug. 20, 2021, PCT No. PCT/KR2021/011076
§ 371(c)(1), (2) Date Apr. 22, 2022,
PCT Pub. No. WO2022/075581, PCT Pub. Date Apr. 14, 2022.
Claims priority of application No. 10-2020-0128021 (KR), filed on Oct. 5, 2020.
Prior Publication US 2022/0370930 A1, Nov. 24, 2022
Int. Cl. B01D 3/14 (2006.01); B01D 3/32 (2006.01); B01D 3/34 (2006.01); B01D 3/38 (2006.01); C08F 6/00 (2006.01); C08F 6/04 (2006.01); C08F 6/24 (2006.01)
CPC B01D 3/143 (2013.01) [B01D 3/32 (2013.01); B01D 3/343 (2013.01); B01D 3/38 (2013.01); C08F 6/001 (2013.01); C08F 6/04 (2013.01); C08F 6/24 (2013.01); B01D 3/14 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A steam stripping device comprising:
a distillation column of which at least a part or an entirety of a lower portion is perforated;
a stripping vessel integrally connected to the lower portion of the distillation column;
one or more spray nozzles provided at an upper portion of the stripping vessel and configured to spray water;
a steam inlet provided at a lower portion of the stripping vessel; and
a feed stream inlet at a side surface of the stripping vessel,
wherein the feed stream inlet feeds a feed stream including a polymer, an unreacted monomer, and water to the stripping vessel, and
wherein water is sprayed through the one or more spray nozzles onto bubbles formed in the stripping vessel.