US 12,246,314 B2
Device and method for purifying organic amine solution
Jinyi Wang, Beijing (CN); Shiwang Gao, Beijing (CN); Lianbo Liu, Beijing (CN); Hongwei Niu, Beijing (CN); Dongfang Guo, Beijing (CN); and Shiqing Wang, Beijing (CN)
Assigned to HUANENG CLEAN ENERGY RESEARCH INSTITUTE, Beijing (CN)
Filed by HUANENG CLEAN ENERGY RESEARCH INSTITUTE, Beijing (CN)
Filed on Sep. 29, 2021, as Appl. No. 17/488,693.
Application 17/488,693 is a continuation of application No. PCT/CN2020/115961, filed on Sep. 17, 2020.
Prior Publication US 2022/0016616 A1, Jan. 20, 2022
Int. Cl. B01J 49/60 (2017.01); B01J 41/04 (2017.01); B01J 47/02 (2017.01); C07C 213/10 (2006.01)
CPC B01J 49/60 (2017.01) [B01J 41/04 (2013.01); B01J 47/02 (2013.01); C07C 213/10 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A device for purifying an organic amine solution, comprising an ion exchange bed (X1),
wherein the ion exchange bed (X1) has an upper feeding port, through which the ion exchange bed (X1) is communicated with an inert gas cylinder (C1), a fifth liquid storage tank (T5) and a second liquid adding pump (P2) by pipelines, a first flow meter (F1) is provided on an outlet pipeline of the inert gas cylinder (C1), and a seventh valve (V7) is provided on a discharging pipeline of the fifth liquid storage tank (T5);
wherein the ion exchange bed (X1) has a lower feeding port, through which the ion exchange bed (X1) is communicated with a first liquid adding pump (P1) by a pipeline, and the first liquid adding pump (P1) has an extraction port, through which the first liquid adding pump (P1) is communicated with a first liquid storage tank (T1) by a pipeline;
wherein the ion exchange bed (X1) has a lower discharging port, through which the ion exchange bed (X1) is communicated with a second liquid storage tank (T2), a third liquid storage tank (T3) and a fourth liquid storage tank (T4) by pipelines, a multiple total reflection infrared spectrum analyzer (D1) is provided on a discharging pipeline from a lower end of the ion exchange bed (X1), a third valve (V3) is provided on a feeding pipeline of the second liquid storage tank (T2), a fourth valve (V4) is provided on a feeding pipeline of the third liquid storage tank (T3), and a fifth valve (V5) is provided on a pipeline communicating the fourth liquid storage tank (T4) with the ion exchange bed (X1) through the lower discharging port; and
wherein the ion exchange bed (X1) has an upper discharging port, through which the ion exchange bed (X1) is communicated with the fourth liquid storage tank (T4) by a pipeline, and a second valve (V2) is provided on a pipeline communicating the fourth liquid storage tank (T4) with the ion exchange bed (X1) through the upper discharging port.