(19)
(11) EP 4 527 488 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
published in accordance with Art. 153(4) EPC

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
30.04.2025 Bulletin 2025/18

(43) Date of publication:
26.03.2025 Bulletin 2025/13

(21) Application number: 23757502.2

(22) Date of filing: 14.04.2023
(51) International Patent Classification (IPC): 
B01D 53/62(2006.01)
 B01D 53/78(2006.01)
(52) Cooperative Patent Classification (CPC):
B01D 53/1406; B01D 53/1475; B01D 53/1481; B01D 53/1493; B01D 53/507; B01D 53/62; B01D 53/75; B01D 53/78; B01D 2251/2062; B01D 2257/302; B01D 2257/504; B01D 2259/652; Y02P 60/20
(86) International application number:
PCT/CN2023/088402
(87) International publication number:
WO 2023/221704 (23.11.2023 Gazette 2023/47)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 16.05.2022 CN 202210531132

(71) Applicant: Jiangnan Environmental Technology Inc
Ridgefield Park, NJ 07660 (US)

(72) Inventors:
  • LUO, Jing
    Jiangsu 211100 (CN)
  • ZHANG, Jun
    Jiangsu 211100 (CN)
  • WANG, Jinyong
    Jiangsu 211100 (CN)
  • QI, Lifang
    Jiangsu 211100 (CN)

(74) Representative: Bottero, Carlo et al
Barzanò & Zanardo S.p.A. Via Borgonuovo, 10
20121 Milano
20121 Milano (IT)

   


(54) AMMONIA DECARBONIZATION COOLING APPARATUS AND METHOD


(57) Ammonia-based decarbonization cooling apparatus and a method therefor. The cooling apparatus may include: a first-stage cooling function zone which may use a first circulating liquid to cool a process gas to a temperature of Tgas 1, a second-stage cooling function zone which may use a second circulating liquid to cool the process gas to a temperature of Tgas 2, and a third-stage cooling function zone which may use a third circulating liquid to cool the process gas to a temperature of Tgas 3, wherein Tgas 3 <Tgas 2 <Tgas 1 <Tgas 0, and Tgas 0 is an initial temperature of the process gas when entering the first-stage cooling function zone; a first cold source for cooling the first circulating liquid, a second cold source for cooling the second circulating liquid, and a third cold source for cooling the third circulating liquid, wherein the three cold sources may be different. The apparatus and method of the present invention use circulating water or a closed cooling tower or an air cooler, cold process gas, chilled liquid or a chiller for staged cooling, respectively, to make full use of low-energy cold and recycling of process gas cold, thus saving investment costs and reducing energy consumption.