Title:
DESALINATION SYSTEM FOR GLYCOL LEAN LIQUID CONTAINING HIGH-SOLUBILITY SALT IN DEEP-SEA NATURAL GAS EXTRACTION, AND DESALINATION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2022/062315
Kind Code:
A1
Abstract:
Provided is a desalination system for a glycol lean liquid containing a high-solubility salt in deep-sea natural gas extraction, and a desalination method thereof, the desalination system comprising a MEG lean-liquid recovery apparatus, a salt-containing glycol lean-liquid flash distillation apparatus, and a first-order salt recovery apparatus; the salt-containing glycol lean-liquid flash distillation apparatus comprises a salt-containing glycol lean-liquid tank (1), a first transport pump (2), a negative-pressure flash distillation tank (3), a second transport pump (4), and a circulation heater (5); the MEG lean-liquid recovery apparatus comprises a negative-pressure condenser (6), a MEG lean-liquid receiving tank (7), a vacuum pump (8), a third transport pump (9), and a qualified MEG lean-liquid storage tank (10); the first-order salt recovery apparatus comprises a water tank (11), a fourth transport pump (12), a salt liquid tank (13), a fifth transport pump (14), a centrifuge (15), and a salt tank (16).
Inventors:
TANG WENXIAN (CN)
HE JIAWEI (CN)
QI JIYANG (CN)
XUE SHAOFENG (CN)
LIU BO (CN)
WANG FENG (CN)
XIAO ZUNKUN (CN)
LI HUA (CN)
ZHANG JIAN (CN)
CHEN CHEN (CN)
WANG WENTAO (CN)
HE JIAWEI (CN)
QI JIYANG (CN)
XUE SHAOFENG (CN)
LIU BO (CN)
WANG FENG (CN)
XIAO ZUNKUN (CN)
LI HUA (CN)
ZHANG JIAN (CN)
CHEN CHEN (CN)
WANG WENTAO (CN)
Application Number:
PCT/CN2021/078290
Publication Date:
March 31, 2022
Filing Date:
February 27, 2021
Export Citation:
Assignee:
UNIV JIANGSU SCIENCE & TECH (CN)
International Classes:
B01D3/42; B01D3/06; C01D3/04; C07C29/80; C07C31/20
Foreign References:
| CN112121452A | 2020-12-25 | |||
| CN112274958A | 2021-01-29 | |||
| CN104707352A | 2015-06-17 | |||
| CN202844614U | 2013-04-03 | |||
| CN108794302A | 2018-11-13 | |||
| CN104829031A | 2015-08-12 | |||
| US20050072663A1 | 2005-04-07 |
Other References:
LIU FEILONG;NI HAO;ZENG SHUBING;JIANG ZHENHUI: "Application of MEG Regeneration and Reclamation Technology on Offshore Platform", CHEMICAL ENGINEERING OF OIL & GAS, vol. 43, no. 2, 30 April 2014 (2014-04-30), pages 113 - 116, XP055916687, ISSN: 1007-3426, DOI: 10.3969/j.issn.1007-3426.2014.02.001
Attorney, Agent or Firm:
NANJING TIANHUA PATENT AGENT CO., LTD. (CN)
Download PDF: