Title:
METHOD FOR DEEP REMOVAL OF BIVALENT AND TRIVALENT SCALING IONS FROM HEAVY OIL PRODUCED WATER
Document Type and Number:
WIPO Patent Application WO/2022/257843
Kind Code:
A1
Abstract:
The present invention provides a method for deep removal of divalent and trivalent scaling ions from heavy oil produced water. The method comprises performing divalent and trivalent scaling ion deep removal treatment on heavy oil produced water by using a macroporous weak acid resin, to reduce divalent and trivalent scaling ions in the heavy oil produced water to 50 μg/L. The water quality of produced water treated using the method is superior to the boiler water standard, a silicon removal process in a conventional heavy oil produced water treatment process can be cancelled, and significant economic benefits are achieved.
Inventors:
XIE JIACAI (CN)
TONG KUN (CN)
SHAO ZHIGUO (CN)
WANG ZIXIAN (CN)
NIE FAN (CN)
TONG KUN (CN)
SHAO ZHIGUO (CN)
WANG ZIXIAN (CN)
NIE FAN (CN)
Application Number:
PCT/CN2022/096754
Publication Date:
December 15, 2022
Filing Date:
June 02, 2022
Export Citation:
Assignee:
CHINA NAT PETROLEUM CORP (CN)
CNPC RESEARCH INSTITUTE OF SAFETY & ENVIRONMENT TECH CO LTD (CN)
CNPC RESEARCH INSTITUTE OF SAFETY & ENVIRONMENT TECH CO LTD (CN)
International Classes:
C02F1/28; B01J20/26; B01J20/30; B01J20/34; B01J39/20; C02F1/42; C08F2/20; C08F220/06; C02F101/30
Foreign References:
| CN105884967A | 2016-08-24 | |||
| CN102815765A | 2012-12-12 | |||
| CN107814862A | 2018-03-20 | |||
| US6569910B1 | 2003-05-27 |
Other References:
LEI LECHENG, CHEN LIN : "The Softening Treatment of Heavy Crude Oil Wastewater for Steam Boilers", LIZI JIAOHUAN YU XIFU - ION EXCHANGE AND ADSORPTION, NANKAI DAXUE, GAOFENZI HUAXUE YANJIUSUO, TIANJIN, CN, vol. 18, no. 4, 28 August 2002 (2002-08-28), CN , pages 355 - 360, XP093013901, ISSN: 1001-5493, DOI: 10.16026/j.cnki.iea.2002.04.010
XIA YU: "Further Modificatin of Macroporous Weakly Acidic Cation Exchange Resins", LIAONING CHEMICAL INDUSTRY, LIAONING HUAGONG, CN, vol. 29, no. 5, 20 September 2000 (2000-09-20), CN , pages 268 - 270, XP093013904, ISSN: 1004-0935
XIA YU: "Further Modificatin of Macroporous Weakly Acidic Cation Exchange Resins", LIAONING CHEMICAL INDUSTRY, LIAONING HUAGONG, CN, vol. 29, no. 5, 20 September 2000 (2000-09-20), CN , pages 268 - 270, XP093013904, ISSN: 1004-0935
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
Download PDF: