气田采出水吸附提锂的预处理过程研究
Study on the pretreatment process of lithium adsorption from gas field produced water
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- 引用格式:
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肖芳,杨颖,邱俊,张永红,汪大兴,瞿冯斌,彭杰.气田采出水吸附提锂的预处理过程研究[J].天然气与石油,2025,43(3):126-131.doi:10-3969/j.issn.1006-5539.2025.03.017
XIAO Fang, YANG Ying, QIU Jun, ZHANG Yonghong, WANG Daxing, QU Fengbin, PENG Jie.Study on the pretreatment process of lithium adsorption from gas field produced water[J].Natural Gas and Oil,2025,43(3):126-131.doi:10-3969/j.issn.1006-5539.2025.03.017
- DOI:
- 10-3969/j.issn.1006-5539.2025.03.017
- 作者:
- 肖芳1 杨颖2 邱俊3 张永红1 汪大兴1 瞿冯斌1 彭杰1
XIAO Fang1, YANG Ying2, QIU Jun3, ZHANG Yonghong1, WANG Daxing1, QU Fengbin1, PENG Jie1
- 作者单位:
- 1. 中国石油工程建设有限公司西南分公司, 四川 成都 610041; 2. 华东理工大学国家盐湖资源综合利用工程技术研究中心, 上海 200237; 3. 苏州聚智同创环保科技有限公司, 江苏 苏州 215500
1. CPECC Southwest Company, Chengdu, Sichuan, 610041, China; 2. National Engineering Research Center for Integrated Utilization of Salt Lake Resources, East China University of Science and Technology, Shanghai, 200237, China; 3. Suzhou Synovo Green Tech. Co., Ltd., Suzhou, Jiangsu, 215500, China
- 关键词:
- 锂资源;吸附法;气田采出水;预处理
Lithium resources; Adsorption method; Gas field produced water; Pretreatment
- 摘要:
气田采出水作为天然气开采过程中的伴生废水,含有一定低浓度的锂,锂资源总量可观。某气藏气田采出水属于高钠低锂体系,具有高硬、高硫、高有机物特征,锂总量丰富但回收难度大,有必要对气田采出水的吸附提锂工艺进行预处理过程研究。考察气提法脱硫工艺、电催化氧化工艺及臭氧催化氧化工艺对气田采出水中还原性污染物影响,并对预处理工艺参数进行优化,通过脱硫预处理、催化氧化工艺,可将Li+吸附容量从12.27 mg/g提升至 30.02 mg/g。研究成果证实了气田采出水须通过合理预处理,才能实现锂的有效提取,为后续研究及工程应用提供了理论基础。
Gas field produced water, as the associated wastewater of natural gas extraction process, contains a certain low concentration of lithium. The total amount of lithium resources is considerable. The produced water from a certain gas reservoir belongs to a high-sodium, low-lithium system, and exhibits high hardness, high sulfur content and high organic matter characteristics, making lithium recovery difficult despite its high total abundance. This paper studies the pretreatment process of lithium extraction from gas field produced water by adsorption. The effects of gas stripping desulfurization process, electrocatalytic oxidation process, and ozone catalytic oxidation process on reductive pollutants in the produced water were investigated and pretreatment process parameters were optimized. Through desulfurization pretreatment and catalytic oxidation process, the adsorption capacity of Li+ was significantly increased from 12.27 mg/g to 30.02 mg/g. The research results confirm that gas field produced water must undergo proper pretreatment to achieve effective lithium extraction, providing a theoretical basis for subsequent research and engineering applications.
