文献类型：期刊文献

中文题名：气田采出水吸附提锂的预处理过程研究

英文题名：Study on the pretreatment process of lithium adsorption fromgas field produced water

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]

机构：[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

年份：2025

卷号：43

期号：3

起止页码：126

中文期刊名：天然气与石油

外文期刊名：Natural Gas and Oil

基金：中国石油工程建设有限公司科研项目“气田采出水有价元素综合利用关键技术研究”(CPECC2024KJ03-1)。

语种：中文

中文关键词：锂资源;吸附法;气田采出水;预处理

外文关键词：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.