天然气与石油2023，Vol.41Issue(6)：67-72,6.DOI:10.3969/j.issn.1006-5539.2023.06.010
油气田采出水提锂技术研究
Research on technology for lithium extraction from oil and gas field produced water
摘要
Abstract
In order to reduce the wastage of lithium element in produced water reinjection of oil and gas field,the relevant technologies of extracting lithium from produced water of oil and gas field is explored.The project team carried out relevant research on lithium extraction technologies for complex water quality containing sulfur,oil and suspended solids in an oil and gas field in Southwest China.The pretreatment process consists of air floatation,air extraction desulfurization,catalytic oxidation,flocculation and sedimentation,and ends with two-stage filtration.The process of lithium extraction by adsorption,membrane separation and concentration,and lithium precipitation was selected,leading to a pilot plant for lithium extraction from produced water in oil and gas field.This quasi-industrial pilot plant is the first one in China for extracting lithium from produced water of oil and gas field.And after performance evaluation,the overall recovery of lithium ion is more than 70%,and the purity of lithium carbonate product is more than 99.2%.All performance indicators meet the requirements of lithium carbonate industrial products.The successful trial operation of this pilot plant can be used for reference for the development of industrial scale lithium extraction facilities from produced water in oil and gas field.关键词
油气田采出水/提锂/中试装置/试运行Key words
Produced water of oil and gas field/Extraction of lithium/Pilot plant/Trial operation引用本文复制引用
汤国军,张宏军,何化,李宇,程林,肖芳,肖秋涛..油气田采出水提锂技术研究[J].天然气与石油,2023,41(6):67-72,6.基金项目
中国石油工程建设有限公司科研课题"气田采出水中溴、锂等有价元素资源化关键技术及装备研究"(KY2022-06) （KY2022-06）
