天然气与石油2026，Vol.44Issue(1)：33-39,7.DOI:10.3969/j.issn.1006-5539.2026.01.004
天然气脱汞工艺及优选
Natural gas mercury removal process and selection
张波 1张维智 2杨建宏 1李志岩 2孙凤枝 1蒋余巍 1韩中喜 3李剑3
作者信息
- 1. 中国石油天然气集团有限公司超深层复杂油气藏勘探开发技术研发中心,新疆 库尔勒 841000||新疆维吾尔自治区超深层复杂油气藏勘探开发工程研究中心,新疆 库尔勒 841000||新疆超深油气重点实验室,新疆 库尔勒 841000||中国石油塔里木油田分公司,新疆 库尔勒 841000
- 2. 中国石油油气和新能源分公司,北京 100007
- 3. 中国石油勘探开发研究院,北京 100083
- 折叠
摘要
Abstract
There are various processes for mercury removal from natural gas.Mastering the characteristics of different mercury removal processes is of great significance for process selection and achieving low-cost and efficient mercury removal from natural gas.Based on the analysis of the characteristics of different natural gas mercury removal processes,this study provides recommendations for process selection under different mercury concentration control targets.The low-temperature separation mercury removal process has a strong capability to remove mercury from natural gas,but the removal efficiency is limited.Additionally,mercury removal is required for ethylene glycol regenerated gas and alcohol-hydrocarbon liquid flash gas.Moreover,a large amount of liquid mercury precipitates in the low-temperature process,polluting equipment and causing maintenance difficulties.Study results show that when the mercury concentration control target is 28 μg/m3,non-regenerable wet gas mercury removal processes can be used for natural gas with low-high and mid-high mercury content to eliminate mercury contamination as close to the front as possible in the processing plant.For natural gas with ultra-high mercury content,to reduce the consumption of non-regenerable mercury removal agents,a combination of low-temperature separation and non-regenerable mercury removal processes or regenerable mercury removal processes can be used.When the mercury concentration control target is 0.01 μg/m3,it is recommended to use dry gas chemical mercury removal process to avoid the adverse effects of liquid water and hydrocarbons on the performance of mercury adsorbent.Due to the limited experience in natural gas mercury removal both domestically and internationally,this study provides valuable guidance for the design of natural gas mercury removal projects.关键词
天然气/脱汞/工艺/优选Key words
Natural gas/Mercury removal/Process/Selection引用本文复制引用
张波,张维智,杨建宏,李志岩,孙凤枝,蒋余巍,韩中喜,李剑..天然气脱汞工艺及优选[J].天然气与石油,2026,44(1):33-39,7.
