微液滴强化传质的天然气甘醇脱水技术进展  

Progress in Natural Gas Glycol Dehydration Technology with Enhanced Mass Transfer by Microdroplets

作　　者：孔令真 陈家庆[1,2] 孙欢 徐孝轩 王强强[1,2] 丁国栋[1,2] 杨寒月 Kong Lingzhen;Chen Jiaqing;Sun Huan;Xu Xiaoxuan;Wang Qiangqiang;Ding Guodong;Yang Hanyue(School of Mechanical Engineering,Beijing Institute of Petrochemical Technology;Beijing Key Laboratory for Critical Technology and Equipment of Deep-Water Oil&Gas Pipeline;Sinopec Petroleum Exploration and Production Research Institute)

机构地区：[1]北京石油化工学院机械工程学院 [2]深水油气管线关键技术与装备北京市重点实验室 [3]中国石化石油勘探开发研究院

出　　处：《石油机械》2022年第10期102-110,共9页China Petroleum Machinery

基　　金：国家自然科学基金青年基金项目“基于微液滴分散强化吸收传质的天然气脱水机理与特性研究”(21808015);2020年度北京市教育委员会-北京市自然科学基金委员会联合资助项目暨北京市教育委员会科技计划重点项目“多级协同管式高通量微细气泡发生器的成泡机理与特性研究”(KZ202010017026)。

摘　　要：甘醇法脱水是天然气集输处理领域常用的露点控制方法,海洋和陆上边远区块气田目前都迫切需要高效紧凑的甘醇脱水吸收技术以降本增效。将三甘醇雾化成微小液滴,同时提高气液两相流动的湍流程度,进而强化气液传质过程,是实现天然气三甘醇脱水吸收设备高效化和紧凑化的有效途径。基于上述过程强化理念,国内外研究人员先后开发了旋流管式接触吸收塔板、超重力旋转填料床、管式气液并流雾化混合接触吸收器等高效气液吸收传质设备,并成功应用于天然气甘醇脱水处理。在系统介绍典型高效天然气脱水设备结构和工作原理的基础上,阐述了相应开展的室内和现场试验研究,并对各自的性能和适用场合进行总结。总的来看,由于管式天然气脱水技术在质量、体积和安装布置方面具有显著优点,能够较好地满足海洋和陆上边远区块气田开发的现实需求,应该给予高度关注并加强自主设计研发,以助力我国天然气产业蓬勃发展。Glycol dehydration is a dew point control method commonly used in the field of natural gas gathering and transportation processing,and efficient and compact glycol dehydration absorption technology is urgently needed in offshore and onshore remote gas fields to reduce cost and increase efficiency.It is an effective way to achieve high efficiency and compactness of natural gas triethylene glycol dehydration and absorption equipment to atomize triethylene glycol into tiny droplets,improve the turbulence degree of gas-liquid two-phase flow simultaneously,and then further strengthen the gas-liquid mass transfer process.Based on the above process intensification concept,researchers in China and abroad have successively developed high-efficiency gas-liquid absorption and mass transfer equipment such as swirl tube contact absorption column tray,high gravity rotating packed bed and tubular gas-liquid cocurrent atomization mixed contact absorber,which have been successfully applied in the glycol dehydration processing of natural gas.In this paper,on the basis of systematically introducing the structure and working principle of typical high-efficiency natural gas dehydration equipment,the corresponding laboratory and field test research was expounded,and the respective performance and applicable occasions were summed up.Overall,the tubular natural gas dehydration technology has obvious advantages in mass,volume and installation layout,and can better meet the practical needs of gas field development in offshore and onshore remote blocks,high attention should be paid to it;meanwhile,independent design,research and development should be strengthened to promote the vigorous development of natural gas industry in China.

关 键 词：天然气脱水 三甘醇 气液传质吸收 过程强化 雾化混合 微液滴 

分 类 号：TE868[石油与天然气工程—油气储运工程]