Cyclone-coalescence separation technology for enhanced droplet removal in natural gas purification process  

作　　者：Jianan Fan Xianggang Zhang Xia Jiang Zhenghao Yang Lingling Xie Liwang Wang Liang Ma Hualin Wang Yulong Chang 

机构地区：[1]College of Architecture&Environment,Sichuan University,Chengdu 610065,China [2]College of Carbon Neutrality Future Technology,Sichuan University,Chengdu 610065,China [3]Tianfu Yongxing Laboratory,Chengdu 610213,China [4]National-Engineering Laboratory for Industrial Wastewater Treatment,East China University of Science and Technology,Shanghai 200237,China

出　　处：《Chinese Journal of Chemical Engineering》2024年第11期191-203,共13页中国化学工程学报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Youth Fund)(52300136).

摘　　要：Natural gas is increasingly recognized as a clean energy source due to its high quality,low pollution levels,and abundant availability.However,certain gas fields contain complex components that require purification for efficient transportation and utilization.Addressing these issues involves efficient gas eliquid separation technology.Existing gaseliquid separation units face challenges such as efficiency,liquid entrainment,energy consumption,and the need for consumable replacement.This study focuses on a novel cyclone-coalescence separator that combines centrifugal and coalescence principles.Implemented in a high-acid natural gas purification plant in China,the cyclone-coalescence separator demonstrated efficiency primarily influenced by gas velocity and diameter.Optimal performance was observed with a 75 mm diameter reactor at velocities of 8-12 m·s^(-1),achieving a peak efficiency of 96%.The hydrophilic glass fiber with a monofilament structure can coalesce droplets effectively.In practical industrial use,under operational conditions,the hydrocyclone's liquid discharge rate is 89.6 kg·h^(-1)with an inlet concentration of 382.7 g·m^(3).Over a 400-h cycle,the cyclone-coalescence separator demonstrated superior separation performance with an average liquid discharge volume of 9.09 mg·kg^(-1),compared to 4.93 mg·kg^(-1)for the precision filter.This successful industrial implementation presents a promising approach to natural gas purification.

关 键 词：Gaseliquid separation Cyclone coalescing separator Natural gas purification Industrial application 

分 类 号：TE644[石油与天然气工程—油气加工工程]