低温碳捕集用切流式旋流分离器数值模拟研究
Numerical Simulation Study on Tangential Flow Cyclone Separator for Low-temperature Carbon Capture
张娜 1秦锋 1明红芳 1张帆1
作者信息
摘要
为了探究双切流入口式旋流分离器在低温二氧化碳捕集应用下的分离性能,采用RNG k-ε湍流模型和DPM模型对DN 25 mm型双切流入口式旋流分离器内气液两相流场进行模拟分析.结果表明:当入口速度大于0.15 m/s时,对1μm以上液滴分离效率高于95%,总分离效率不低于94%;当入口速度大于0.2 m/s时,分离效率可达到98%以上.相关研究结果可为旋流分离器在低温二氧化碳捕集的实际工程应用提供理论依据.
Abstract
In order to investigate the separation performance of a dual tangential inlet cyclone separator in low-temperature carbon dioxide capture applications,RNG k-ε The turbulence model and DPM model were adopted to simulate and analyze the gas-liquid two-phase flow field in a DN 25 mm double tangential inlet cyclone separator.The results indicated that when the inlet velocity was greater than 0.15 m/s,for 1 μm The separation efficiency of droplets above was higher than 95%,and the total separation efficiency was not less than 94%.When the inlet speed was higher than 0.2 m/s,the separation efficiency could reach over 98%.The relevant research results could provide theoretical basis for the practical engineering application of cyclone separators in low-temperature carbon dioxide capture.
关键词
低温二氧化碳捕集/旋流分离器/数值模拟/分离效率Key words
Low temperature carbon dioxide capture/Cyclone separator/Numerical simulation/Separation efficiency引用本文复制引用
基金项目
中海石油气电集团有限责任公司科技项目(QDKY-2021-YFZX-08)
出版年
2024
NETL
NSTL
维普
万方数据