摘要：Gas-liquid coalescing elements are widely used in industrial fields such as compressed gas purification. Currently, the performance of coalescing elements is difficult to meet the growing needs of the industry. However, while increasing the filtration efficiency of the coalescing element, the resistance will increase simultaneously, which is not conducive to the optimization of the comprehensive performance. To develop low-resistance high-efficiency coalescing elements, the coalescing filter materials are modified by different concentrations of fluorosilicone acrylate solution. The evolution of pressure drop, filtration efficiency and secondary entrainment of the filter materials with different surface energy during the gas-liquid filtration process were analyzed, the modified filter materials were fabricated into coalescing filters for verification. The results showed that, the filtration efficiency of the modified filter materials was increased by approximately 10%, and the steady-state pressure drop was reduced by approximately 30%. The decrease in jump pressure drop caused by changes in the surface properties of the filter materials is the main cause of the decrease in steady-state pressure drop. The increase in filtration efficiency is caused by the enhancement of diffusion and inertial separation, and the reduction of secondary entrainment. For oleophobic filter materials with different surface energy, the pressure drop and filtration efficiency increase with the decrease of surface energy. The quality factor of the coalescing filter element can be increased by up to 92% after modification.
© 2020, Editorial Board of CIESC Journal. All right reserved.

ISSN号：0438-1157

卷、期、页：v 71,n 12,p5644-5654

发表日期：2020-12-01

期刊分区（SCI为中科院分区）：无

收录情况：EI（工程索引）

发表期刊名称：Huagong Xuebao/CIESC Journal

通讯作者：刘宇峰

第一作者：姬忠礼,陈锋,刘震,常程

论文类型：期刊论文

论文概要：刘宇峰,姬忠礼,陈锋,刘震,常程，Influence of oleophobic modification on gas-liquid filtration performance of glass fiber coalescing elements，Huagong Xuebao/CIESC Journal，2020，v 71,n 12,p5644-5654

论文题目：Influence of oleophobic modification on gas-liquid filtration performance of glass fiber coalescing elements