摘要：Two-stage filtration units including pre-filtration and coalescence filtration play an important role in the quality control of high-sulfur natural gas, because micron-sized particles can significantly influence the gas sweetening process. Filtration failure usually occurs in operation, because of the mismatch between the two types of filter cartridge in the filtration unit. To overcome this drawback, the performance of the coalescing filter cartridge must be improved and a matching pre-filter cartridge need to be designed. One approach for accomplishing this is to spray an atomizing adhesive onto the fibrous layers of the filter cartridge to enhance its integrated filtration performance. In this study, a pleated protective layer and a hydrophobic drainage layer were designed for the coalescing filter cartridge to prolong the operation cycle and quickly drain the captured liquid. Testing results showed that the new-type of coalescing filter cartridge exhibited 75% decrease in its steady pressure drop over that of the original filter and the filtration efficiency reached 99.99% for liquid droplets with diameter greater than 0.3 µm. The structure of pre-filter cartridge was also redesigned to match the performance of the new coalescing filter cartridge. As a result, the operational loading of the improved two-stage filter cartridges achieved the desired performance. Field testing of the new filter combination showed that the acid gas filtration unit produced a more reasonable pressure drop and a higher rate of captured liquid than with the conventional filter.
© 2017

ISSN号：1383-5866

卷、期、页：v 198,p155-162

发表日期：2018-01-01

影响因子：3.359000

期刊分区（SCI为中科院分区）：二区

收录情况：SCIE（科学引文索引网络版）,ESI（基本科学指标数据库）,CPCI-S（科技会议录索引）,EI（工程索引）

发表期刊名称：Separation and Purification Technology

通讯作者：商剑峰,刘宇峰,王润鹏

第一作者：刘震,姬忠礼,陈鸿海

论文类型：期刊论文

论文概要：刘震,姬忠礼,商剑峰,陈鸿海,刘宇峰,王润鹏，Improved design of two-stage filter cartridges for high sulfur natural gas purification，Separation and Purification Technology，2018，v 198,p155-162

论文题目：Improved design of two-stage filter cartridges for high sulfur natural gas purification