ISSN 14790602 Croft Filters Limited（ISSN 1479 0602克罗夫特过滤器有限）.pdf

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ISSN 14790602 Croft Filters Limited（ISSN 1479 0602克罗夫特过滤器有限）.pdf

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ISSN 14790602 Croft Filters Limited（ISSN 1479 0602克罗夫特过滤器有限）

ISSN 1479-0602 the international journal for filtration and separation FILTRATION is the official journal of The Filtration Society and the American Filtration Separations Society Volume 11 Number 4 www.filtrationsolutions.co.uk Filtration Solutions DIXON RINGS – A REVOLUTIONARY RANDOM COLUMN PACKING Robert Alford, Mark Burns and Neil Burns (neil@filters.co.uk) Croft Engineering Services, 2 Beech Court, Taylor Business Park, Risley, Warrington, WA3 6BL, UK. Dixon rings were developed in 1946 by Dr Olaf George Dixon while working for ICI and are currently used where high performance is essential. There are a number of published papers on the characterisation of Dixon rings as used in distillation applications; however, there is little published work on the countercurrent (scrubbing) performance of Dixon rings. Croft Engineering Services have developed a revolutionary manu- facturing method for Dixon rings that can be used in both countercurrent absorption (scrubbing columns) including scrubbing of CO2 from air, as well as hard distillation separations such as tritium from water. This cylindrical mesh item of small size in comparison to the market leaders (Pall rings, Intalox saddles) offers superior performance in a range of applications. The current paper contains a detailed analysis of Di