Heraeus Nitro Technologies - Katalysatoren

Warp KnittingKnittingWarp knitted structureMore than a decade ago, Heraeusfirst developed and introduced a newproduction technique for catalystgauzes: warp knitting. This patentedproduction technique proved sosuccessful that soon the majority ofcatalyst gauzes in use throughout theworld are now manufactured usingthis technique. The traditional wovencatalyst gauzes have almost entirelybeen replaced by knitted products.to their inherent features:high mechanical strengthand form stability“self repairing” behaviourlow pressure drophigh surface arealow platinum lossesminimal rate of rhodiumoxide formationhigh conversion rate and selectivitylong operating cyclesThe choice of the warp knitting techniquewas made by Heraeus afterextensive comparative testing ofseveral different gauze structuresproduced with varying productiontechniques supported by mathematicalmodelling and simulation of thereaction processes. The warp knittedgauze proved best due to its outstandingperformance under industrialoperating conditions and becauseof the versatility of the warp knittingproduction technique itself.The Heraeus Nitro Technologies warpknitted catalyst gauzes are uniquelywell suited for catalyst reactions dueThe versatility of the warp knittingtechnique enables the manufactureof gauzes with:a large selection of gauze structuresa large selectionof specific catalyst weightsa wide range of gauze diametersa wide range of wire diametersa multitude of alloy specificationsfast productionand short delivery timesHeraeus Nitro Technologies continuesto offer woven products for the fewremaining customers wishing to usethis technology.4