Structure open crossflow

For the cases when efficient mixing has to be coupled with a solid-catalyzed reaction a whole family of open-crossflow-structure catalysts has been developed. The best known of them are the so-called KATAPAK s, commercialized by Sulzer. One of them, KATAPAK-M is shown in Figure 10. It has good mixing properties and can simultaneously be used as the support for catalytic material. 

Sulzer SMR static mixer, which has mixing elements made of heat-transfer tubes, and Sulzer s open-crossflow structure catalysts, so-called Katapaks Sulzer (www. sulzer.com) is a Swiss company active in the field of machinery and equipments ... 

Further distinction has to be made between conventional filtration of fine particle less than 10 pm in diameter, and microfiltration. It would be unusual for the filtration of such particles on a conventional fiher cloth to be described as ndcrofiltratian. Thus microfihration is constituted by the filtration of small particles and by the medimn which is used for the filtration. Conventional fihration is undertaken on filter cloths with a very open structure, see Chapter 4, whereas membrane fihration is usua% concerned with fihration enq>loying membrane media where the equivalent pore size is of the order of 10 pm, or less. These definitions are, however, becoming less distinct as it is now possible to obtain conventional fihration equ ment employing membrane-type fiher media, as discussed in Chapter 4, and crossflow microfilters enqploying conventional filter cloth. 

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