Impinging stream device flow configuration

In addition to those shown in Fig. 2, there are many other different structures. Different impinging stream devices may have different flow configurations, although all of them contain the same essential elements (1) the streams flow in opposite directions and impinge against each other, and (2) each stream contains at least one continuous phase. 

The influences of the liquid and gas flow rates, the diameter of the absorption chamber, the distance between nozzles, and the flow configuration on absorption rate were studied by the researchers mentioned above. These will not be discussed in detail here because of the length limitation of the chapter for the details, the reader may refer to the original references as cited in the text above. It should be noted, however, that in all the investigations above, the data for mass transfer coefficients are always correlated with the gas and/or liquid flow rates, but not with the impinging velocity, m0, although the latter is the operation parameter extremely important in every impinging stream device. 

Figure 1 represents the basic principles of gas-solid impinging streams, and also its essential structure as originally designed. On the basis of the essential structure, various devices can be constructed by extending the idea of impinging streams. Two extension schemes of IS have been proposed extension of the flow configuration and extension of the phase conditions of the substance systems involved, as described below. 

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