Applications of HIGEE for Retrofitting

It is a common perception that electrical power consumption is higher with HIGEE compared with the packed column that it replaces. Table 5.1 shows that electrical energy consumption and the steam requirement are less as the solvent rate is lower and the selective absorption of H2S is much higher with the HIGEE than with the packed column. 

Wang et al. [12] reported that more than 40 Zigzag HIGEE units are in commercial operation in the Chinese pharmaceutical industries. The potential of HIGEE can be gauged from Table 5.2, which is an abridged version of Table 2 of Luo et al. [7]. The potential of HIGEE as an alternative to conventional columns appears to be impressive and deserves 

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