Solvent Recovery System

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From an economical point of view, a fourfold effect system is recommended for dehydration system. In this system overhead of 1st column is used to heat the bottom of the 2nd column. And 2nd column is used to heat the bottom of the 3rd column. And 3rd and 4th column is same system. As compared with one column system, steam consumption of fourfold system can be reduced to approximately one-quarter.