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HCL acid regular desorption system

In addition to the synthesis reaction between hydrogen and chlorine gas, another common method to obtain HCL gas is through the stripping process. When HCL acid is heated by steam, HCL gas is released.

Technically, the by-product HCL gas is absorbed by water or diluted HCL acid to produce a solution containing 28% to 37% HCL acid. This solution is further desorbed to extract pure HCL gas. The concentration of the desorbed azeotropic acid typically ranges between 17% to 21%, allowing it to be recycled back into the absorption system for recovery and reuse. This cyclical process ensures efficient utilization of resources in the production of HCL gas.