Is there a significant difference in the solubility of propylene in benzene and ethylbenzene?
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Recently, the absorbent in the propylene absorption tower of this unit has been changed from benzene to ethylbenzene; will this affect the absorption efficiency?
This post was last edited by qugd on 2018-2-22 at 17:03. In principle, it should have an impact. Ethylbenzene may have a better absorption effect, as its ethyl side chain facilitates the dissolution of aliphatic hydrocarbons, and it also makes it easier to separate propylene from the solvent (the boiling point difference is greater, allowing for fewer trays in the distillation column). But ethylbenzene is expensive.