A method and system for purifying high-purity organic solvent cyclohexane

Abstract

This invention discloses a method and system for purifying high-purity organic solvent cyclohexane, relating to the field of cyclohexane production technology. The method includes the following steps: S1: Introducing a cyclohexane-containing feedstock into a distillation column for distillation; S2: During distillation, contact and mass transfer between the gas and liquid phases are achieved through a float valve assembly, separating cyclohexane from impurities in the feedstock; S3: Passively modulating the gas flow state entering the float valve assembly, changing the velocity distribution and angular momentum of the gas flow without altering the overall gas flow direction. This invention relies entirely on the kinetic energy of the gas-liquid flow within the distillation column to trigger passive modulation, without consuming external energy. Simultaneously, the modulation process adaptively adjusts in real time according to the gas-liquid flow state, requiring no external intervention in operating conditions, effectively avoiding the lag and complexity of traditional technologies that rely on external mechanical regulation.

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