Methanol and acetone removal unit, and phenol and bisphenol A production system including the same

摘要

Provided is a removal unit of methanol and acetone which is provided in a system including a production system of phenol having a decomposition reaction unit and a purification unit, and a production system of bisphenol A having a reaction unit and a concentration unit. The removal unit includes a removal column, a supply part provided in the midsection of the removal column, an overhead purge part in which methanol and acetone are removed, and a bottom recirculation part recirculated to the purification unit, wherein the supply part includes a purification unit discharge part in which methanol, acetone, and water are included, and a concentration unit discharge part in which phenol, acetone, and water are included. The removal unit may be included in the production system of phenol and bisphenol A, in which case the productivity of bisphenol A may be improved and the lifespan of a catalyst in a reactor may be improved.