Isopropylbenzene production device with combination of side-stream reactor and external thermal coupling rectifying tower and production method of isopropylbenzene production device with combination of side-stream reactor and external thermal coupling rectifying tower

• Main Authors: ZHAO YUCHI, QU JIFA, ZHANG JIANWEI, DING YUFEI, LEE SONGOL, XUE YUNBO, DING LIANGHUI
• Format: Patent
• Language: Chinese; English
• Published: 02.01.2024
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention provides an isopropylbenzene production device and method combining a side-line reactor and an external thermal coupling rectifying tower, the isopropylbenzene production device comprises a side-line reaction device, a benzene recovery tower and an isopropanol purification tower, the side-line reactor is coupled with the benzene recovery tower with a side-line heat exchanger; the side reactor at the bottommost end receives diisopropylbenzene extracted from the tower bottom of the isopropylbenzene purifying tower; after the benzene reacts with the propylene and the side line discharged material of the benzene recovery tower or the tower top condensate in the side line reactor, unreacted benzene is recovered through the benzene recovery tower, and the residual material enters the isopropylbenzene purification tower to obtain high-purity isopropylbenzene; the pressure of the benzene recovery tower and the cumene purification tower is controlled, and the heat integration of the two towers can be rea