Intelligent reaction system and method for preparing polypropylene by solution method

• Main Authors: ZHANG ZHIBING, WANG BAORONG, TIAN HONGZHOU, LUO HUAXUN, ZHOU ZHENG, ZHANG FENG, YANG GUOQIANG, YANG GAODONG, LI LEI, MENG WEIMIN, CAO YU
• Format: Patent
• Language: Chinese; English
• Published: 13.11.2020
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The invention provides an intelligent reaction system and method for preparing polypropylene by a solution method. The system comprises a pre-polymerization reactor and a polymerization reactor, whichare connected in sequence; a pre-polymerization micro-interface generator is arranged on the pre-polymerization reactor, and a micro-interface generator set is arranged on the polymerization reactor;the system also comprises a solvent removal tower, the solvent removal tower is used for removing a solvent and impurities from a polypropylene product; a polypropylene inlet is formed in the middleof the solvent removal tower; the polypropylene inlet is connected with the bottom outlet of a flash tank; and a nitrogen micro-interface generator for dispersing and crushing high-temperature nitrogen into micro-bubbles is arranged in the solvent removal tower. The micro-interface generator is arranged on the pre-polymerization reactor; meanwhile, the micro-interface generator set is arranged onthe polymerization reactor,