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Title:
SYSTEM AND PROCESS FOR ENHANCING PROPYLENE POLYMERIZATION
Document Type and Number:
WIPO Patent Application WO/2021/047054
Kind Code:
A1
Abstract:
A system and process for enhancing propylene polymerization. The system comprises: a polymerization reactor, a gas phase feeding unit, a liquid phase feeding unit, a polymeric molecular weight adjustment unit, a reflow unit, a cooling unit, and micro-interface generators. Propylene is broken to form micron-sized bubbles at a microscale, and the micron-sized bubbles are mixed with a solvent to form a gas-liquid emulsion, so as to increase the phase-contacting area of gas and liquid phases, improve polypropylene synthesis efficiency, improve propylene reaction efficiency, and save the cost; heat exchange is performed between raw materials and a produced material by means of a first heat exchanger, a second heat exchanger, and a third heat exchanger, so that energy is saved; and by means of combined use of a first micro-interface generator and a second micro-interface generator, the residence time of the micron-sized bubbles in a reaction zone is prolonged and secondary reaction is enabled between the gas and liquid phases, so that the propylene utilization is improved, the reaction efficiency is improved, the polypropylene production cost is reduced, and requirements of existing circular economy are met.

Inventors:
ZHANG ZHIBING (CN)
LI LEI (CN)
ZHOU ZHENG (CN)
ZHANG FENG (CN)
MENG WEIMIN (CN)
WANG BAORONG (CN)
YANG GAODONG (CN)
LUO HUAXUN (CN)
YANG GUOQIANG (CN)
TIAN HONGZHOU (CN)
CAO YU (CN)
Application Number:
PCT/CN2019/120193
Publication Date:
March 18, 2021
Filing Date:
November 22, 2019
Export Citation:
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Assignee:
NANJING YANCHANG REACTION TECH RESEARCH INSTITUTE CO LTD (CN)
International Classes:
B01J8/00; C08F2/01; C08F10/06
Domestic Patent References:
WO2017025327A12017-02-16
WO2017032683A12017-03-02
Foreign References:
CN109422831A2019-03-05
CN101942051A2011-01-12
CN110002993A2019-07-12
Attorney, Agent or Firm:
BEIJING ZHONGSUO INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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