Micro-interface strengthening reaction system and method for preparing polyethylene by using a solution process

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United States of America Patent

PATENT NO 11406959
SERIAL NO

17617950

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Abstract

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A micro-interface strengthening reaction system and method for preparing polyethylene by using a solution process are provided. The system includes a pre-polymerization reactor and a polymerization reactor connected in sequence. The pre-polymerization reactor is provided with a pre-polymerization micro-interface generators, and the polymerization reactor is provided with a micro-interface generator. The system further includes a desolvation tower for removing solvents and impurities from the polyethylene product. A polyethylene inlet is disposed at a middle part of the desolvation tower, and the polyethylene inlet is connected with the flash tank bottom outlet. A nitrogen micro-interface generator for dispersing and breaking high-temperature nitrogen into micro-bubbles is disposed within the desolvation tower. Through installing the micro-interface generators on the pre-polymerization reactor and the micro-interface and on the polymerization reactor, the mass transfer area between gas phase and liquid phase is increased, the reaction efficiency is improved, and energy consumption is reduced.

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Patent Owner(s)

  • NANJING YANCHANG REACTION TECHNOLOGY RESEARCH INSTITUTE CO., LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cao, Yu Nanjing, CN 387 9071
Li, Lei Nanjing, CN 575 3559
Luo, Huaxun Nanjing, CN 13 4
Meng, Weimin Nanjing, CN 15 5
Tian, Hongzhou Nanjing, CN 13 4
Wang, Baorong Nanjing, CN 20 33
Yang, Gaodong Nanjing, CN 17 5
Yang, Guoqiang Nanjing, CN 25 28
Zhang, Feng Nanjing, CN 898 23240
Zhang, Zhibing Nanjing, CN 36 68
Zhou, Zheng Nanjing, CN 105 448

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