The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 09, 2022
Filed:
Jun. 18, 2020
Nanjing Yanchang Reaction Technology Research Institute Co., Ltd., Nanjing, CN;
Zhibing Zhang, Nanjing, CN;
Zheng Zhou, Nanjing, CN;
Feng Zhang, Nanjing, CN;
Lei Li, Nanjing, CN;
Weimin Meng, Nanjing, CN;
Baorong Wang, Nanjing, CN;
Gaodong Yang, Nanjing, CN;
Huaxun Luo, Nanjing, CN;
Guoqiang Yang, Nanjing, CN;
Hongzhou Tian, Nanjing, CN;
Yu Cao, Nanjing, CN;
Abstract
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.