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Research on the development of waste oil treatment using membrane separation technology from the perspective of patent

Authors： FENG Jun, KE Wei, QIU Minghui, ZHANG Jun

Units： 1. National Intellectual Property Information Service Center of Nanjing Tech University, Nanjing Tech University, Nanjing 211816; 2. Nanjing Industrial Technology Research Institute of Membrane Material Co., Ltd., Nanjing 211800; 3. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing 211816

KeyWords： waste lubricating oil; waste oil treatment; membrane separation; patent analysis

ClassificationCode：G306

year,volume(issue):pagination： 2021,41(5):155-164

Abstract：

The development of waste oil treatment using membrane separation technology was researched from the perspective of patent. The patents were system analyzed from the aspects of application trend, technology source country, patentee, technology branches and etc. The important information such as technology development thread, patent portfolio of key patentees, research hotspots and so on are revealed. And the core patents of three important technology branches that is organic membrane waste oil treatment technology, ceramic membrane waste oil treatment technology and strengthening or integration of membrane separation process are mined and interpreted. Based on the results of patent analysis, it is suggested to increase the application of overseas patent, pay more attention to the application of membrane separation technology in crude oil desalination and dehydration, base oil dewaxing and other fields, strengthen the research of integrated process of membrane separation with waste oil refining technologies, such as distillation, hydrogenation catalysis and etc.

Funds：

江苏高校哲学社会科学研究基金项目“基于专利信息利用行为大数据分析的高校图书馆创新服务研究”（项目编号2018SJA0183）

AuthorIntro：

冯君（1980-），女，江苏淮安人，博士，研究馆员，研究方向：专利信息分析，学科情报研究，E-mail: fengjun@njtech.edu.cn

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