Meili Liu
Meili Liu, female, holds a PhD in Engineering and is a professor. She is also a master's/doctoral supervisor, a recipient of the China Scholarship Council Visiting Scholar Award, a director of the China Environmental Protection Machinery Industry Association, a young member of the Filtration and Separation Specialty Committee of the China Chemical Industry Society, and a young editorial board member of the Petroleum Journal (Petroleum Processing). Since September 2012, she has been teaching at the School of Mechanical Engineering, Beijing Institute of Petrochemical Technology.
Focusing on the fields of clean energy and energy-saving and environmental protection technologies, she is engaged in scientific research related to the theoretical study of multiphase flow and separation of oil, gas, water, and solids, the development of efficient separation technologies and equipment, and flow field analysis and regulation methods. In alignment with the major strategic needs of national energy security and the construction of a beautiful China, she conducts applied basic research and engineering application research on efficient and compact multiphase separation and treatment of oil well output and energy conservation and emission reduction in the petrochemical industry. Notably, the series of tubular oil-water separation technologies and equipment developed under her leadership based on flow field control theory have been industrialized, significantly enhancing China's independent design and research capabilities in oil and gas development engineering safety assurance and green environmental protection separation engineering supporting equipment. She has led and participated in the completion of more than 30 projects, including the National Natural Science Foundation of China, general projects of the Science and Technology Plan of the Beijing Municipal Education Commission, sub-projects of the National Science and Technology Major Special Projects during the 13th Five-Year Plan period, and projects from enterprises such as CNOOC, Sinopec, and PetroChina. She has published more than 50 academic papers, including more than 30 papers indexed by SCI/EI, and has been granted more than 10 national invention patents.
I. Major Research Areas
1. Research and development of compact and efficient liquid-liquid, solid-liquid, and gas-solid separation equipment;
2. Research on multiphase flow and separation theory;
3. Numerical simulation and experimental testing analysis of multiphase flow.
II. Rewards and Honors
1. Chen Jiaqing, ..., Liu Meili (11th), et al. Construction and Practice of a Characteristic Application-oriented Talent Training Model for Environmental Engineering Majors in Industry-transferred Colleges and Universities. Special Award for Teaching Achievements in Petroleum Higher Education (Undergraduate) in 2024, 2024.
2. Chen Jiaqing, Zhu Ling, Liu Meili, Ji Yipeng, Zhou Cuihong, et al. Construction of a characteristic textbook system for undergraduate talent cultivation in environmental engineering based on competency orientation, Second Prize of Beijing Education and Teaching Achievements Award, 2022.
3. Yu Bo, Wang Yi, Sun Xu, Yang Xuefei, Liu Meili, et al. "Applied Fluid Dynamics" (Second Edition), won the first prize of the 2021 China Petroleum and Chemical Industry Excellent Publications Award (Textbook Award), 2021.
4. Liu Meili. A tubular pre-water distribution device capable of automatic exhaust. Excellent Supervisor (First Prize) in the 8th "Jerry Cup" China Graduate Student Energy Equipment Innovation Design Competition, 2021.
5. Chen Jiaqing, Liu Meili. A Novel Adjustable Oil-Water Mixing Valve for Crude Oil Desalting. Excellent Supervisor (First Prize) of the 5th China Graduate Petroleum Equipment Innovation Design Competition, 2018.
6. Chen Jiaqing, Yu Jiecheng, Liu Meili, Zou Yu. "Fundamentals and Engineering Applications of ANSYS FLUENT Technology", First Prize of China Petroleum and Chemical Industry Publication Award (Textbook Award) in 2016, 2017.
III. Research Projects
1. Youth Fund Project of National Natural Science Foundation of China: Research on Turbulent Coherent Structures and Regulation Mechanisms of Hydrocyclones Based on Vortex Breakdown and Drag Reduction Concept (Project No.: 21908008), Project Leader, January 2020 - December 2022.
2. Corporate Project: Indoor Testing of Oil-Water Separation Characteristics in Pulsating Flow Fields, Project Leader, 2025-2026.
3. Corporate Project: Dehydration Characteristics Testing of Cascade Dehydration Pilot Module for High Water-Cut Crude Oil, Project Leader, 2024-2025.
4. Corporate Project: Testing and Analysis of Separation Characteristics of High Water-Cut Crude Oil Cascade Dehydration Technology, Project Leader, 2022-2023.
5. Corporate Project: Experimental Research on High-Efficiency Crude Oil Dehydrator, Project Leader, 2020-2021.
6. Corporate Horizontal Project: Computational Simulation of Flow Field in Wear-Resistant Separation Structure of Flash Tank, Project Leader, 2018-2019.
7. Corporate Horizontal Project: Flow Field Testing and Analysis of Torch Burner Ejection Device, Project Leader, 2018-2019.
8. General Project of Science and Technology Plan of Beijing Municipal Education Commission: Research on the Mechanism and Characteristics of Inline Compact Separation Technology for Pre-dehydration of Produced Fluids from High Water-Cut Oil Wells (Project No.: KM201510017008), Project Leader, January 2015 - December 2016.
IV. Representative Publications
[1] Zhengrui Hu, Meili Liu*, Yongxiang Feng, Zheyuan Zhang, Jiaqing Chen*, Pingping Qiao. Experimental and numerical study on a new radial hydrocyclone with flow field conditioning [J]. Powder Technology, 2025, 458: 120947.
[2] Pingping Qiao, Meili Liu*, Zheyuan Zhang, Yongxiang Feng, Jiaqing Chen. Separation performance and centrifugal characteristics of a cascade dewatering equipment [J]. Separation and Purification Technology, 2025, 360:131075.
[3] Meili Liu, Zhengrui Hu, Shichang Peng, Jiaqing Chen, Pingping Qiao. Rapid demulsification and dehydration characteristics of Pickering emulsions under the action of an electric field [J]. Petroleum Science and Technology, 2025, 43(20): 2789-2805.
[4] Meili Liu, Pingping Qiao, Zhengrui Hu, Yaoyuan Zhang, Jiaqing Chen. Effect of a vortex plate on turbulent flow within an xial hydrocyclone for preliminary water separation [J]. International Journal of Oil, Gas and Coal Technology, 2024 36(1):37-54.
[5] Yaoyuan Zhang, Pingping Qiao, Zhengrui Hu, Jiaqing Chen, Meili Liu*, Shichang Peng. Design of an Axial Hydrocyclone for Preliminary Water Separation Using CFD, RSM, and SUS[J]. Chemical Engineering Research and Design, 2024, 204: 193-200.
[6] Meili Liu, Changyan Kong, Yaoyuan Zhang, Jiaqing Chen, Shichang Peng. Effect of Gas on Separation Performance of an Axial Hydrocyclone[J]. Powder Technology, 2023, 425:118581.
[7] Peng Shichang, Liu Meili*, Bai Chunlu, Kong Changyan, Chen Jiaqing, Zhang Yaoyuan. Adaptability Analysis of Grid Types for Turbulence Simulation in Hydrocyclones [J]. Acta Petrolei Sinica (Petroleum Processing)
[8] Kong Changyan, Liu Meili*, Chen Jiaqing, Bai Chunlu, Wang Qiangqiang, Peng Shichang, et al. Scaling design of tubular cyclone pre-separation equipment for oil well produced fluid [J]. Acta Petrolei Sinica (Petroleum Processing), 2023, 39(1): 164-173
[9] Jiamin Ma, Jinting Zhang, Jiedong Zhang, Meili Liu*, Changyan Kong. Experimental study of flow and entrainment characteristics of an ejector for a petrochemical flare system. International Journal of Oil, Gas and Coal Technology, 2022, 30(4):.434-448.
[10] Liu Wenting, You Minghao, Zhan Minshu*, Li Zhaoyang, Liu Meili*, Wang Jianhong. Cake formation and filtration characteristics of a cyclone-granular bed filter, Powder Technology, 2020, 374: 152-15.
[11] Yanhe Han, Lei Zhang, Meili Liu, Junfeng Niu. Numerical simulation of the hydrodynamic behavior and the synchronistic oxidation and reduction in an internal circulation micro-electrolysis reactor. Chemical Engineering Journal, 2020, 381: 122709.
[12] Minghao You, Zhaoyang Li, Minshu Zhan*, Meili Liu*, Guogang Sun, Jiaqing Chen. Flow simulation and performance analysis of a cyclone-granular bed filter, Powder Technology, 2020, 361: 210-219.
[13] Zhang Lei, Wu Mengyu, Han Yanhe, Liu Meili, Niu Junfeng. Structural parameter optimization for novel internal-loop iron-carbon micro-electrolysis reactors using computational fluid dynamics. Chinese Journal of Chemical Engineering, 2019, 27(4): 737-744.
[14] Meili Liu, Liuhai Feng, Yu Mao, Juan Wang, Jiangyun Wang. Experimental and numerical study on the flow behavior in a jet-driven swirling flow. Separation Science and Technology, 2019, 54(4): 642-655.
[15] Ma Jiamin, Wang Botao, Li Hukun, Fan Xiongjie, Liu Cunxi, Liu Meili*. Numerical simulation of atomization characteristics of swirl atomizing nozzles. Aeroengine, 2019, 45(5): 53-57
V. Patents and Software Copyrights
1. Liu Meili, Kong Changyan, Chen Jiaqing, et al. Oil-gas-water separation equipment [P]. China, Invention Patent, ZL2021104723495, Date of Authorization Announcement: 2024.5.31
2. Liu Meili, Zhang Yaoyuan, Chen Jiaqing, et al. Vertical tank-type oil-water two-stage three-time separation equipment [P]. China, Invention Patent, ZL2022104333022, Date of Authorization Announcement: April 7, 2023
3. Liu Meili, Chen Jiaqing, Liu Ruihe, et al. A low-resistance and high-efficiency oil-water cyclone separation device, Chinese invention patent, ZL2016105435704, date of authorized announcement: March 22, 2022
4. Liu Meili, Ma Jiamin, Chen Jiaqing, Kong Changyan, Wang Qiangqiang. A multi-tube degassing and water separation device, China, Invention Patent of the People's Republic of China, ZL 2020114891134, Date of Authorization Announcement: March 1, 2022
5. Liu Meili, Chen Jiaqing, Guo Sizhen, Ji Yipeng, et al. An oil-water cyclone separator with degassing function, Chinese invention patent, ZL2018100461203, publication date: April 3, 2020
6. Liu Meili, Chen Jiaqing, Han Yanhe. An offshore oilfield oil-gas-water gathering and transportation system and method, Chinese invention patent, ZL201610109553X, date of authorized announcement: June 8, 2018
7. Liu Meili, Chen Jiaqing. A tubular oil-water cyclone separation device, Chinese invention patent, ZL201610109027.3, authorized announcement date: 2017.11.17
VI. Admissions Information
She is currently recruiting students for the academic master's degree program in Environmental Science and Engineering (0830) (specializing in green separation and resource recovery of multiphase fluids) and the professional master's degree program in Resources and Environment (0857) (specializing in oil and gas processing and safety engineering). Students from majors such as environmental equipment engineering, environmental engineering, process equipment and control engineering, oil and gas storage and transportation engineering, chemical engineering, energy and power engineering are sincerely welcome to join our research team.
(1) Website of the research team on efficient separation technology and equipment for environmental multiphase flow: https://separation-en.bipt.edu.cn/
(2) WeChat official account of the research team on efficient separation technology and equipment for environmental multiphase flow:
