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Hasib R, Anand V, Naik VM, Juvekar VA, Thaokar RM. Mitigating Noncoalescence and Chain Formation in an Electrocoalescer by Electric Field Modulation. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c02202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Raunaq Hasib
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra400076, India
- Department of Chemical Engineering, Aligarh Muslim University, Aligarh, Uttar Pradesh202002, India
| | - Vikky Anand
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra400076, India
- Department of Chemical Engineering, Indian Institute of Technology Jodhpur, Jodhpur, Rajasthan342037, India
| | - Vijay M. Naik
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra400076, India
| | - Vinay A. Juvekar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra400076, India
| | - Rochish M. Thaokar
- Department of Chemical Engineering, Indian Institute of Technology Bombay, Mumbai, Maharashtra400076, India
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Peng Y, Liao Z, Zhang Y, Fang Y, Qiu Z, Yu B, Gong H. Analysis of deformation dynamics of droplet in oil under the CPG electric field. Chem Eng Res Des 2022. [DOI: 10.1016/j.cherd.2022.05.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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3
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He X, Zhang BX, Wang YF, Zhang YY, Yang YR, Wang XD, Lee DJ. Dynamic coalescence of two charged droplets with deflected angles in the presence of electric fields. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.118812] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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4
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Numerical simulation of dynamic characteristics of droplet in oil under a CPPM electric field. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2021.117248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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He X, Zhang BX, Wang SL, Wang YF, Yang YR, Wang XD, Lee DJ. Electrocoalescence of two charged nanodroplets under different types of external electric fields. J Mol Liq 2021. [DOI: 10.1016/j.molliq.2021.117417] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Huang X, He L, Luo X, Xu K, Lü Y, Yang D. Charge-Transfer-Induced Noncoalescence and Chain Formation of Free Droplets under a Pulsed DC Electric Field. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:14255-14267. [PMID: 33206532 DOI: 10.1021/acs.langmuir.0c02371] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Electrocoalescence technology is an important method for the demulsification of crude oil emulsion, but its development is restricted by the short circuit caused by droplet chain formation. To reveal the formation mechanism of droplet chains, the electrocoalescence behaviors of two droplets and droplet clusters under pulsed direct current (DC) electric fields are experimentally studied. The two droplets usually successively undergo complete coalescence, partial coalescence, and noncoalescence as the electric field strength increases. The critical electric field strengths for complete coalescence under pulsed DC electric fields with different frequencies are obtained. The effects of the electric field waveform and frequency on the noncoalescence characteristics of two droplets and the stability of droplet chains are explored. The droplet chains under a high-frequency electric field are more stable and longer than those under a low-frequency electric field due to the reduction of the movement distance and the generation of daughter droplets from tip streaming. The reversal of the composition of electric forces due to charge transfer is the fundamental mechanism of noncoalescence of two droplets and chain formation in the emulsion under a pulsed DC electric field.
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Affiliation(s)
- Xin Huang
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Limin He
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
- Surface Engineering Pilot Test Center, China National Petroleum Corporation, Daqing 163000, China
| | - Xiaoming Luo
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
- Surface Engineering Pilot Test Center, China National Petroleum Corporation, Daqing 163000, China
| | - Ke Xu
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
| | - Yuling Lü
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
- Surface Engineering Pilot Test Center, China National Petroleum Corporation, Daqing 163000, China
| | - Donghai Yang
- College of Pipeline and Civil Engineering, China University of Petroleum (East China), Qingdao 266580, China
- Surface Engineering Pilot Test Center, China National Petroleum Corporation, Daqing 163000, China
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Structural optimization of a demulsification and dewatering device coupled with swirl centrifugal and high-voltage fields by response surface methodology combined with numerical simulation. Chem Eng Res Des 2019. [DOI: 10.1016/j.cherd.2019.06.023] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gong H, Yu B, Peng Y, Dai F. Promoting coalescence of droplets in oil subjected to pulsed electric fields: changing and matching optimal electric field intensity and frequency for demulsification. J DISPER SCI TECHNOL 2019. [DOI: 10.1080/01932691.2018.1505525] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Haifeng Gong
- Engineering Research Centre for Waster Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing, China
- School of Mechanical Engineering, Chongqing University of Technology, Chongqing, China
| | - Bao Yu
- School of Mechanical Engineering, Chongqing University of Technology, Chongqing, China
| | - Ye Peng
- Engineering Research Centre for Waster Oil Recovery Technology and Equipment of Ministry of Education, Chongqing Technology and Business University, Chongqing, China
| | - Fei Dai
- School of Mechanical Engineering, Chongqing University of Technology, Chongqing, China
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Peng Y, Yu B, Zhang X, Li W, Gong H. Heat strengthening of double-field coupling demulsification of industrial waste oil emulsion. APPLIED PETROCHEMICAL RESEARCH 2018. [DOI: 10.1007/s13203-018-0221-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022] Open
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10
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Simulation on performance of a demulsification and dewatering device with coupling double fields: Swirl centrifugal field and high-voltage electric field. Sep Purif Technol 2018. [DOI: 10.1016/j.seppur.2018.06.049] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Gong H, Yu B, Dai F, Peng Y. Influence of electric field on water-droplet separated from emulsified oil in a double-field coupling device. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Xu B. Fast and Energy-efficient Demulsification for Crude Oil Emulsions Using Pulsed Electric Field. INT J ELECTROCHEM SC 2017; 12:9242-9249. [DOI: 10.20964/2017.10.84] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Review of the Dynamics of Coalescence and Demulsification by High-Voltage Pulsed Electric Fields. INTERNATIONAL JOURNAL OF CHEMICAL ENGINEERING 2016. [DOI: 10.1155/2016/2492453] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The coalescence of droplets in oil can be implemented rapidly by high-voltage pulse electric field, which is an effective demulsification dehydration technological method. At present, it is widely believed that the main reason of pulse electric field promoting droplets coalescence is the dipole coalescence and oscillation coalescence in pulse electric field, and the optimal coalescence pulse electric field parameters exist. Around the above content, the dynamics of high-voltage pulse electric field promoting the coalescence of emulsified droplets is studied by researchers domestically and abroad. By review, the progress of high-voltage pulse electric field demulsification technology can get a better understanding, which has an effect of throwing a sprat to catch a whale on promoting the industrial application.
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