Study on the mechanism of magnetic paraffin control of crude oil based on the reorientation of paraffin crystals induced by magnetic field
The wax deposition during pipeline transportation impedes the flow of crude oil and eventually blocks the pipelines.Magnetic paraffin control (MPC) technology has been extensively adopted for its advantage in energy-saving and pollution reduction.In order to clarify the scientific essence of MPC problem,energy transition mechanism of paraffin control has been investigated based on the theory of molecular reorientation.Meanwhile,the mechanism of magnetic orientation of paraffin crystals was also studied in detail.Results show that diamagnetic anisotropy is the fundamental cause for which diamagnetic paraffin molecules can respond to magnetic field.Furthermore,magnetic-field-induced rotation of paraffin molecules could be remarkably enhanced by the ordered structure of paraffin molecules,such as liquid lamellar structures and paraffin crystallites,which could make it possible to overcome energy barrier and induce the orientation of paraffin molecules.In addition,the effect of magnetic orientation on the formation of paraffin crystal network was also investigated detailedly,and a novel MPC mechanism based on magnetic orientation of paraffin crystal was proposed.This research is of great significance to improve the paraffin control technology and its theoretical principle in our country.
crude oil wax deposition paraffin control magnetic orientation
Zhang Weiwei Wang Dandan Wang Tingting Zhang Sanchuan
School of Mechanical Engineering, Zhengzhou University, Zhengzhou 450001, China School of Foreign Language, Zhengzhou University, Zhengzhou 450001, China
国际会议
重庆
英文
137-141
2015-03-21（万方平台首次上网日期，不代表论文的发表时间）