Dissipative particle dynamics simulation on the rheological properties of heavy crude oil
文献类型：期刊论文
| 作者 | Wang, Sibo1,2; Xu, Junbo1; Wen, Hao1 |
| 刊名 | MOLECULAR PHYSICS
 |
| 出版日期 | 2015-11-02 |
| 卷号 | 113期号:21页码:3325-3335 |
| 关键词 | DPD heavy crude oil rheological properties viscosity emulsion |
| ISSN号 | 0026-8976 |
| 英文摘要 | The rheological properties of heavy crude oil have a significant impact on the production, refining and transportation. In this paper, dissipative particle dynamics (DPD) simulations were performed to study the effects of the addition of light crude oil and emulsification on the rheological properties of heavy crude oil. The simulation results reflected that the additionof light crude oil reduced the viscosity effectively. The shear thinning behaviour of crude oil mixtures were becoming less distinct as the increase of the mass fraction of light crude oil. According to the statistics, the shear had an influence on the aggregation and spatial orientation of asphaltene molecules. In addition, the relationship between the viscosity and the oil mass fraction was investigated in the simulations of emulsion systems. The viscosity increased with the oil mass fraction slowly in oil-in-water emulsions. When the oil mass fraction was higher than 50%, the increase became much faster since systems had been converted into water-in-oil emulsions. The equilibrated morphologies of emulsion systems were shown to illustrate the phase inversion. The surfactant-like feature of asphaltenes was also studied in the simulations. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Physics, Atomic, Molecular & Chemical |
| 研究领域[WOS] | Physics |
| 关键词[WOS] | DENSE COLLOIDAL SUSPENSIONS ; MOLTEN ALKALI-HALIDES ; PIPELINE TRANSPORTATION ; MOLECULAR-DYNAMICS ; MESOSCOPIC SIMULATION ; IN-WATER ; ASPHALTENE ; VISCOSITY ; FLOW ; EMULSIONS |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000363980300021 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19813]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing, Peoples R China 2.Univ Chinese Acad Sci, Beijing, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Sibo,Xu, Junbo,Wen, Hao. Dissipative particle dynamics simulation on the rheological properties of heavy crude oil[J]. MOLECULAR PHYSICS,2015,113(21):3325-3335. |
| APA | Wang, Sibo,Xu, Junbo,&Wen, Hao.(2015).Dissipative particle dynamics simulation on the rheological properties of heavy crude oil.MOLECULAR PHYSICS,113(21),3325-3335. |
| MLA | Wang, Sibo,et al."Dissipative particle dynamics simulation on the rheological properties of heavy crude oil".MOLECULAR PHYSICS 113.21(2015):3325-3335. |
入库方式： OAI收割
来源：过程工程研究所
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