SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2019, Vol. 27 ›› Issue (1): 32-43.DOI: 10.1016/j.cjche.2018.04.004

• Fluid Dynamics and Transport Phenomena • 上一篇    下一篇

Hydrate agglomeration modeling and pipeline hydrate slurry flow behavior simulation

Guangchun Song, Yuxing Li, Wuchang Wang, Kai Jiang, Zhengzhuo Shi, Shupeng Yao   

  1. Shandong Key Laboratory of Oil-Gas Storage and Transportation Safety, College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China
  • 收稿日期:2018-01-30 修回日期:2018-04-03 出版日期:2019-01-28 发布日期:2019-01-31
  • 通讯作者: Yuxing Li, Wuchang Wang
  • 基金资助:

    Supported by Shandong Provincial Natural Science Foundation, China (ZR2017MEE057), the Fundamental Research Funds for the Central Universities (14CX02207A, 17CX05006, 17CX06017) and the Graduate Innovation Project of China University of Petroleum (East China) (YCX2017062).

Hydrate agglomeration modeling and pipeline hydrate slurry flow behavior simulation

Guangchun Song, Yuxing Li, Wuchang Wang, Kai Jiang, Zhengzhuo Shi, Shupeng Yao   

  1. Shandong Key Laboratory of Oil-Gas Storage and Transportation Safety, College of Pipeline and Civil Engineering, China University of Petroleum, Qingdao 266580, China
  • Received:2018-01-30 Revised:2018-04-03 Online:2019-01-28 Published:2019-01-31
  • Contact: Yuxing Li, Wuchang Wang
  • Supported by:

    Supported by Shandong Provincial Natural Science Foundation, China (ZR2017MEE057), the Fundamental Research Funds for the Central Universities (14CX02207A, 17CX05006, 17CX06017) and the Graduate Innovation Project of China University of Petroleum (East China) (YCX2017062).

摘要: Dynamic modeling and numerical simulation of hydrate slurry flow behavior are of great importance to offshore hydrate management. For this purpose, a dynamic model of hydrate agglomeration was proposed in this paper. Based on population balance equation, the frame of the dynamic model was established first, which took both hydrate agglomeration and hydrate breakage into consideration. Then, the calculating methods of four key parameters involved in the dynamic model were given according to hydrate agglomeration dynamics. The four key parameters are collision frequency, agglomeration efficiency, breakage frequency and the size distribution of sub particles resulting from particle breakage. After the whole dynamic model was built, it was combined with several traditional solid-liquid flow models and then together solved by the CFD software FLUENT 14.5. Finally, using this method, the influences of flow rate and hydrate volume fraction on hydrate particle size distribution, hydrate volume concentration distribution and pipeline pressure drop were simulated and analyzed.

关键词: Hydrate, Agglomeration, Flow behavior, Dynamic model, Numerical simulation, Population balance

Abstract: Dynamic modeling and numerical simulation of hydrate slurry flow behavior are of great importance to offshore hydrate management. For this purpose, a dynamic model of hydrate agglomeration was proposed in this paper. Based on population balance equation, the frame of the dynamic model was established first, which took both hydrate agglomeration and hydrate breakage into consideration. Then, the calculating methods of four key parameters involved in the dynamic model were given according to hydrate agglomeration dynamics. The four key parameters are collision frequency, agglomeration efficiency, breakage frequency and the size distribution of sub particles resulting from particle breakage. After the whole dynamic model was built, it was combined with several traditional solid-liquid flow models and then together solved by the CFD software FLUENT 14.5. Finally, using this method, the influences of flow rate and hydrate volume fraction on hydrate particle size distribution, hydrate volume concentration distribution and pipeline pressure drop were simulated and analyzed.

Key words: Hydrate, Agglomeration, Flow behavior, Dynamic model, Numerical simulation, Population balance