Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed
Abstract Fluidized beds are widely used in many industrial fields such as petroleum, chemical and energy. In actual industrial processes, spherical inert particles are typically added to the fluidized bed to promote fluidization of non-spherical particles. Understanding mixing behaviors of binary mi...
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KeAi Communications Co., Ltd.
2019
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oai:doaj.org-article:282a7cf8342743b2908b13843618568c2021-12-02T12:44:50ZNon-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed10.1007/s12182-019-00401-41672-51071995-8226https://doaj.org/article/282a7cf8342743b2908b13843618568c2019-11-01T00:00:00Zhttp://link.springer.com/article/10.1007/s12182-019-00401-4https://doaj.org/toc/1672-5107https://doaj.org/toc/1995-8226Abstract Fluidized beds are widely used in many industrial fields such as petroleum, chemical and energy. In actual industrial processes, spherical inert particles are typically added to the fluidized bed to promote fluidization of non-spherical particles. Understanding mixing behaviors of binary mixtures in a fluidized bed has specific significance for the design and optimization of related industrial processes. In this study, the computational fluid dynamic–discrete element method with the consideration of rolling friction was applied to evaluate the mixing behaviors of binary mixtures comprising spherocylindrical particles and spherical particles in a fluidized bed. The simulation results indicate that the differences between rotational particle velocities were higher than those of translational particle velocities for spherical and non-spherical particles when well mixed. Moreover, as the volume fraction of the spherocylindrical particles increases, translational and rotational granular temperatures gradually increase. In addition, the addition of the spherical particles makes the spherocylindrical particles preferably distributed in a vertical orientation.An-Xing RenTian-Yu WangTian-Qi TangYu-Rong HeKeAi Communications Co., Ltd.articleNon-spherical particleFluidized bedDiscrete element methodBinary mixturesScienceQPetrologyQE420-499ENPetroleum Science, Vol 17, Iss 2, Pp 509-524 (2019) |
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DOAJ |
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DOAJ |
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EN |
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Non-spherical particle Fluidized bed Discrete element method Binary mixtures Science Q Petrology QE420-499 |
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Non-spherical particle Fluidized bed Discrete element method Binary mixtures Science Q Petrology QE420-499 An-Xing Ren Tian-Yu Wang Tian-Qi Tang Yu-Rong He Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| description |
Abstract Fluidized beds are widely used in many industrial fields such as petroleum, chemical and energy. In actual industrial processes, spherical inert particles are typically added to the fluidized bed to promote fluidization of non-spherical particles. Understanding mixing behaviors of binary mixtures in a fluidized bed has specific significance for the design and optimization of related industrial processes. In this study, the computational fluid dynamic–discrete element method with the consideration of rolling friction was applied to evaluate the mixing behaviors of binary mixtures comprising spherocylindrical particles and spherical particles in a fluidized bed. The simulation results indicate that the differences between rotational particle velocities were higher than those of translational particle velocities for spherical and non-spherical particles when well mixed. Moreover, as the volume fraction of the spherocylindrical particles increases, translational and rotational granular temperatures gradually increase. In addition, the addition of the spherical particles makes the spherocylindrical particles preferably distributed in a vertical orientation. |
| format |
article |
| author |
An-Xing Ren Tian-Yu Wang Tian-Qi Tang Yu-Rong He |
| author_facet |
An-Xing Ren Tian-Yu Wang Tian-Qi Tang Yu-Rong He |
| author_sort |
An-Xing Ren |
| title |
Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| title_short |
Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| title_full |
Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| title_fullStr |
Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| title_full_unstemmed |
Non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| title_sort |
non-spherical particle mixing behaviors by spherical inert particles assisted in a fluidized bed |
| publisher |
KeAi Communications Co., Ltd. |
| publishDate |
2019 |
| url |
https://doaj.org/article/282a7cf8342743b2908b13843618568c |
| work_keys_str_mv |
AT anxingren nonsphericalparticlemixingbehaviorsbysphericalinertparticlesassistedinafluidizedbed AT tianyuwang nonsphericalparticlemixingbehaviorsbysphericalinertparticlesassistedinafluidizedbed AT tianqitang nonsphericalparticlemixingbehaviorsbysphericalinertparticlesassistedinafluidizedbed AT yuronghe nonsphericalparticlemixingbehaviorsbysphericalinertparticlesassistedinafluidizedbed |
| _version_ |
1718393673389965312 |