首页|3D coarse-grained DPM simulation of the MIP reaction-regeneration loop
3D coarse-grained DPM simulation of the MIP reaction-regeneration loop
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The reactor-regenerator loop is the core facility of the maximizing iso-paraffin(MIP)process.Although the discrete particle method(DPM)simulation can provide detailed information at the particle scale,it has been unable to simulate such a complex loop system due to limitations of coarse-grained(CG)models,computing software,and hardware.In this study,a newly proposed soft-shell CG-DPM model with a CG ratio of up to 800 is used to simulate a 3.5 Mt/a industrial-scale MIP reactor-regenerator loop.The solid fraction distribution obtained is found to agree well with in-situ measurements.Hydrodynamic properties including the distribution of solid fraction,gas and solid velocity,standard derivation of solid fraction with time,temporal distribution of the flow field,and particle residence time distribution are measured in the simulation,which are meaningful to better design and operate such systems in the future.
Discrete particle methodCoarse-grainMaximizing iso-paraffinsFull-loopReaction-regeneration system
Yanhao Ye、Shuai Zhang、Ji Xu、Wei Ge
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State Key Laboratory of Mesoscience and Engineering(formerly State Key Laboratory of Multiphase Complex Systems),Institute of Process Engineering,Chinese Academy of Sciences,Beijing,100190,China
School of Chemical Engineering,University of Chinese Academy of Sciences,Beijing,100049,China
国家重点研发计划国家自然科学基金国家自然科学基金Youth Innovation Promotion Association,Chinese Academy of Sciences
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NSTL
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