期刊
COMPUTERS & CHEMICAL ENGINEERING
卷 71, 期 -, 页码 39-51出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2014.07.013
关键词
Polypropylene; Fluidized bed reactor; Multi-scale modeling; Population balance model; Method of moments; End-use property
资金
- National Ministry of Science and Technology of China [2012C1321500402]
- National 863 plan project of China [2013AA032302]
- Research Fund for the Doctoral Program of Higher Education [20130073110077]
- State Key Laboratory of Chemical Engineering of Tsinghua University [SKL-ChE-10A03]
- China National Petroleum Corporation
A multi-scale product model has been built to characterize the polypropylene (PP) formation dynamics in a catalytic FBR. For the first time, the gas-solid flow field, the morphological and molecular properties of particles, as well as their dynamics can be simultaneously obtained by solving the unique model that couples a CFD model, a population balance model (PBM) and moment equations. The quantitative relationships between the operating conditions and the multi-scale particle properties have been further established. The results demonstrate that the product model can be used to guide a multi-scale generalization of the polymer product from chemical process to product engineering. (C) 2014 Elsevier Ltd. All rights reserved.
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