Numerical study on the turbulent reacting flow in the vicinity of the injector of an LDPE tubular reactor

被引:7
作者
van Vliet, E.
Derksen, J. J.
van den Akker, H. E. A.
Fox, R. O.
机构
[1] Delft Univ Technol, Dept Multi Scale Phys, NL-2628 BW Delft, Netherlands
[2] Iowa State Univ, Dept Biol & Chem Engn, Ames, IA 50011 USA
关键词
hydrodynamics; turbulence; chemical reactors; mixing; simulation; filtered density function; low-density polyethylene;
D O I
10.1016/j.ces.2007.01.058
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
Three-dimensional (3-D), transient numerical simulations of the turbulent reacting flow in the vicinity of the initiator injection point of a low-density polyethylene (LDPE) tubular reactor using a large eddy simulation (LES) approach combined with a filtered density function (FDF) technique are presented. The numerical approach allows for detailed predictions of the turbulent flow field and the associated (passive and reactive) scalar mixing. The aim is to study the influence of the injector geometry and initiator injection temperature on the LDPE process in terms of product quality (average polymer chain length, and polydispersity) and process efficiency (such as initiator consumption). (C) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2435 / 2444
页数:10
相关论文
共 11 条
  • [1] Filtered density function for large eddy simulation of turbulent reacting flows
    Colucci, PJ
    Jaberi, FA
    Givi, P
    Pope, SB
    [J]. PHYSICS OF FLUIDS, 1998, 10 (02) : 499 - 515
  • [2] Large eddy simulations on the flow driven by a Rushton turbine
    Derksen, J
    Van den Akker, HEA
    [J]. AICHE JOURNAL, 1999, 45 (02) : 209 - 221
  • [3] INDMARSH AC, 1983, IMACS T SCI COMPUTAT, V1, P55
  • [4] Dynamic simulation of industrial poly(vinyl chloride) batch suspension polymerization reactors
    Kiparissides, C
    Daskalakis, G
    Achilias, DS
    Sidiropoulou, E
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1997, 36 (04) : 1253 - 1267
  • [5] PDF simulations of ethylene decomposition in tubular LDPE reactors
    Kolhapure, NH
    Fox, RO
    Daiss, A
    Mähling, FO
    [J]. AICHE JOURNAL, 2005, 51 (02) : 585 - 606
  • [6] CFD analysis of micromixing effects on polymerization in tubular low-density polyethylene reactors
    Kolhapure, NH
    Fox, RO
    [J]. CHEMICAL ENGINEERING SCIENCE, 1999, 54 (15-16) : 3233 - 3242
  • [7] OBRIEN EE, 1980, TOPICS APPL PHYS TUR, V44, P186
  • [8] PDF modeling of turbulent-mixing effects on initiator efficiency in a tubular LDPE reactor
    Tsai, KC
    Fox, RO
    [J]. AICHE JOURNAL, 1996, 42 (10) : 2926 - 2940
  • [9] Turbulent mixing in a tubular reactor: Assessment of an FDF/LES approach
    van Vliet, E
    Derksen, JJ
    van den Akker, HEA
    [J]. AICHE JOURNAL, 2005, 51 (03) : 725 - 739
  • [10] Subgrid-scale modelling at low mesh Reynolds number
    Voke, PR
    [J]. THEORETICAL AND COMPUTATIONAL FLUID DYNAMICS, 1996, 8 (02) : 131 - 143