Mathematical modeling of an industrial process of nylon-6,6 polymerization in a two-phase flow tubular reactor

被引：13

作者：

Giudici, R

Nascimento, CAO

Tresmondi, A

Domingues, A

Pellicciotta, R

机构：

[1] Univ Sao Paulo, Dept Engn Quim, Escola Politecn, BR-05424970 Sao Paulo, SP, Brazil

[2] Rhodia Brasil Rhone Poulenc, Ctr Pesquisas Paulinia, BR-13140000 Paulinia, SP, Brazil

[3] Fairway Filamentos, BR-09210900 Santo Andre, SP, Brazil

来源：

CHEMICAL ENGINEERING SCIENCE | 1999年 / 54卷 / 15-16期

基金：

巴西圣保罗研究基金会;

关键词：

mathematical model; simulation; nylon-6,6 polymerization; two-phase flow; tubular reactor;

D O I：

10.1016/S0009-2509(98)00371-6

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A mathematical model was developed to simulate the industrial process of nylon-6,6 polymerization. The process is carried out mainly in a tubular reactor under two-phase flow conditions ("flasher tube"). The model included equations for the single phase flow and the two-phase flow. The beginning of the two-phase region is determined as the point where the vapor pressure equals the total pressure. Pressure drop calculations account for frictional, gravitational, and accelerational terms, as well as for the head losses in fittings and tube expansions. Available corrections for helical coiled tubes and npn-Newtonian fluids are taken into account. After parameter adjustment, the model was validated by comparison with industrial plant data and then successfully applied to debottlenecking studies in the industrial plant. (C) 1999 Elsevier Science Ltd. All rights reserved.

引用

页码：3243 / 3249

页数：7

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