کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
173999 458622 2006 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Modeling and analysis of a plant for the production of low density polyethylene
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Modeling and analysis of a plant for the production of low density polyethylene
چکیده انگلیسی

In this paper a detailed dynamic mathematical model of a plant for the production of low density polyethylene (LDPE) is derived. Besides the main part, a tubular reactor, the plant comprises compressors, heat exchangers and material recycles. The dynamic model for the overall system consists of differential, partial differential and algebraic equations. For the numerical solution with the simulator DIVA, this system is transformed into a system of differential and algebraic equations. For the transformation an adaptive finite difference scheme is used. With this mathematical model, the influence of the reactor wall and the influence of the material recycles on the plant dynamics is studied. In particular, it is shown that the reactor wall due to its high thermal capacity dominates the time constant of the stand alone reactor. By closing the material recycles the time constant is significantly increased. In addition, the recycles give rise to intricate nonlinear behavior.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Chemical Engineering - Volume 31, Issue 2, 1 December 2006, Pages 51–65
نویسندگان
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