سال انتشار: ۱۳۸۶

محل انتشار: پنجمین کنگره بین المللی مهندسی شیمی

تعداد صفحات: ۶

نویسنده(ها):

Saeed Khajehmandali – R&D Center of Arak Petrochemical Company,Arak, Iran
Sasan Talebnezhad – R&D Center of Arak Petrochemical Company,Arak, Iran

چکیده:

We present the development of steady-state model for a slurry HDPE process using fundamental chemical engineering principles and advanced software tool, Polymers Plus. The discussion includes thermodynamic properties, phase equilibrium, reaction kinetics, polymer properties, and other modeling issues. We characterize a Ziegler-Natta catalyst by assuming the existence of multiple catalyst site types and deconvoluting data from gel permeation chromatography to determine the most probable chain-length distributions and relative amounts of polymer produced at each site type. We validate the model using plant data from commercial slurry HDPE process in Arak Petrochemical Complex( ARPC). Significantly, the model contains a single set of kinetic and thermodynamic parameters that accurately predicts the polymer production rate, molecular weight, and polydispersity index.