文献类型：期刊文献

英文题名：Simulation of the Evaporation Tube Banks in the Convection Section of a Steam Cracking Furnace Using an Evaporation Model

作者：Yuan, Benfeng;Zhang, Yu;Peng, Xin;Du, Wenli;Hu, Guihua[1];Qian, Feng[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China; East China Univ Sci & Technol, Key Lab Adv Control & Optimizat Chem Proc, Minist Educ, Shanghai 200237, Peoples R China

年份：2017

卷号：56

期号：38

起止页码：10813

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20174104244598);WOS:【SCI-EXPANDED(收录号:WOS:000412043400026)】；

基金：This work was supported by the National Natural Science Foundation of China (61333010, 61590923, 61422303).

语种：英文

外文关键词：Phase equilibria - Distillation - Evaporation - Heat transfer - Steam cracking - Cracks - Naphthas

摘要：Simulation of the evaporation process of a naphtha feedstock in the convection section of a steam cracking furnace is reported in this article. A two-step evaporation model was developed to determine component changes in the vapor and liquid phases. First, a feedstock-simplifying method, based on the work of Eckert and Vanek (Comput. Chem. Eng. 2005, 30, 343-356), was developed in which the original hydrocarbon mixture is represented by a system of real components. Second, the component distribution was determined by vapor liquid equilibrium theory, using an activity coefficient method. The group contribution method (GCM) was employed to calculate the interaction parameters in the activity coefficient method. Using a mechanistic heat-transfer method, a comparison was made between the evaporation model developed in this work and a simplified evaporation model. The simulation results are in good agreement with industrial data. Some parameter profiles for the heat-transfer process are provided, as are the flow patterns of the naphtha feedstock.