Modelling and Dynamics of an Extractive Distillation Column
Modelling and Dynamics of an Extractive Distillation Column
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萃取精馏塔的建模和动力学
DOI：
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发表时间：
1983
期刊：
影响因子：
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通讯作者：
P. A. Taylor
中科院分区：
文献类型：
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作者：
S. Kumar;J. Wright;P. A. Taylor
大部分已发表的研究文献的精馏塔的动力学和控制一直集中在二元系统或多组分系统，其中的关键组成部分是用来定义的操作。本文介绍了以水为溶剂的萃取精馏系统分离丙酮和甲醇的非线性质量平衡和能量平衡模型及实验结果。该系统包括具有13个塔板的15 cm直径的泡罩塔，并且溶剂用于破坏丙酮-甲醇共沸物。拟合的传递函数模型与描述系统对入口进料速率和组成变化的瞬态响应的仿真模型进行了比较。该系统由VAX 11/750过程计算机控制，带有一个带有温度和成分在线测量的分布式前端。
Much of the published research literature on distillation column dynamics and control has been focussed on binary systems or on multicomponent systems in which key components are used to define the operations. This paper presents both non-linear mass and energy balance models and experimental results for an extractive distillation system separating acetone from methanol using a water solvent. The system comprises a 15 cm diameter bubblecap column with 13 trays and the solvent is used to break the acetone-methanol azeotrope. Fitted transfer function models are compared with simulation models describing the transient responses of the system to changes in the inlet feedrates and composition. The system is controlled by a VAX 11/750 process computer with a DPM-23 distributed front-end using on-line temperature and composition measurements.