Comparison of Alternative Control Structures for an Ideal Two-Product Reactive Distillation Column
Comparison of Alternative Control Structures for an Ideal Two-Product Reactive Distillation Column
复制标题
DOI：
10.1021/ie990886j
复制
发表时间：
2000-07
影响因子：
4.2
通讯作者：
Muhammad A. Al-Arfaj;W. Luyben
中科院分区：
文献类型：
--
作者：
Muhammad A. Al-Arfaj;W. Luyben
虽然反应精馏塔的稳态设计和开环动力学已经在许多论文中进行了探讨，很少有论文涉及闭环控制。大多数这些控制文件考虑反应精馏塔，其中只有一个产品，有时假定过量的反应物之一。本文探讨了一个反应精馏塔的闭环控制，其中两个产品在一个单一的塔生产和化学计量的新鲜进料的需要。可逆反应为A + B C + B。相对挥发分有利于反应蒸馏;即，反应物是轻质产物C和重质产物D之间的中沸点物。简单的理想的物理性质，动力学和汽液平衡假设，使反应蒸馏的基本控制问题可以探索，而不会被一个特定的化学系统的复杂性。六种可供选择的控制结构进行了评估，通过严格的…
Although steady-state design and open-loop dynamics of reactive distillation columns have been explored in many papers, very few papers have dealt with closed-loop control. Most of these control papers consider reactive distillation columns in which there is only one product, and an excess of one of the reactants is sometimes assumed. This paper explores the closed-loop control of a reactive distillation column in which two products are produced in a single column and stoichiometric amounts of fresh feeds are desired. The reversible reaction is A + B ⇌ C + B. The relative volatilities are favorable for reactive distillation; i.e., the reactants are intermediate boilers between the light product C and the heavy product D. Simple ideal physical properties, kinetics, and vapor−liquid equilibrium are assumed so that the basic control issues of reactive distillation can be explored without being clouded by complexities of a specific chemical system. Six alternative control structures are evaluated via rigorous...