Title | Synthesis of Operable Process Intensification Systems - Steady-State Design with Safety and Operability Considerations |
Publication Type | Journal Article |
Year of Publication | 2019 |
Authors | Tian, Y, Pistikopoulos, EN |
Journal | Industrial and Engineering Chemistry Research |
Volume | 58 |
Pagination | 6049-6068 |
Date Published | apr |
ISSN | 15205045 |
Keywords | 9.3, BP5Q4, Distillation, Liquids, Modeling and Simulation, optimization, Physical and chemical processes, Project 9.3, Separation science |
Abstract | In this work, we present an integrated approach to synthesize process intensification systems with guaranteed flexibility and safety performances. The synthesis of intensified equipment/flowsheets is addressed through the Generalized Modular Representation Framework (GMF), which utilizes an aggregation of multifunctional mass/heat exchange modules to represent chemical processes. Thus, the optimal design options are investigated as mass- and heat-transfer opportunities using superstructure-based optimization techniques without a prepostulation of plausible configurations. To ensure that the designs can be operated under a specified range of uncertain parameters, a multiperiod GMF representation is developed based on the critical operating conditions identified by flexibility test. Risk assessment, accounting for equipment failure frequency and consequence severity, is incorporated as a constraint into this synthesis model to derive inherently safer designs. The resulting safely operable intensified systems, which are represented via phenomenological modules, are then identified as corresponding equipment-based flowsheets and validated with steady-state simulation. We demonstrate the proposed approach through a case study for the production of methyl tert-butyl ether. The results indicate that safety and operability considerations can result in significant changes in the structural and operating parameters of the optimal intensified design configuration. |
URL | https://doi.org/10.1021/acs.iecr.8b04389 |
DOI | 10.1021/acs.iecr.8b04389 |