Reduced Order Methodologies for the Control of Particle Size Distribution in Emulsion Polymerization

Reduced Order Methodologies for the Control of Particle Size Distribution in Emulsion Polymerization
Author: Mustafa Tekin Dokucu
Publisher: ProQuest
Total Pages: 354
Release: 2007
Genre:
ISBN: 9780549362760

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Emulsion polymerization has significant advantages over bulk and solution polymerization processes. These advantages result mostly from the multiphase and compartmentalized nature of the emulsion polymerization, delivering a high versatility to product qualities but adding to the complexity of the process. The control of the full particle-size distribution (PSD) in emulsion polymerization is vital for industrial applications where the target distributions are usually complex and/or multimodal. Despite the strong need, control of the full PSD presents a challenging task mainly due to the complexity of emulsion polymerization and the lack of adequate on-line measurement instrumentation. In this work, in-batch and batch-to-batch control strategies are developed for the regulation of the full PSD in semibatch emulsion copolymerization of Vinyl Acetate/Butyl Acrylate with nonionic surfactants and a redox initiator pair. These strategies are also applicable for regulation of distributions in other particulate systems governed by population balances.

21st European Symposium on Computer Aided Process Engineering

21st European Symposium on Computer Aided Process Engineering
Author:
Publisher: Elsevier
Total Pages: 2086
Release: 2011-06-10
Genre: Technology & Engineering
ISBN: 0444538968

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The European Symposium on Computer Aided Process Engineering (ESCAPE) series presents the latest innovations and achievements of leading professionals from the industrial and academic communities. The ESCAPE series serves as a forum for engineers, scientists, researchers, managers and students to present and discuss progress being made in the area of computer aided process engineering (CAPE). European industries large and small are bringing innovations into our lives, whether in the form of new technologies to address environmental problems, new products to make our homes more comfortable and energy efficient or new therapies to improve the health and well being of European citizens. Moreover, the European Industry needs to undertake research and technological initiatives in response to humanity's "Grand Challenges," described in the declaration of Lund, namely, Global Warming, Tightening Supplies of Energy, Water and Food, Ageing Societies, Public Health, Pandemics and Security. Thus, the Technical Theme of ESCAPE 21 will be "Process Systems Approaches for Addressing Grand Challenges in Energy, Environment, Health, Bioprocessing & Nanotechnologies."

Advances in Polymer Reaction Engineering

Advances in Polymer Reaction Engineering
Author:
Publisher: Academic Press
Total Pages: 350
Release: 2020-10-31
Genre: Technology & Engineering
ISBN: 0128215224

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Advances in Polymer Reaction Engineering, Volume 56 in the Advances in Chemical Engineering series is aimed at reporting the latest advances in the field of polymer synthesis. Chapters in this new release include Polymer reaction engineering and composition control in free radical copolymers, Reactor control and on-line process monitoring in free radical emulsion polymerization, Exploiting pulsed laser polymerization to retrieve intrinsic kinetic parameters in radical polymerization, 3D printing in chemical engineering, Renewable source monomers in waterborne polymer dispersions, Importance of models and digitalization in Polymer Reaction Engineering, Recent Advances in Modelling of Radical Polymerization, and more. Covers recent advances in the control and monitoring of polymerization processes and in reactor configurations Provides modelling of polymerization reactions and up-to-date approaches to estimate reaction rate constants Includes authoritative opinions from experts in academia and industry

23 European Symposium on Computer Aided Process Engineering

23 European Symposium on Computer Aided Process Engineering
Author: Alireza Hosseini
Publisher: Elsevier Inc. Chapters
Total Pages: 17
Release: 2013-06-10
Genre: Science
ISBN: 0128086300

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In this paper, a new control strategy that employs a mid-course correction to control the particle size distribution in emulsion polymerization is developed. In this approach, online and infrequent measurements are used to obtain the states of the system at the mid-course of the process. Then an optimization is performed to obtain the optimal trajectory of the input from the mid-course up to the end of the process. For this optimization, a hybrid model is used. This hybrid model consists of the Fokker-Planck particle size distribution model of emulsion polymerization and a data-driven component which corrects the predictions of the Fokker-Planck model based upon the estimated states of the system at the mid-course of the process.

The Control Handbook

The Control Handbook
Author: William S. Levine
Publisher: CRC Press
Total Pages: 944
Release: 2018-10-08
Genre: Technology & Engineering
ISBN: 1420073613

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At publication, The Control Handbook immediately became the definitive resource that engineers working with modern control systems required. Among its many accolades, that first edition was cited by the AAP as the Best Engineering Handbook of 1996. Now, 15 years later, William Levine has once again compiled the most comprehensive and authoritative resource on control engineering. He has fully reorganized the text to reflect the technical advances achieved since the last edition and has expanded its contents to include the multidisciplinary perspective that is making control engineering a critical component in so many fields. Now expanded from one to three volumes, The Control Handbook, Second Edition organizes cutting-edge contributions from more than 200 leading experts. The second volume, Control System Applications, includes 35 entirely new applications organized by subject area. Covering the design and use of control systems, this volume includes applications for: Automobiles, including PEM fuel cells Aerospace Industrial control of machines and processes Biomedical uses, including robotic surgery and drug discovery and development Electronics and communication networks Other applications are included in a section that reflects the multidisciplinary nature of control system work. These include applications for the construction of financial portfolios, earthquake response control for civil structures, quantum estimation and control, and the modeling and control of air conditioning and refrigeration systems. As with the first edition, the new edition not only stands as a record of accomplishment in control engineering but provides researchers with the means to make further advances. Progressively organized, the other two volumes in the set include: Control System Fundamentals Control System Advanced Methods

Model Reduction and Coarse-Graining Approaches for Multiscale Phenomena

Model Reduction and Coarse-Graining Approaches for Multiscale Phenomena
Author: Alexander N. Gorban
Publisher: Springer Science & Business Media
Total Pages: 554
Release: 2006-09-22
Genre: Science
ISBN: 3540358889

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Model reduction and coarse-graining are important in many areas of science and engineering. How does a system with many degrees of freedom become one with fewer? How can a reversible micro-description be adapted to the dissipative macroscopic model? These crucial questions, as well as many other related problems, are discussed in this book. All contributions are by experts whose specialities span a wide range of fields within science and engineering.