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Distillation Design And Control Using Aspen Simulation

Author: William L. Luyben
Publisher: John Wiley & Sons
ISBN: 1118510097
Size: 64.85 MB
Format: PDF
View: 7198
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The new edition of this book greatly updates and expands the previous edition. It boasts new chapters on the divided wall column and carbon dioxide capture from stack gas, revises the design and control of distillation systems, and explains the use of dynamic simulation to study safety issues in the event of operating failures. Using Aspen Plus to develop rigorous simulations of single distillation columns and sequences of columns, the book considers the economics of capital investment and energy costs to create an optimal system for separation methods in the chemical and petroleum industries.

Reactive Distillation Design And Control

Author: William L. Luyben
Publisher: John Wiley & Sons
ISBN: 0470377798
Size: 13.58 MB
Format: PDF, Kindle
View: 1115
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After an overview of the fundamentals, limitations, and scope of reactive distillation, this book uses rigorous models for steady-state design and dynamic analysis of different types of reactive distillation columns and quantitatively compares the economics of reactive distillation columns with conventional multi-unit processes. It goes beyond traditional steady-state design that primarily considers the capital investment and energy costs when analyzing the control structure and the dynamic robustness of disturbances, and discusses how to maximize the economic and environmental benefits of reactive distillation technology.

Chemical Reactor Design And Control

Author: William L. Luyben
Publisher: John Wiley & Sons
ISBN: 0470134909
Size: 37.38 MB
Format: PDF, ePub
View: 7430
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Chemical Reactor Design and Control uses process simulators like Matlab®, Aspen Plus, and Aspen Dynamics to study the design of chemical reactors and their dynamic control. There are numerous books that focus on steady-state reactor design. There are no books that consider practical control systems for real industrial reactors. This unique reference addresses the simultaneous design and control of chemical reactors. After a discussion of reactor basics, it: Covers three types of classical reactors: continuous stirred tank (CSTR), batch, and tubular plug flow Emphasizes temperature control and the critical impact of steady-state design on the dynamics and stability of reactors Covers chemical reactors and control problems in a plantwide environment Incorporates numerous tables and shows step-by-step calculations with equations Discusses how to use process simulators to address diverse issues and types of operations This is a practical reference for chemical engineering professionals in the process industries, professionals who work with chemical reactors, and students in undergraduate and graduate reactor design, process control, and plant design courses.

Advanced Distillation Technologies

Author: Anton A. Kiss
Publisher: John Wiley & Sons
ISBN: 1118544811
Size: 52.27 MB
Format: PDF, Mobi
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Distillation has historically been the main method for separating mixtures in the chemical process industry. However, despite the flexibility and widespread use of distillation processes, they still remain extremely energy inefficient. Increased optimization and novel distillation concepts can deliver substantial benefits, not just in terms of significantly lower energy use, but also in reducing capital investment and improving eco-efficiency. While likely to remain the separation technology of choice for the next few decades, there is no doubt that distillation technologies need to make radical changes in order to meet the demands of the energy-conscious society. Advanced Distillation Technologies: Design, Control and Applications gives a deep and broad insight into integrated separations using non-conventional arrangements, including both current and upcoming process intensification technologies. It includes: Key concepts in distillation technology Principles of design, control, sizing and economics of distillation Dividing-wall column (DWC) – design, configurations, optimal operation and energy efficient and advanced control DWC applications in ternary separations, azeotropic, extractive and reactive distillation Heat integrated distillation column (HIDiC) – design, equipment and configurations Heat-pump assisted applications (MVR, TVR, AHP, CHRP, TAHP and others) Cyclic distillation technology – concepts, modeling approach, design and control issues Reactive distillation – fundamentals, equipment, applications, feasibility scheme Results of rigorous simulations in Mathworks Matlab & Simulink, Aspen Plus, Dynamics and Custom Modeler Containing abundant examples and industrial case studies, this is a unique resource that tackles the most advanced distillation technologies – all the way from the conceptual design to practical implementation. The author of Advanced Distillation Technologies, Dr. Ir. Anton A. Kiss, has been awarded the Hoogewerff Jongerenprijs 2013. Find out more (website in Dutch)...

Advanced Process Control

Author: Rainer Dittmar
Publisher: Walter de Gruyter GmbH & Co KG
ISBN: 3110497239
Size: 78.40 MB
Format: PDF, Docs
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Advanced Process Control spielt in der Prozessführung eine große Rolle für den wirtschaftlichen Betrieb verfahrenstechnischer Produktionsanlagen. Neben der Optimierung von PID-Basisregelungen und dem Regelgüte-Management werden Fragen der Modellbildung, vermaschte Regelungsstrukturen, die Entwicklung von Softsensoren zur fortlaufenden Berechnung schwer messbarer Qualitätskenngrößen und modellbasierte prädiktive Mehrgrößenregelungen behandelt.

Process Simulation And Control Using Aspentm

Author: AMIYA K. JANA
Publisher: PHI Learning Pvt. Ltd.
ISBN: 8120345681
Size: 36.91 MB
Format: PDF, Kindle
View: 4086
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Solving the model structure with a large equation set becomes a challenging task due to the involvement of several complex processes in an industrial plant. To overcome these challenges, various process flow sheet simulators are used. This book, now in its second edition, continues to discuss the simulation, optimization, dynamics and closed-loop control of a wide variety of chemical processes using the most popular commercial flow sheet simulator ASPENTM. A large variety of chemical units including flash drum, continuous stirred tank reactor, plug flow reactor, petroleum refining column, heat exchanger, absorption tower, reactive distillation, distillation train, and monomer production unit are thoroughly explained. The book acquaints the students with the simulation of large chemical plants with several single process units. With the addition of the new sections, additional information and plenty of illustrations and exercises, this text should prove extremely useful for the students. Designed for the students of chemical engineering at the senior under-graduate and postgraduate level, this book will also be helpful to research scientists and practising engineers as a handy guide to simulation of chemical processes. NEW TO THIS EDITION : Section 1.3 on Stepwise Aspen Plus Simulation of Flash Drums is thoroughly updated (Chapter 1) Section 3.2 on Aspen Plus Simulation of the Binary Distillation Columns is updated, a new section on Simulation of a Reactive Distillation Column is added (Section 3.6), and a new topic on Column Sizing is introduced (Chapter 3) A new section on Aspen Simulation of a Petlyuk Column with Streams Recycling is included (Chapter 4)

Design And Control Of Distillation Systems For Separating Azeotropes

Author: William L. Luyben
Publisher: John Wiley & Sons
ISBN: 1118209834
Size: 70.94 MB
Format: PDF, ePub, Mobi
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An azeotrope is a mixture of two or more compounds that cannot be separated or changed by simple distillation. This book addresses an important issue in the energy crisis: the distillation of azeotropes to improve the processing of biofuels. It describes azeotropic systems in a comprehensive, readable form, with updates on recent developments in vapor-liquid and liquid-liquid-vapor equilibrium, simulation tools, and specific examples covering the major processing options available. The text also presents methods for achieving optimum economic design and control structures, and demonstrates trade-offs between energy savings and controllability (product quality variability).

A Precut Column Design And Control Using Aspen

Author: Nor Syazwani Sukri
Publisher:
ISBN:
Size: 40.46 MB
Format: PDF, ePub, Mobi
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A pre-cut column from the Palm Oil Fractionation Plant is one approach to the distillation of fatty acids. This research aim to develop dynamic Pre Cut Column model using ASPEN and incorporate control system into distillation column model. The scope of this study is to learn how to use dynamic simulators by simulating Pre Cut Column in steady-state condition and moving to a dynamic simulation, then applying PID (proportional-integral-derivative) control system as an effective control system for continuous processes. For designing the precut column, the method that must be concerned are specifying chemical components and physical properties, specifying stream properties and specifying equipment parameters before running the simulation. PID controllers are the controller of choice for controlling the precut column because PID system is a balancing act with all terms interacting. Integral feedback Element (I) is added to the proportional element to provide a means for eliminating a changing offset in a non linear system and to slow down the reaction to allow for the time delays in the system. Derivative feedback element (D) is added to provide a means of reducing sudden changes in the output and will provide a faster response to step functions and transients. The result was in steady state simulation of precut column and the parameters of controllers were identified from dynamic responses. Dynamic simulation has become increasingly important as processes become more complex and are designed and operated closer to constraints.-Author.

A Simulation Study On Model Predictive Control Application For Depropanizer Using Aspen Hysys

Author: Farah Fatihah Mohd Azhari
Publisher:
ISBN:
Size: 24.80 MB
Format: PDF, ePub
View: 7469
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A model predictive control strategy was proposed for control problem in a distillation column. The aim was to demonstrate process models of depropanizer from step test data and to design an advanced process control (APC) scheme to replace conventional controller for distillation column. The simulation study was conducted using ASPEN HYSYS. In order to achieve the objectives, data was collected from process of depropanizer that used proportional integral derivative controller (PID) controller and the step test was run. Model predictive control (MPC) action was calculated using system identification techniques in MATLAB and process model was obtained. MPC was applied and performance of PID and MPC was compared using set point tracking.The results confirmed the potentials of the proposed strategy. Process model 2x2 constrained MPC was develop in this study. Based on the comparison of the two control methods, results presented prove that MPC can replace conventional controller, PID controller for a distillation column control. MPC also shows greater performances than PID in terms of set point tracking. Hence, MPC controller offers better control performances than PID controller, especially in multivariable processes.