Download or read book Dynamics and Control of a Heat Integrated Distillation Column with Side Heat Exchanges written by Sadanand R. Patil and published by . This book was released on 1981 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the alternative energy-saving methods in a conventional distillation process is the use of side (intermediate) reboiler and/or condenser for a portion of the overall heat load. A nonlinear differential equations model was developed to describe the dynamics of a typical binary distillation process with and without the side heat exchangers. Conventional column dynamics can be represented by 2x2 transfer matrices, whereas for a column with side heat exchangers the open-loop and closed-loop dynamics can be expressed in terms of 4x4 transfer matrices. Analysis indicates that decoupling and feedforward control policies may be hard to implement, due to the increased dimensionality. However, simplifications obtained through the selective pairing of the control variables provide the familiar 2x2 matrix treatment. Classical control policy was extended to design different control strategies (feedback and feedback/feedforward) for a column with side heat exchangers. Simulation studies reveal that the control response is better in the case of the modified column. When the side heat exchanger duties were used as feedforward variables with reflux and main boil-up rates as feedback variables, little improvement was observed as compared to the feedback control alone. On the other hand, use of side heat exchanger duties as feedback variables with reflux and main boil-up rates as feedforward variables resulted in unstable operation of the column.
Download or read book Control and Dynamics of Heat integrated Distillation Columns written by Teh-Ping Chiang and published by . This book was released on 1985 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dynamics and Control of Continuous Distillation Units written by O. Rademaker and published by Elsevier Science & Technology. This book was released on 1975 with total page 740 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Study on the Dynamics and Control of High Purity Double effect Distillation Columns written by Abbas Habib Al-Elg and published by . This book was released on 1987 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 23 European Symposium on Computer Aided Process Engineering written by Thomas Bisgaard and published by Elsevier Inc. Chapters. This book was released on 2013-06-10 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: The dynamic effects of diabatization in distillation columns are investigated in simulation emphasizing the heat-integrated distillation column (HIDiC). A generic, dynamic, first-principle model has been formulated, which is flexible enough to describe various diabatic distillation configurations. Dynamic Relative Gain Array and Singular Value Analysis have been applied in a comparative study of a conventional distillation column and a HIDiC. The study showed increased input-output coupling due to diabatization. Feasible SISO control structures for the HIDiC were also found and control-loop feasibility was demonstrated.
Download or read book Development and Dynamic Analysis of an Experimental Heat Integrated Distillation Column written by Gregory Philip Golike and published by . This book was released on 1981 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heat integrated distillation has been studied using an experimental column built for that purpose. Heat integration involves the use of intermediate reboilers and condensers to increase the thermal efficiency of distillation. The intermediate reboiler and condenser systems used in this work were designed so that the experimental column could be operated either as a conventional distillation column (without the intermediate heat exchangers) or as a heat integrated distillation column. Sufficient instrumentation was included in the experimental setup so that liquid temperatures on each tray in the column could be monitored. Pulse disturbances in four system parameters were used to generate dynamic responses for both conventional and heat integrated distillation using the methanol-water binary system. The disturbed parameters include the liquid feed flowrate, the bottom boilup rate, the external liquid reflux rate and the intermediate condensation rate. Based on comparisons of the dynamic responses for the two systems, it is concluded that heat integrated distillation in this case is more restrained in its response to disturbances. This restraint is attributed to a moderating effect provided by the intermediate heat exchangers. The experimental dynamic responses were compared with dynamic responses predicted by a theoretical model. This comparison indicates that the heat losses from the experimental column are substantial and must be reduced in further work on the experimental equipment.
Download or read book Proceedings of the Joint Automatic Control Conference written by and published by . This book was released on 1980 with total page 756 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Distillation Technologies written by Anton A. Kiss and published by John Wiley & Sons. This book was released on 2013-02-26 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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)...
Download or read book Dynamics and Control of Chemical Reactors and Distillation Columns written by C. McGreavy and published by Elsevier. This book was released on 2014-05-23 with total page 343 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents the latest results of both academic and industrial research in the control, modelling and dynamics of two of the most fundamental constituents of all chemical engineering plant. Includes contributions on fixed-bed, gas-phase and tubular reactors, thermal cracking furnaces and distillation columns, related to applications in all major areas of chemical engineering, including petrochemicals and bulk chemical manufacture. Contains 51 papers.
Download or read book Distillation Control written by Cecil L. Smith and published by John Wiley & Sons. This book was released on 2012-05-29 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Learn to Design the Best Control Configuration for Any Distillation Column Today, distillation is by far the most common separation technique used in the chemical and petroleum industries. All distillation columns need to be carefully controlled in order to meet specified production and quality levels. Distillation Control enables readers to do this by approaching the subject from a process to develop, analyze, and troubleshoot all aspects of column controls. Readers are efficiency and effectiveness and minimizing coats. Distillation Control begins with a chapter dedicated to underlying principles, including separation processes, reflux and boilup ratios, and composition dynamics. Next, the author covers such critical topics as: Composition control Pressure control and condensers Reboilers and feed preheaters Application of feedforward Unit optimization Complex towers As readers progress through the text, they’ll discover that the best control configuration for a distillation column is largely determined using steady-state process characteristics. The stage-by-stage separation models that the author sets forth for column design, therefore, provide information that is essential in developing the optimal control configuration. In addition to its clear explanations, Distillation Control is filled with clear diagrams and illustrations that clarify complex concepts and guide readers through multi-step procedures. Engineers as well as other professionals working in process facilities that use distillation to separate materials will fin that this book enables them to implement the latest tested and proven distillation control methods to meet their particular processing needs.
Download or read book Dynamics and Control of Chemical Reactors Distillation Columns and Batch Processes written by and published by . This book was released on 1990 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 335 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS) * at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dissemination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all con cerned if the printing and distribution of the volume were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Cor poration of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 26 (thesis year 1981) a total of 11 ,048 theses titles from 24 Canadian and 21 8 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this important annual reference work. While Volume 26 reports theses submitted in 1981, on occasion, certain univer sities do report theses submitted in previous years but not reported at the time.
Download or read book Distillation Design and Control Using Aspen Simulation written by William L. Luyben and published by John Wiley & Sons. This book was released on 2006-04-20 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: A timely treatment of distillationcombining steady-state designand dynamic controllability As the world continues to seek new sources of energy, the distillation process remains one of the most important separation methods in the chemical, petroleum, and energy industries. And as new renewable sources of energy and chemical feedstocks become more universally utilized, the issues of distillation design and control will remain vital to a future sustainable lifestyle. Distillation Design and Control Using Aspen Simulation introduces the current status and future implications of this vital technology from the dual perspectives of steady-state design and dynamics. Where traditional design texts have focused mainly on the steady-state economic aspects of distillation design, William Luyben also addresses such issues as dynamic performance in the face of disturbances. Utilizing the commercial simulators Aspen Plus and Aspen Dynamics, the text guides future and practicing chemical engineers first in the development of optimal steady-state designs of distillation systems, and then in the development of effective control structures. Unique features of the text include: * In-depth coverage of the dynamics of column design to help develop effective control structures for distillation columns * Development of rigorous simulations of single distillation columns and sequences of columns * Coverage of design and control of petroleum fractionators Encompassing nearly four decades of research and practical developments in this dynamic field, the text represents an important reference for both students and experienced engineers faced with distillation problems.
Download or read book Proceedings written by and published by . This book was released on 1980 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Circular Series written by Oregon State University. Engineering Experiment Station and published by . This book was released on 1981 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Process Dynamics and Control written by Dale E. Seborg and published by John Wiley & Sons. This book was released on 2010-04-12 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: This third edition provides chemical engineers with process control techniques that are used in practice while offering detailed mathematical analysis. Numerous examples and simulations are used to illustrate key theoretical concepts. New exercises are integrated throughout several chapters to reinforce concepts. Up-to-date information is also included on real-time optimization and model predictive control to highlight the significant impact these techniques have on industrial practice. And chemical engineers will find two new chapters on biosystems control to gain the latest perspective in the field.
Download or read book Distillation Control written by F. Greg Shinskey and published by McGraw-Hill Companies. This book was released on 1977 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:
