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Plantwide Control Structure Design For Butane Isomerization Process
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Book Synopsis PLANTWIDE CONTROL STRUCTURE DESIGN FOR BUTANE ISOMERIZATION PROCESS by : Kitt Kijnithikul
Download or read book PLANTWIDE CONTROL STRUCTURE DESIGN FOR BUTANE ISOMERIZATION PROCESS written by Kitt Kijnithikul and published by . This book was released on 2014 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work describes the application of the plantwide control design procedure of Wongsri (Wongsri, 2015) and the butane isomerization process. The significance of the procedure is the use of quantifiers and their handlers to design plant level quantifier (inventory) control to stabilize the material flow. Next to maintain the quality of the products, the material and heat disturbance management are used to design for plant level disturbance rejection loops for dynamic efficiency. The column control loops are designed to shift plus and minus disturbance in the desired direction. Then the unit level loop design is carried out. The plant equipped with this designed control structure is called a Fixture Plant. The new design is compared with Luyben's design.
Book Synopsis 21st European Symposium on Computer Aided Process Engineering by :
Download or read book 21st European Symposium on Computer Aided Process Engineering written by and published by Elsevier. This book was released on 2011-06-10 with total page 2086 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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."
Book Synopsis Control Structures Design Applied to Alkylation Process Plantwide Control by :
Download or read book Control Structures Design Applied to Alkylation Process Plantwide Control written by and published by . This book was released on 2011 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Design a process control structure for a complex process, such as the process having material or energy recycle, is a complicate task. The design control loop would effect the operation significantly. The study is using plantwide control strategies for designing control structure of Isobutane process control. This structure process design is to achieve the efficiency in control and reduce disturbances in process by using the new process structure design by Wongsri (2009) compare to the basic heuristic structure design by Luben (2002). Disturbances are set up by two categories; flow rate of substances and temperature changed in fresh feed. The result shows that control structure designs based on Wongsri heuristic are better performance than Luben in both sustain in quality and minimize the power efficiency. Evaluate such simulation by HYSYS commercial software.
Book Synopsis Plantwide Control Structures Design of Monoisopropylamine Process by : Chanisa Chumna
Download or read book Plantwide Control Structures Design of Monoisopropylamine Process written by Chanisa Chumna and published by . This book was released on 2012 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this work, plantwide control structure design procedure of Wongsri (2012) is presented and applied to the monoisopropylamine process. The plant consists of a tubular reactor and three distillation columns. There are two recycle streams: gas and liquid. The raw materials are isopropyl alcohol and ammonia which are converted to MIPA, DIPA, and water. The by-product DIPA is recycled to react with ammonia to form MIPA. An excess of ammonia in the reactor inhibits the DIPA reaction, so ammonia is also recycled. The plant with control structure designed called the fixture plant. The raw materials entered the process is fixed and the products are regulated according to their accumulation. The recycle flowrate of DIPA is adjusted by its quantifier. The temperature loops are designed to reject the thermal disturbance. The first distillation column is controlled using a single temperature and a reflux-to-feed ratio control structure. The second distillation column is controlled using a single temperature and either a reflux-to-feed ratio or reflux ratio control structure. The third column has three alterative control structures which are the same as the second column and dual control structure ratio (one temperature and one composition).
Book Synopsis Plantwide Control Structures Design for Butyl Acetate Process by : Oracha Rattananipon
Download or read book Plantwide Control Structures Design for Butyl Acetate Process written by Oracha Rattananipon and published by . This book was released on 2011 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: A structure of most industrial processes, including many different unit operations, several recycle streams and energy integration, is a complex flowsheet. Therefore plantwide control structure design is an important way to control processes which become more complex so that processes are designed and operated closer to constraints. This research is design of plantwide control structures for butyl acetate process, which consist of a reactor, three distillation columns and two recycle streams. It can be produced by the reaction of methyl acetate with butanol in a reversible, liquid-phase, mildly exothermic reaction. Methanol is the second product. The objective of this research is selection of controlled variables so that finding which variables that should be controlled system for quickly responding to disturbances and adjusting self to steady state while minimizing the deviation of the product quality. Plantwide control procedure of Wongsri(2012) is chosen for design the new control structures in order to develop control loops to achieve the required objectives. Steady state designs were performed in commercial process simulator and evaluate the performance using integrated absolute error (IAE) of the designed control structures.
Book Synopsis Design of Plantwide Control Structure by :
Download or read book Design of Plantwide Control Structure written by and published by . This book was released on 2009 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plantwide Control Structure Design of the Methoxy-methyl-heptane Process by :
Download or read book Plantwide Control Structure Design of the Methoxy-methyl-heptane Process written by and published by . This book was released on 2012 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The design of plantwide control structure for the methoxy-methyl-heptane process using Wongsri's design procedure is studied. The eight stepsof the design procedure focus on plantwide level designwhich is establishing a fixture plantand thermal and material disturbance managements for quality control. The process involves the reaction of methanol with 2-methyl-1-heptene to form 2-methoxy-2-methylheptane. The flowsheet features a continuous stirred tank reactor, three distillation columns, and one recycle stream. The combined feed of fresh and recycled 2-methyl-1-heptene is regulated and is ratioed to the fresh methanol. 2-methyl-1-heptene disturbance is pushed away via the distillate of the second column and recycled to maintain 2-methoxy-2-methylheptane purity in the third column. All components are handled at their identified quantifiers. The designed plantwide control structure performance is compared with the Luyben's design.
Book Synopsis Plantwide Control Structure Design for Cumene Process by : Saiyawit Korprasert
Download or read book Plantwide Control Structure Design for Cumene Process written by Saiyawit Korprasert and published by . This book was released on 2013 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plantwide control structure design relies on two basic principles, namely, maintaining operating conditions at designed values and quick rejecting disturbance and/or directing disturbances to appropriate paths. The purpose of this research is to illustrate the application of the plantwide control structure design procedure of Wongsri (2012) for cumene process. The design procedure consists of 5 stages with 8 steps which emphasis on the establishment of a fixture plant by regulating material component flow rates using their quantifiers and handlers, and proper disturbance management. The new control structure designs are evaluated using Aspen HYSYS dynamic simulator and compared their performance with the selected base case (W. L. Luyben, Design and Control of the Cumene Process, Ind. Eng. Chem. Res., Vol. 49, No. 2, 2010: 719-734). Two new design structures (CS2 and CS3) give better performance than the base case because of their good maintaining plant conditions and better disturbance handlings.
Book Synopsis Plantwide Control Structure Design for Ammonia Production Process by :
Download or read book Plantwide Control Structure Design for Ammonia Production Process written by and published by . This book was released on 2012 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis presents the application of the plantwide control design procedure of Wongsri (2012) to the ammonia production process. Two new control structures obtained are evaluated and compared with the control structure of Skogestad (2008).The disturbances used in the evaluation are gas feed flowrate, feed temperature, and methane composition in feed changes. The new control structure, CS2, resulted in good dynamic performance for the feed flowrate and feed temperature changes. For methane composition in feed change, all control structures give comparable good performances.
Book Synopsis A Systematic Approach to the Design of Plant-wide Control Strategies for Chemical Processes by : Christine Sau Ting Ng
Download or read book A Systematic Approach to the Design of Plant-wide Control Strategies for Chemical Processes written by Christine Sau Ting Ng and published by . This book was released on 1997 with total page 505 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Plantwide Control Structures Design of a Methyl Amines Process by : Pantita Laklert
Download or read book Plantwide Control Structures Design of a Methyl Amines Process written by Pantita Laklert and published by . This book was released on 2011 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: In general, the production process in all plants do not have single process or have only single unit operation separated from other process but they have several operation units. And due to the restriction of the environment, safety and operating condition, it is very necessary to have the control system to control the condition and compensate for any deviation occurred. The methyl amines process is a complex chemical process with reaction and separation sections connected by several recycle streams. There are three consecutive reversible reactions that produce three different chemical components. In this thesis, the plantwide control strategy is considered for the methyl amines process. Fixture point theorem is applied to the plantwide control structures design for selecting appropriated set of controlled variables. A commercial process simulation software achieves the dynamics simulation of this research, both of steady-state and dynamics conditions.
Book Synopsis Plantwide Control Structure Design for Acetone Process Via Dehydrogenation of 2-propanol by :
Download or read book Plantwide Control Structure Design for Acetone Process Via Dehydrogenation of 2-propanol written by and published by . This book was released on 2011 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most chemical plants consist of a number of processing units to ensure its safety and stability of process operations. Processes involved recycling of material and energy are much more complex due to intensive interactions among units. These lead to an extremely complex dynamic behavior resulting in consistency of undesired products. However, the requirements of market, social and environment demand constant product quality in order to manage cost, energy and raw materials efficiently. To achieve all objectives, therefore, plantwide control plays an important role in the improvement of the modern chemical processes. Acetone is a common chemical product which has been widely used as a solvent and as a reactant for many chemical processes. One of the syntheses of acetone is dehydrogenation of 2-propanol. In this research, a control structure of the acetone process is designed by using the heuristics procedure of Wongsri (2012). The procedure takes the fixture plant into consideration to provide a reasonable control structure which is straightforward to understand. The control structure is then designed at steady state and dynamic conditions through a commercial process dynamics simulator. Consequently, the control structure is well handled with both material and thermal disturbances.
Book Synopsis Plantwide Control Structure Design of Hydrodealkylation Process by : Teerapong Juncharoenwongsa
Download or read book Plantwide Control Structure Design of Hydrodealkylation Process written by Teerapong Juncharoenwongsa and published by . This book was released on 2013 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: กระบวนการไฮโดรดีอัลคิเลชันประกอบด้วยแผนผังกระบวนการที่มีความซับซ้อนกับสายป้อนกลับมวลสารและพลังงานและหน่อยปฏิบัติการที่มีความแตกต่างกันจํานวนมาก ส่งผลให้พฤติกรรมไม่เชิงเส้นของกระบวนการปิโตรเคมีนี้มีความซับซ้อนอย่างมาก ดังนั้นโครงสร้างการควบคุมแบบทั้งกระบวนการที่มีประสิทธิภาพจะเห็นได้ชัดเจนว่าเป็นสิ่งที่สําคัญอย่างมาก ในการทํางานในปัจจุบันนี้ วิธีการออกแบบโครงสร้างการควบคุมแบบทั้งโรงงานของวงศ์ศรีถูกประยุกต์ใช้กับกระบวนการไฮโดรดีอัลคิเลชัน ซึ่งวิธีการออกแบบประกอบด้วย 8 ขั้นตอน ใน 5 ระดับ ซึ่งให้ความสนใจในเรื่องของการทําให้กระบวนการอยู่ในสภาวะคงตัวโดยการปรับอัตราการไหลของมวลสารตามการสะสมของมวลสารด้วยตัวจัดการตามเส้นทางของแต่ละสารและการใช้หลักการจัดการการรบกวน การออกแบบแสดงให้เห็นถึงความชัดเจนและการให้คําแนะนําวิธีการออกแบบโครงสร้างการควบคุมแบบทั้งกระบวนการ ประสิทธิภาพของการออกแบบโครงสร้างการควบคุมถูกประเมินโดยใช้การจําลองเชิงพลวัตที่มีความเข้มงวดและเปรียบเทียบกับโครงสร้างของลูเบน ผลคือประสิทธิภาพของโครงสร้างการควบคุมใหม่ดีกว่าโครงสร้างการควบคุมของลูเบนในเรื่องของการจัดการการรบกวน ความเร็วในการตอบสนอง และการรักษาความบริสุทธิ์ของผลิตภัณฑ์.
Book Synopsis Plantwide Control by : Gade Pandu Rangaiah
Download or read book Plantwide Control written by Gade Pandu Rangaiah and published by John Wiley & Sons. This book was released on 2012-01-09 with total page 497 pages. Available in PDF, EPUB and Kindle. Book excerpt: The use of control systems is necessary for safe and optimal operation of industrial processes in the presence of inevitable disturbances and uncertainties. Plant-wide control (PWC) involves the systems and strategies required to control an entire chemical plant consisting of many interacting unit operations. Over the past 30 years, many tools and methodologies have been developed to accommodate increasingly larger and more complex plants. This book provides a state-of-the-art of techniques for the design and evaluation of PWC systems. Various applications taken from chemical, petrochemical, biofuels and mineral processing industries are used to illustrate the use of these approaches. This book contains 20 chapters organized in the following sections: Overview and Industrial Perspective Tools and Heuristics Methodologies Applications Emerging Topics With contributions from the leading researchers and industrial practitioners on PWC design, this book is key reading for researchers, postgraduate students, and process control engineers interested in PWC.
Book Synopsis Design of Plantwide Control Systems by : Rama V. Mahajanam
Download or read book Design of Plantwide Control Systems written by Rama V. Mahajanam and published by . This book was released on 2001 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Process and Chemical Engineering by :
Download or read book Process and Chemical Engineering written by and published by . This book was released on 1994 with total page 786 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis of the Plantwide Control Structure by :
Download or read book Synthesis of the Plantwide Control Structure written by and published by . This book was released on 2008 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt: The combined mathematic and heuristic based approach is proposed for establishing the plantwide control structure in this dissertation. The proposed approach takes advantages of both heuristic based and mathematic based approaches to develop the appropriate plantwide control structures. In heuristic part, sets of controlled variables and manipulated variables are selected followed by establishing of the obvious control loops. In mathematic part, the dynamic performance-based optimization is proposed for establishing the plantwide control structures. The optimization problem is formulated as a mixed integer nonlinear programming (MINLP). The objective function is presented as an integral of the time-weighted absolute error (ITAE) of all measurements and manipulated variables in the face of disturbances. A discrete state-space model is used as the process model in the optimization problem. The proposed approach is investigated on the Tennessee Eastman (TE) process. The obtained plantwide control structures are compared with the earlier work given by Luyben et al. (1999). In dynamic simulation, the performance of the plantwide control structures is evaluated in the face of disturbances and setpoint changing. The simulation results show that the obtained plantwide control structures give the appropriate responses compares with those of Luyben et al. (1999).
