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Books > Professional & Technical > Industrial chemistry & manufacturing technologies > Industrial chemistry > General
Shorter reaction times, higher product yields, and enhanced selectivity are some of the advantages microwave heating has over conventional methods, causing its use to transition from a curiosity to mainstream, both in industrial and academic settings. Microwave Heating as a Tool for Sustainable Chemistry showcases the application of microwave heating in a number of areas of preparative chemistry as well as in the biosciences. From organic chemistry to materials and biological applications The book begins with an introduction to microwave heating, the physical concepts behind it, its application in synthetic chemistry, and commercially available microwave equipment. It shows how microwave heating can be used to facilitate the clean and sustainable synthesis of organic compounds. The authors examine microwave heating as a tool for sustainable polymer chemistry, with discussions of the use of alternative solvents and feedstocks, the design of degradable polymeric materials, and recycling polymers. They then discuss the significant contribution made by microwave-promoted synthesis in the drug discovery process, with a focus on how the technology has been used to generate discovery chemistry libraries and as a tool for medicinal chemists. Other topics examined in this application-driven text include the use of microwave heating in the preparation of inorganic and organometallic compounds, in the production of inorganic materials, and in the area of biosciences. Academic and industrial settings The book examines the scale-up of microwave-promoted chemistry and describes the various approaches and the current commercially available microwave reactors available for scale-up. It also discusses microwave heating as a tool for teaching in the undergraduate organic chemistry laboratory. It explores curriculum, the broad range of reactions that can be performed, and the incorporation of green chemistry principles. The author maintains a website with supplemental information.
This book describes crucial aspects related to the additive and subtractive manufacturing of different composites. The first half of this book mainly deals with the various types of composite fabrication methods along with the introduction, features and mechanisms and also the processing of composite materials via additive manufacturing route. Also, the thermal, mechanical, physical and chemical properties relevant to the processing of composite materials are included in the chapters. The second half of this book primarily demonstrates an extensive section on the different types of additive manufacturing processes like selective laser sintering, selective laser melting, stereolithography, fused deposition modeling and material jetting used to fabricate the metals and polymers. Also, the chapters address the complete description of fabrication processes for metal matrix composites and polymer matrix composites. Moreover, the different methods adopted such as short peening, micro-machining, heat-treatment and solution treatment to improve the surface improvement are well discussed. This book gives many helps to researchers and students in the fields of the additive and subtractive manufacturing of different composites.
This manual provides the most important information on successful bonding. Various practical advices and helpful tips are useful for the handling of adhesives. Due to its didactically structured content, the book may also serve as a medium for training courses in bonding engineering. The basics of this innovative joining procedure are described in a practical and easily understandable way suitable for the application in trade and industry.
Environmentally Degradable Materials (EDPs) should replace petroleum-based plastics where recycling is not viable for logistic or labor cost reason. This book discusses the general background of obtaining such systems, compatibilization methodologies, control of the rate of degradation and final products after degradation, life time assessment, toxicological aspects, applications and market aspects. This book is a complete guide to the subject of biodegradable materials based on multi-component polymeric systems, mainly such as hydrogels, and interpenetrating polymeric networks. This book is a complete guide to the subject of biodegradable materials based on multicomponent polymeric systems such as mainly hydrogels, interpenetrating polymeric networks.
Surface and colloid chemistry principles impact many aspects of our daily lives, ranging from the cleaners and cosmetics we use to combustion engines and cement. Exploring the range of this field of study, Surface and Colloid Chemistry provides a detailed analysis of its principles and applications and demonstrates how they relate to natural phenomena and industrial processes. Surface and colloid chemistry at work in nature and industry:
The book begins with an introduction to surfaces and colloids. It describes basic considerations regarding liquids and capillarity, and examines the liquid-solid interface phenomena. It explores the physicochemical properties of surfactants, Langmuir-Blodgett films, adsorption on solid surfaces, and adsorption as it relates to cleaning processes. Then the author examines colloidal systems and thin liquid films before moving on to emulsion science and technology. The final chapter provides examples of applications in science and a range of industries. Examples and Illustrations Integrating real-world examples throughout the text, this volume stimulates readers to consider both fundamental theory and industrial applications. More than 100 figures elucidate the concepts described in the text. Sample questions and answers are provided where appropriate, along with detailed data and discussions. Pertinent references are offered to facilitate further study.
The purpose of this volume is to provide a brief review of the previous work on model reduction and identifi cation of distributed parameter systems (DPS), and develop new spatio-temporal models and their relevant identifi cation approaches. In this book, a systematic overview and classifi cation on the modeling of DPS is presented fi rst, which includes model reduction, parameter estimation and system identifi cation. Next, a class of block-oriented nonlinear systems in traditional lumped parameter systems (LPS) is extended to DPS, which results in the spatio-temporal Wiener and Hammerstein systems and their identifi cation methods. Then, the traditional Volterra model is extended to DPS, which results in the spatio-temporal Volterra model and its identification algorithm. All these methods are based on linear time/space separation. Sometimes, the nonlinear time/space separation can play a better role in modeling of very complex processes. Thus, a nonlinear time/space separation based neural modeling is also presented for a class of DPS with more complicated dynamics. Finally, all these modeling approaches are successfully applied to industrial thermal processes, including a catalytic rod, a packed-bed reactor and a snap curing oven. The work is presented giving a unifi ed view from time/space separation. The book also illustrates applications to thermal processes in the electronics packaging and chemical industry. This volume assumes a basic knowledge about distributed parameter systems, system modeling and identifi cation. It is intended for researchers, graduate students and engineers interested in distributed parameter systems, nonlinear systems, and process modeling and control.
Thermal Barrier Coatings, Second Edition plays a critical role in counteracting the effects of corrosion and degradation of exposed materials in high-temperature environments such as gas turbine and aero-engines. This updated edition reviews recent advances in the processing and performance of thermal barrier coatings, as well as their failure mechanisms. Novel technologies for the manufacturing of thermal barrier coatings (TBCs) such as plasma spray-physical vapor deposition and suspension plasma spray, are covered, as well as severe degradation of TBCs caused by CMAS attack. In addition to discussions of new materials and technologies, an outlook about next generation TBCs, including T/EBCs is discussed. This edition will provide the fundamental science and engineering of thermal barrier coatings for researchers in the field of TBCs, as well as students looking for a tutorial.
Although computer technology has dramatically improved the analysis of complex transport phenomena, the methodology has yet to be effectively integrated into engineering curricula. The huge volume of literature associated with the wide variety of transport processes cannot be appreciated or mastered without using innovative tools to allow comprehension and study of these processes. Connecting basic principles with numerical methodology for solving the conservations laws, Computational Transport Phenomena for Engineering Analyses presents the topic in terms of modern engineering analysis. The book includes a production quality computer source code for expediting and illustrating analyses of mass, momentum, and energy transport. The text covers transport phenomena with examples that extend from basic empirical analyses to complete numerical analyses. It includes a computational transport phenomena (CTP) code written in Fortran and developed and owned by the authors. The code does not require a lease and can run on a PC or a supercomputer. The authors also supply the source code, allowing users to modify the code to serve their particular needs, once they are familiar with the code. Using the CTP code, grid generation and solution procedures are described and visual solution presentations are illustrated thus offering extensive coverage of the methodology for a wide range of applications. The authors illustrate and emphasize that the very general solutions afforded by solving the unsteady, multidimensional transport equations for real multicomponent fluids describe an immense body of physical processes. Bringing together a wealth of professional and instructional experience, this book stresses a problem-solving approach that uses one set of computational and graphical tools to describe all aspects of the analysis. It provides understanding of the principles involved so that code improvements and/or use of commercial codes can be accomplished knowledgeably.
This edited book explores the use of surfactants in upstream exploration and production (E&P). It provides a molecular, mechanistic and application-based approach to the topic, utilising contributions from the leading researchers in the field of organic surfactant chemistry and surfactant chemistry for upstream E&P. The book covers a wide range of problems in enhanced oil recovery and surfactant chemistry which have a large importance in drilling, fracking, hydrate inhibition and conformance. It begins by discussing the fundamentals of surfactants and their synthesis. It then moves on to present their applicability to a variety of situations such as gas injections, shale swelling inhibition, and acid stimulation. This book presents research in an evolving field, making it interesting to academics, postgraduate students, and experts within the field of oil and gas.
This book systematically analyses state-of-the-art technology and research related to desiccant dehumidification. It provides key insights into the current research direction, and presents global research and development interests. It begins by offering a comprehensive review of conventional desiccants and their underlying engineering challenges. Fundamental material characteristic properties and factors critical to the desiccant synthesis are highlighted. The applicability of next-generation advanced materials to address the challenges is documented, and the advantages of desiccant coated heat exchangers are evaluated. Lastly, the potential applications of desiccant dehumidifiers in various energy-connected applications are discussed, and case studies on industrial/building cooling systems are provided. Specifically targeted at HVAC engineers, thermal scientists, energy-engineering researchers, and graduate-level students in the field, the technical content balances fundamental concepts and applications.
This book presents experimental and numerical methods that have been developed during six years of targeted research within the DFG priority program SPP 1740, elucidating the interaction between hydrodynamics, mass transfer and transport as well as chemical reactions in bubbly flows. A special feature of this book is its focus on an interdisciplinary research approach with contributions from chemistry, mathematics and engineering sciences, providing enhanced or novel experimental methods, models and numerical simulations. This book provides fundamental knowledge to students about the current state of knowledge regarding transport processes in reactive bubbly flows as well as to scientists, emphasizing pressing research questions and further current demands for fundamental research. Engineers from the chemical industries will get valuable insights into relevant gas-liquid processes and benefit from recommendations concerning the design of gas-liquid reactors and laboratory experiments for studying the performance of gas-liquid reactions in their own lab.
Discussing the manufacture technology of pressure-sensitive adhesive and products, Volume 2 of the "Handbook of Pressure-Sensitive Adhesives and Products" includes the synthesis of pressure-sensitive raw materials and the design and formulation of pressure-sensitive adhesives. Taking into account monomers, polymerization methods, and polymerization technology, it addresses the offline and inline synthesis of pressure-sensitive raw materials and adhesives. The book describes the main formulation components, along with important chemical and technological additives, and considers the role of formulation as it correlates to formulation technology and equipment. It also highlights the components and build-up of pressure-sensitive products, including the equipment and methods involved in coating, converting, and confectionating.
This book presents selected articles from the Algerian Symposium on Renewable Energy and Materials (ASREM-2020) held at Medea, Algeria. It highlights the latest advances in the field of green energies and material technology with specific accentuation on numerical plans and recent methodologies designed to solve engineering problems. It includes mathematical models and experimental measurements to study different problems in renewable energy and materials characterization, with contributions from experts in both academia and industry, and presents a platform to further collaborations in this important area.
This book investigates in detail the concepts and principles of green chemistry and related methodologies, including green synthesis, green activation methods, green catalysis, green solvents, and green design to achieve process intensification while at the same time ensuring process safety and promoting ecological civilization and environmental protection. Moreover, it incorporates elements of chemical management and chemical education, highlighting chemists' responsibility to protect humankind and foster green and sustainable development in chemistry. Combining Chinese and Belarus wisdom, this book is intended for those working in the chemical industry who are interested in environmental protection and sustainable development, as well as undergraduate and graduate students who are interested in green chemistry and related technologies.
Discussing the definition of pressure sensitivity and characterization of pressure-sensitive behavior, Volume 1 of the "Handbook of Pressure-Sensitive Adhesives and Products" presents the underlying theory behind the main criteria of pressure sensitivity, including Dahlquist criterion, free volume theory, and fibrillation theory, and the pressure-sensitive performance characteristics defined by tack, peel resistance, and shear resistance. It describes the chemical and macromolecular basis of pressure sensitivity as determined by molecular mobility and its parameters and molecular structure and its regulation. The book also addresses the physical and mechanical basis of pressure sensitivity along with the mechanical properties of pressure-sensitive adhesives and products that correlate to their adhesive, converting, and end-use performance characteristics.
Pinch Technology explains the principles of process integration, the use of pinch technology as well as energy recycling in oil, gas, petrochemical and industrial processes. It gives an complete overview of all relevant and similar references in the fi eld of energy recovery in oil, gas and petrochemicals.
Chemical reaction engineering is concerned with the exploitation of chemical reactions on a commercial scale. It's goal is the successful design and operation of chemical reactors. This text emphasizes qualitative arguments, simple design methods, graphical procedures, and frequent comparison of capabilities of the major reactor types. Simple ideas are treated first, and are then extended to the more complex.
This book reviews the latest trends in glycobiotechnology, it offers an authoritative discussion about future directions of glycoengineering, and it provides a comprehensive overview about the current and emerging approaches to identify, quantify and characterize glycosylated proteins. Divided into 14 chapters, the book outlines recombinant glycoprotein expression in mammalian cells, insect cells, yeast, and bacterial systems. It covers the chemical and enzymatic syntheses of glycans and glyconjugates, and addresses the impact of glycosylation on protein function for the development of biologicals including vaccines. In the final chapters of the book, readers will discover more about the state-of-the-art in glycomics, glycoproteomics and glycan array technologies.
Industrial PID Controller Tuning presents a different view of the servo/regulator compromise that has been studied for a long time in industrial control research. Optimal tuning generally involves comparison of cost functions (e.g., a quadratic function of the error or a time-weighted absolute value of the error) but without taking advantage of available multi-objective optimization methods. The book does make use of multi-objective optimization to account for several sources of disturbance, applying them to a more realistic problem: how to select the tuning of a controller when both servo and regulator responses are important. The authors review the different deterministic multi-objective optimization methods. In order to ameliorate the consequences of the computational expense typically involved in their use-specifically the generation of multiple solutions among which the control engineer still has to choose-algorithms for two-degree-of-freedom PID control are implemented in MATLAB (R). MATLAB code and a MATLAB-compatible program are provided for download and will help readers to adapt the ideas presented in the text for use in their own systems. Further practical guidance is offered by the inclusion of several examples of common industrial processes amenable to the use of the authors' methods. Researchers interested in non-heuristic approaches to controller tuning or in decision-making after a Pareto set has been established and graduate students interested in beginning a career working with PID control and/or industrial controller tuning will find this book a valuable reference and source of ideas. Advances in Industrial Control reports and encourages the transfer of technology in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. The series offers an opportunity for researchers to present an extended exposition of new work in all aspects of industrial control.
This book provides a detailed explanation of the cold spray process from a practical standpoint. Drawing on the authors' 36 years of research and development experience, it is firmly rooted in theory but also substantiated by empirical data and practical knowledge, offering potential users the information they need to recognize the advantages, as well as the limitations, of cold spray. This sets it apart from previous works on the subject, which have been purely academic. Cold spray technology has made great dramatic strides over the last 10 years and is now being used extensively in the aerospace, electronics, automotive, medical, and even the petrochemical industries. Most recently, cold spray of near-net shaped parts was accomplished - something previously assumed to be impossible because of the limitations of commercially available cold spray systems and a lack of fundamental understanding regarding the process. The cost of cold spray has also declined, making it appealing to industry through the introduction of new powders, surface preparation techniques, and recovery systems tailored to the cold spray process. Though primarily intended for users of the technology, this handbook is also a valuable resource for researchers interested in advances in cold spray materials, improved feedstock powders, advanced hardware and software development, surface preparation techniques, and the numerous applications developed to date. For example, cold spray aluminum alloys have been developed that offer the strength and ductility of wrought material in the as-sprayed condition. This has yet to be achieved by conventional powder consolidation methods including laser sintering, electron beam, and ultrasonic techniques. Other topics covered include additive manufacturing, structural repair, nondestructive evaluation, advanced cold spray materials, qualification requirements, cold spray systems comparison, and, finally, helium recovery. Thanks to its practical focus, the book provides readers with everything they need to understand, evaluate, and implement cold spray technology.
This book introduces the fundamentals and principles of laser shock peening (LSP) for aeronautical materials. It focuses on the innovation in both theory and method related to LSP-induced gradient structures in titanium alloys and Ni-based alloys which have been commonly used in aircraft industries. The main contents of the book include: the characteristics of laser shock wave, the formation mechanism of gradient structures and the strengthening-toughing mechanism by gradient structures. The research has accumulated a large amount of experimental data, which has proven the significant effectiveness of LSP on the improvement of the fatigue performance of metal parts, and related findings have been successfully applied in aerospace field. This book could be used by the researchers who work in the field of LSP, mechanical strength, machine manufacturing and surface engineering, as well as who major in laser shock wave and materials science.
Companies often struggle to turn successful research into viable commercial products, processes and systems. This book defines technology development and reveals methods to successfully evaluate, fund and commercialize a technology. Cases studies help the reader evaluate the connection between a technology and potential markets, set useful hypotheses, develop statistically valid conclusions, and apply those conclusions to business goals.
Due to the consequences of globa l warming and significant greenhouse gas emissions, several ideas have been studied to reduce these emissions or to suggest solut ions for pollutant remov al. The most promising ideas are reduced consumption, waste recovery and waste treatment by biological systems. In this latter category, studies have demonstrated that the use of microalgae is a very promising solution for the biofixation of carbon dioxide. In fact, these micro-organisms are able to offset high levels of CO2 thanks to photosynthesis. Microalgae are also used in various fields (food industry, fertilizers, biofuel, etc.). To obtain a n optimal C O2 sequestration us ing micr oal gae, their cul tivatio n has to be c arried ou t in a f avorable e nvironment, corresponding to optimal operating conditions (temperature, nutrients, pH, light, etc.). Therefore, microalgae are grown in an enclosure, i.e. photobioreactors, which notably operate in continuous mode. This type of closed reactor notably enables us to reduce culture contamination, to improve CO2 transfer and to better control the cultivation system. This last point involves the regulation of concentrations (biomass, substrate or by-product) in addition to conventional regulations (pH, temperature). To do this, we have to establish a model of the system and to identify its parameters; to put in place estimators in order to rebuild variables that are not measured online (software sensor); and finally to implement a control law, in order to maintain the system in optimal conditions despite modeling errors and environmental disturbances that can have an influence on the system (pH variations, temperature, light, biofilm appearance, etc.).
Critical regimes of two-phase flows with a polydisperse solid phase form the basis of such widespread industrial processes as separation of various powdery materials and minerals dressing. It is impossible to describe such complicated flows analytically. Therefore, this study concentrates on invariants experimentally revealed and theoretically grounded for such flows. This approach can be compared with the situation in gases, where in order to determine principal parameters of their state, one does not need to measure the kinetic energy and velocity of each molecule and find its contribution to the temperature and pressure. These parameters are determined in a simple way for the system on the whole. A novel conception of two-phase flows allowing the formulation of their statistical parameters is physically substantiated. On the basis of the invariants and these parameters, a comprehensive method of estimating and predicting mass transfer in such flows is developed. It is noteworthy that the presented results are mostly phenomenological. Such an approach can be successfully extended to the separation of liquids, gases and isotopes. The book is intended for students and specialists engaged in chemical technology, mineral dressing, ceramics, microelectronics, pharmacology, power generation, thermal engineering and other fields in which flows carrying solid particles are used in the technological process.
This book reviews the current knowledge on tunable hydrogels, including the range of different materials and applications, as well as the existing challenges and limitations in the field. It covers various aspects of the material design, particularly highlighting biological responsiveness, degradability and responsiveness to external stimuli. In this book, readers will discover original research data and state-of-the-art reviews in the area of hydrogel technology, with a specific focus on biotechnology and medicine. Written by leading experts, the contributions outline strategies for designing tunable hydrogels and offer a detailed evaluation of the physical and synthetic methods currently employed to achieve specific hydrogel properties and responsiveness. This highly informative book provides important theoretical and practical insights for scholars and researchers working with hydrogels for biomedical and biotechnological applications. |
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