Green Chemistry Series – serie

There has been much research on the potential of liquid and supercritical carbon dioxide for environmentally safe applications. This edited volume will cover the various applications of using these forms of carbon dioxide. The three main areas of focus are catalysis and chemical synthesis in CO2, polymers in CO2, and industrial processes and applications utilizing CO2. The book is aimed at researchers in academia and industry, and the contributors are all experts in the field.

Pharmaceutical and fine chemical products are typically synthesised batchwise which is an anomaly since batch processes have a series of practical and economical disadvantages. On the contrary, flow continuous processes present a series of advantages leading to new ways to synthesise chemical products. Flow processes - * enable control reaction parameters more precisely (temperature, residence time, amount of reagents and solvent etc.), leading to better reproducibility, safer and more reliable processes * can be performed more advantageously using immobilized reagents or catalysts * improve the selectivity and productivity of the process and possibly even the stability of the catalyst * offer opportunities for heat exchange and energy conservation as well as an easy separation and recycling of the reactants and products by adequate process design * achieve multistep syntheses by assembling a line of reactors with minimum or no purification in between two reaction steps * can be assured by facile automation * scale-up can be easily conducted by number-up With all the new research activity in manufacturing chemical products, this comprehensive book is very timely, as it summarises the latest trends in organic synthesis. It gives an insight into flow continuous processes, outlining the basic concepts and explaining the terminology of, and systems approach to, process design dealing with both homogeneous and heterogeneous catalysis and mini- or micro-reactors. The book contains case studies, extensive bibliographies and reference lists in each chapter to enable the reader to grasp the contents and to go on to more detailed texts on specific subjects if desired. The book is written by both organic chemists and engineers giving a multidisciplinary vision of the new tools and methodologies in this field. It is essential reading for organic chemists (in industry or academia) working alongside chemical engineers or who want to undertake chemical engineering projects. It will also be of interest for chemical engineers to see how basic engineering concepts are applied in modern organic chemistry.

Biobased products offer substantial economic and environmental benefits, but understanding how to commercialize this requires a comprehensive look at the process, including feedstocks, technologies, product slate, supply chain, policy, financing, and environmental impact.Covering biobased products in a broad context, this book examines the environmental and economic impacts, compares US and EU policies, explores the factors affecting financing, and considers biological conversion, catalytic conversion, and separations.By examining the process from several critical perspectives in the supply chain, this book provides chemical engineers with a better understanding of challenges, opportunities, risks, and benefits of commercialization.

In recent years, a significant amount of progress has been made using green chemistry in the synthesis of synthetically useful compounds and molecules by replacing hazardous chemicals with greener alternatives. However, there is still room for improvement, especially in the pharmaceutical sector where new drugs are being formulated. This book examines green approaches to overcoming hazardous organic transformations. Summarizing recent developments, the book features a detailed description of some of the high impact active pharmaceutical ingredients that have been developed considering green chemistry approaches. It explores the design, engineering and process development and the calculations to account for waste. The book includes strategies to further advance green approaches in the development of generic pharmaceutical industries and features novel, innovative approaches that promote waste-free organic synthesis. This book is of interest to industrialists working in pharmaceuticals and researchers working in green chemistry.

Catalysis is a fundamentally sustainable process which can be used to produce a wide range of chemicals and their intermediates. Focussing on those catalytic processes which offer the most sustainability, this two-part book explores recent developments in this field, as well as examining future challenges. Focussing on catalysis without metals or other endangered elements, each chapter covers a different type of organocatalyst. Beginning with chapters on acid and base catalysis, the book then concentrates on asymmetric catalysis. Several chapters cover pyrrolidine-based and cinchona alkaloid-based catalysts, whilst other chapters examine further organoctalysts which are constructed only from sustainable elements. Together with “Sustainable Catalysis: With Non-endangered Metals”, these books examine the progress in sustainable catalysis in all areas of chemistry, and are an important reference for researchers working in catalysis and green chemistry.

Catalysis is a fundamentally sustainable process which can be used to produce a wide range of chemicals and their intermediates. Focussing on those catalytic processes which offer the most sustainability, this set of books explores recent developments in this field, as well as examining future challenges. Two of the books focus on catalysis through non-endangered metals and two look at catalysis without metals or other endangered elements. Green aspects of the various reactions are also discussed, such as atom economy and use of green solvents and other reaction conditions. Together these four volumes examine the progress in sustainable catalysis in all areas of chemistry, and are an important reference for researchers working in catalysis and green chemistry.

Green Chemistry seeks to reduce or remove the use and generation of hazardous substances from chemical processes. This selection of titles is drawn from the RSC's Green Chemistry book series, and presents a wealth of information for anyone wishing to implement a Green Chemistry approach to the synthesis of chemicals and materials.This set contains the following volumes:Eco-Friendly Synthesis of Fine Chemicals (ISBN 9781847559081) 312 pages, 2009Edited by Roberto BalliniThis book is devoted to the preparation of fine chemicals by new emerging approaches in the field of eco-friendly processes and procedures.Aqueous Microwave Assisted Chemistry (ISBN 9781849730389) 240 pages, 2010Edited by Vivek Polshettiwar and Rajender S VarmaProvides a comprehensive overview of the various processes developed using aqueous microwave chemistry, which is an environmentally, friendly green chemistry technique.Enatioselective Homogenous Supported Catalysis (ISBN 9781849731768) 300 pages, 2011Edited by Radovan ŠebestaThis book covers the most important concepts of homogeneous supported catalysis with an emphasis on enantioselective processes. It describes the state-of-the-art and latest developments in each area while critically evaluating the strengths and weaknesses of this important method.Sustainable Preparation of Metal Nanoparticles (ISBN 9781849734288) 242 pages, 2012Edited by Rafael Luque and Rajender S VarmaThis is the first multidisciplinary edited book covering the very basics to the more advanced, trendy developments, containing a unique blend of nano, green, renewable and bio.Alternative Solvents for Green Chemistry, 2nd Edition (ISBN 9781849735957) 350 pages, 2013Authored by Fran Kerton and Ray MarriottThis book, appropriate for newcomers to the field, gives an overview of the many different kinds of solvents including alternative greener solvent choices.

Biomass-derived sugars provide a rich, renewable feedstock for a diverse range of chemicals, making them a promising and feasible source for the sustainable manufacture of a variety of valuable products. Exploring green sugar-based technologies beyond their applications in fuels, this book provides an overview of sugar-based technologies, describing their challenges and opportunities. It covers transformations of sugars into green chemicals in pharmaceuticals, biodegradable polymers and surfactants. A special chapter is dedicated to the conversion of biomass into sugars, which is a crucial step in the sustainable utilization of sugars. The book is a valuable resource for chemists and chemical engineers working to develop greener synthetic routes to chemicals and pharmaceuticals.

The use of alternative energy forms and transfer mechanisms is one of the key approaches of process intensification. In recent years, significant amounts of research have been carried out in developing chemical processing technologies enhanced by plasma, electric and magnetic fields, electromagnetic and ultra-sound waves and high gravity fields. Discussing the broad impact of alternative energy transfer technologies on reactions, separations and materials synthesis, this book reports on recent breakthrough results in various application areas. It provides a comprehensive overview of the current developments in the field. The book enables industrialists, academics and postgraduates in alternative-energy based processing to see the potential of alternative energies for green chemistry and sustainability of chemical manufacturing.

Polymer science faces the challenge of meeting growing market demand for polymers whilst achieving sustainability through environmentally friendly processes. Microwave heating has emerged as a greener technique that accelerates a variety of chemical reactions, including polymerization. Microwave-assisted reactions can be cleaner and more rapid and economic analyses suggest that the cost of curing polymers may be reduced by switching over to the use of microwaves. This book provides comprehensive coverage of microwave-assisted polymerization. The first chapter introduces readers to the theory behind the accelerating effects of microwaves on chemical reactions and covers the types of commercial microwave reactors being used for synthesis and processing of polymers that are available on the market. Subsequent chapters are organised by type of reaction, including radical homo and co-polymerizations, step growth polymerization and peptide synthesis. Importantly, analysis of processes and product properties in comparison with conventional methods is also detailed.This book will be a valuable resource for green chemists and polymer scientists and engineers who want to develop sustainable processes.

Solvents are ubiquitous throughout the chemical industry and are found in many consumer products. As a result, interest in solvents and their environmental impact has been steadily increasing. However, in order to achieve maximum integration of new green solvents into the relevant chemical sectors, clarification of the social, economic, and environmental implications of solvent substitution are needed. This book explores the solvent life cycle, highlighting the challenges faced at various points, from production, through the supply-chain and downstream use to end-of-life treatment. It also discusses the potential benefits that a green chemistry and bio-based economy approach could bring. The current state-of-the-art of green solvents is evaluated along these lines, in addition to reviewing their applications with an appreciation of sustainability criteria. Providing a critical assessment on emerging solvents and featuring case studies and perspectives from different sectors, this is an important reference for academics and industrialists working with solvents, as well as policy-makers involved in bio-based initiatives.

It is well-established that organic synthetic processes have been at the core of the chemical industry for hundreds of years, in the production of organic compounds with a wide range of applications. However, we are becoming increasingly aware of the hazardous substances used and generated by these chemical processes. The field of organic synthesis has undergone profound changes to switch to equally efficient, but more sustainable processes that avoid the extensive use of toxic and hazardous reagents and solvents, harsh reaction conditions and expensive and sophisticated catalysts. Explaining methods for carrying out chemical syntheses without the use of catalysts, this book shows how avoiding catalysts during synthesis can mean less use of toxic chemicals, environmentally damaging chemicals or endangered elements and lower costs. It is an important reference for chemists involved in organic synthesis, as well as for green chemists.

Pharmaceutical manufacturing was one of the first industries to recognize the importance of green chemistry, with pioneering work including green chemistry metrics and alternative solvents and reagents. Today, other topical factors also have to be taken into consideration, such as rapidly depleting resources, high energy costs and new legislation. This book addresses current challenges in modern green chemical technologies and sustainability thinking. It encompasses a broad range of topics covered by the CHEM21 project – Europe’s largest public-private partnership project which aims to develop a toolbox of sustainable technologies for green chemical intermediate manufacture. Divided into two sections, the book first gives an overview of the key green chemistry tools, guidance and considerations aimed at developing greener processes, before moving on to look at cutting-edge synthetic methodologies. Featuring innovative research, this book is an invaluable reference for chemists across academia and industry wanting to further their knowledge and understanding of this important topic.

In recent years carbon dioxide has played an increasingly important role in biomass processing. This book presents the state-of-the-art of a range of diverse approaches for the use of carbon dioxide in biomass valorisation. The book explores cutting-edge research and important advances in green high-pressure technologies. It gives an overview of the most relevant and promising applications of high-pressure CO2-based technologies in biomass processing from the perspective of the biorefinery concept. Demonstrating the interdisciplinary aspects of high-pressure technologies from biology, chemistry and biochemical engineering areas, this book brings researchers and industrialists up to date with the latest advances in this field, including novel technologies for energy; biochemicals and materials production; and green chemical engineering processes.

Traditional thermal and freezing processing techniques have been effective in maintaining a safe high quality food supply. However, increasing energy costs and the desire to purchase environmentally responsible products have been a stimulus for the development of alternative technologies. Furthermore, some products can undergo quality loss at high temperatures or freezing, which can be avoided by many alternative processing methods.This second edition of Alternatives to Conventional Food Processing provides a review of the current major technologies that reduce energy cost and reduce environmental impact while maintaining food safety and quality. New technologies have been added and relevant legal issues have been updated. Each major technology available to the food industry is discussed by leading international experts who outline the main principles and applications of each. The degree to which they are already in commercial use and developments needed to extend their use further are addressed.This updated reference will be of interest to academic and industrial scientists and engineers across disciplines in the global food industry and in research, and to those needing information in greener or more sustainable technologies.

Fast pyrolysis and related catalytic pyrolysis are of increasing interest as pathways to advanced biofuels that closely mimic traditional petroleum products. Research has moved from empirical investigations to more fundamental studies of pyrolysis mechanisms. Theories on the chemical and physical pathways from plant polymers to pyrolysis products have proliferated as a result. This book brings together the latest developments in pyrolysis science and technology. It examines, reviews and challenges the unresolved and sometimes controversial questions about pyrolysis, helping advance the understanding of this important technology and stimulating discussion on the various competing theories of thermal deconstruction of plant polymers. Beginning with an introduction to the biomass-to-biofuels process via fast pyrolysis and catalytic pyrolysis, chapters address prominent questions such as whether free radicals or concerted reactions dominate deconstruction reactions. Finally, the book concludes with an economic analysis of fast pyrolysis versus catalytic pyrolysis.This book will be of interest to advanced students and researchers interested in the science behind renewable fuel technology, and particularly the thermochemical processing of biomass.

We rely upon plastics for a great many functions in everyday life, from the cases of consumer electronics to disposable cutlery, plastics are versatile and convenient. However, with the supply of fossil fuels from which fossil-based plastics are derived becoming smaller and more expensive the need for alternatives is becoming increasingly apparent. Policy makers, environmentalists and consumers are increasing pressure on plastics manufacturers to look for greener alternatives to fossil-based plastics. Bioplastics are materials that are derived wholly or partially from biomass feedstocks, making them renewable, whilst maintaining the desirable properties of fossil-based plastics. Many, although not all, bioplastics are also more readily degradable than conventional plastics, a property increasingly desired by consumers. A variety of different bioplastics have already been developed and the field continues to grow.This book provides a comprehensive overview of the diverse subjects relating to bioplastics, including materials science, manufacture and processing and social and environmental impacts. It provides a valuable introduction both for those studying plastics at a graduate level and those starting to work in the field.

Aerogels have been in use for over 80 years and have been utilised in a wide variety of applications, in particular, there has been growing use of insulating nanoporous materials in the aerospace industry. Recent awareness of the environmental implications of materials has driven researchers to develop new green materials, with aerogels being developed using biobased constituents, such as polysaccharides and proteins. Recently, biobased components, such as cellulose nanocrystals, have replaced synthetic counterparts in the production of nanoporous materials.Biobased Aerogels is the first book to cover aerogel research from a green perspective, using commentary and analysis from leading researchers working in the field. Aerogels based on polysaccharides and proteins, their preparation and characterisation will be covered in detail, with further discussion highlighting properties such as surface morphology, shape recovery, mechanical properties and adsorption capacity.This insightful and timely publication will provide essential reading for those researchers and industrialists working within the green chemistry field.

In recent years bioprocessing has increased in popularity and importance, however, bioprocessing still poses various important techno-economic and environmental challenges, such as product yields, excessive energy consumption for separations in highly watery systems, batch operation or the downstream processing bottlenecks in the production of biopharmaceutical products. Many of those challenges can be addressed by application of different process intensification technologies discussed in the present book. The first book dedicated entirely to this area, Intensification of Biobased Processes provides a comprehensive overview of modern process intensification technologies used in bioprocessing. The book focusses on four different categories of biobased products: bio-fuels and platform chemicals; cosmeceuticals; food products; and polymers and advanced materials. It will cover various intensification aspects of the processes concerned, including (bio)reactor intensification; intensification of separation, recovery and formulation operations; and process integration. This is an invaluable source of information for researchers and industrialists working in chemical engineering, biotechnology and process engineering.

CO2-responsive materials are a relatively recent innovation. In general, stimuli-responsive materials exhibit reversible changes in their physical or chemical properties in response to external triggers such as temperature, pH, light, or voltage. However, there are often limitations in applying these triggers including economic and environmental costs, and product contamination. The realization that CO2 can be used as an effective trigger for stimulating changes in material properties has prompted a surge in interest in this area within the past few years, with numerous new studies currently underway in several countries. CO2 is an ideal trigger for switchable or stimuli-responsive materials because it is benign, inexpensive, green, abundant, and does not accumulate in the system. Many different CO2-responsive materials including polymers, latexes, solvents, solutes, gels, surfactants, and catalysts have been prepared. Summarizing recent progress in the preparation, self-assembly, and functional applications of CO2-responsive materials, this book explores the physical chemistry of CO2-switching, including constraints on structural design and process conditions, together with applications. With emphasis on the environmental, health, and safety advantages and disadvantages compared to conventional materials, it is ideal for researchers and industrialists working in green chemistry, chemical engineering, and polymer chemistry.

Exploring the range and utility of high-pressure solvent systems across a variety of different chemical applications, this book brings together recent advances in supercritical technology and other pressurised-solvent systems. It provides an in-depth overview of the latest advances and developments and discusses the limitations and drawbacks that need to be addressed. Wherever possible, the greenness and economic viability of the different solvent systems is highlighted. This book is ideal for researchers and industrialists working in environmental science, green chemistry and biorefineries.

There is a growing interest in the development of sustainable processes for the synthesis of pharmaceuticals and this book bridges the divide between industrial examples and the fundamental chemistry. It explains the basic principles of using transition metal catalysis with several green approaches for the synthesis of pharmaceuticals. The topic is an important one for green chemistry and the chapters in this book on hydroformylation, green oxidation and olefin metathesis will also be of interest to both medicinal and organic chemists.Written by leading experts in the field, it provides a valuable and easy tool for scientists and industrialists who require information regarding this topic.

Biorefineries are becoming increasingly important in providing sustainable routes for chemical industry processes. The establishment of bio-economic models, based on biorefineries for the creation of innovative products with high added value, such as biochemicals and bioplastics, allows the development of “green chemistry” methods in synergy with traditional chemistry. This reduces the heavy dependence on imports and assists the development of economically and environmentally sustainable production processes, that accommodate the huge investments, research and innovation efforts. This book explores the most effective or promising catalytic processes for the conversion of biobased components into high added value products, as platform chemicals and intermediates. With a focus on heterogeneous catalysis, this book is ideal for researchers working in catalysis and in green chemistry.

Providing a detailed survey of renewable raw materials for paints, inks and glues, this book is ideal for researchers and practitioners working in the areas of green chemistry, industrial chemistry and sustainability. Beginning with a brief history of coatings and adhesives, this book walks the reader through the chemistry, properties, sourcing and processing of a number of renewable raw materials, including lipids, natural resins, proteins, and carbohydrates. Their use in a range of recent developments and concepts from material protection, to decorative paints and coatings, adhesives and sealants is highlighted, providing the reader with a complete and modern foundation to the field.

Many modern surface coatings and adhesives are derived from fossil feedstocks. With fossil fuels becoming more polluting and expensive to extract as supplies dwindle, industry is turning increasingly to nature, mimicking natural solutions using renewable raw materials and employing new technologies.Highlighting sustainable technologies and applications of renewable raw materials within the framework of green and sustainable chemistry, circular economy and resource efficiency, this book provides a cradle-to-cradle perspective. From potential feedstocks to recycling/reuse opportunities and the de-manufacture of adhesives and solvents, green chemistry principles are applied to all aspects of surface coating, printing, adhesive and sealant manufacture.This book is ideal for students, researchers and industrialists working in green sustainable chemistry, industrial coatings, adhesives, inks and printing technologies.

Rubber is used in a vast number of products, from tyres on vehicles to disposable surgical gloves. Increasingly both manufacturers and legislators are realising that recycling is essential for environmental sustainability and can improve the cost of manufacture. The volume of rubber waste produced globally makes it difficult to manage as accumulated waste rubber, especially in the form of tyres, can pose a significant fire risk. Recycling rubber not only prevents this problem but can produce new materials with desirable properties that virgin rubbers lack.This book presents an up-to-date overview of the fundamental and applied aspects of renewability and recyclability of rubber materials, emphasising existing recycling technologies with significant potential for future applications along with a detailed outline of new technology based processing of rubber to reuse and recycle. This book will be of interest to researchers in both academia and industry as well as postgraduate students working in polymer chemistry, materials processing, materials science and engineering.

The concept of a circular economy has been gaining increasing attention in recent years. Many of the sources of chemicals we have become reliant on are dwindling and the accumulation of waste products poses a serious environmental problem. By recovering resources from these waste materials, we can reduce our dependence on virgin feedstocks that may not be sustainable as well as reducing the quantity of material going to landfill sites. Incorporating different perspectives from a global authorship, this book aims to introduce systems thinking to the field of waste and resource management. The topics covered range from the use of biogeochemical processes in resource recovery to the application of engineered nanomaterials, with information relevant to both academia and industry.The broad range and cross-disciplinary nature of the topics in this book make it a valuable resource for those working in circular economy research, green chemistry and waste and resource management.

Currently the majority of carbon-based feedstocks come from fossil fuels of which there is a finite supply. Methane is an abundantly available carbon-based feedstock, with large amounts now available through fracking and renewable sources available from biogas plants. However, methane is not very chemically reactive. One of the remaining “grand challenges” in chemistry is the development of clean, efficient, affordable processes that allow methane to be converted to other high value molecules.Highlighting the recent advances in methane activation and direct conversion processes this book discusses the progress and current state of the art for a wide variety of alternative methane activation and subsequent conversion processes, including homogeneous and heterogeneous catalytic, electrocatalytic and pyrolytic systems. It is a useful resource for anyone working in green chemistry, catalysis and chemical engineering.

Historically pharmaceutical and fine chemical products have been synthesised using batch methods, but increasingly chemists are looking towards flow chemistry as a greener and more efficient alternative. In flow chemistry reactions are performed in a reactor with the reactants pumped through it. It has the benefit of being easily scaled up and it is straightforward to integrate synthesis, workup and analysis into one system. Flow chemistry is considered a greener alternative to batch chemistry because it is easier to control and minimise hazardous intermediates and by-products. There is significant interest in the use of flow chemistry both in the lab and on an industrial scale.Flow Chemistry provides an update on recent advances that have been made in the field. Particular emphasis is given to the new integrated approaches that bring together several elements to implement flow processes as a regular green chemistry tool for the chemical industries. With chapter contributions from several well-known experts in the field, this book is a valuable resource for researchers working in green chemistry and synthesis, chemical engineers and industrial chemists working in the pharmaceutical and fine chemicals industries.