Green Chemistry Using Liquid And Supercritical Carbon Dioxide

Chemists have been researching 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.

Recently, supercritical fluids have emerged as more sustainable alternatives for the organic solvents often used in polymer processes. This is the first book emphasizing the potential of supercritical carbon dioxide for polymer processes from an engineering point of view. It develops a state-of-the-art overview on polymer fundamentals, polymerization reactions and polymer processing in supercritical carbon dioxide. The book covers topics in a multidisciplinary approach starting from polymer chemistry and thermodynamics, going through monitoring, polymerization processes and ending with polymer shaping and post-processing. The authors are internationally recognized experts from different fields in polymer reaction engineering in supercritical fluids. The book was initiated by the Working Party on Polymer Reaction Engineering of the European Federation of Chemical Engineering and further renowned international experts.

Chemists have been researching 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.

This book describes advances in this new, fast developing science, which seeks to decipher fundamental mechanisms ruling the behaviour in water, soils, atmosphere, food and living organisms of toxic metals, fossil fuels, pesticides and other organic pollutants. Sections on eco-toxicology, green chemistry, and analytical chemistry round out this thorough survey of conditions and analytical techniques in an emerging specialty.

Nicht nur in den westlichen Industrieländern ist Umweltschutz heute ein selbstverständlicher Bestandteil der gesellschaftlichen Existenz. Über die Entwicklung der Grünen Chemie und Technik informiert das 9-bändige "Handbook of Green Chemistry" (herausgegeben von Paul Anastas, dem Vater der Grünen Chemie), zu dem dieser vorliegende Band über superkritische Lösungsmittel gehört. Ausführlich wie nie zuvor behandelt er alle Aspekte dieses aufregenden Forschungsgebiet.

Green Sustainable Process for Chemical and Environmental Engineering and Science: Plant-Derived Green Solvents: Properties and Applications provide a comprehensive review on the green solvents such as bio solvents, terpenes, neem, alkyl phenols, cyrene, limenone, and ethyl lactate, etc. which are derived from plant sources. Chapters discuss introduction, properties, and advantages to the practical use of plant-derived solvents. Plants-derived solvents are an excellent choice for real-world applications to reduce the environmental and health safety considerations. This book is the result of commitments by top researchers in the field of biosolvents from various backgrounds and fields of expertise. This book is a one-stop reference for plant solvents and overviews up-to-date accounts in the field of modern applications and the first book in this research community. Introduces properties and application of green solvents from plants Gives an in-depth accounts on plant-derived solvents for various applications Outlines the benefits and possibilities of plant-derived solvents vs conventional solvents Outlines eco-friendly green solvents synthesis, properties and applications Key references to obtain great results in plant-derived green solvents

Green Solvents for Environmental Remediation provides an in-depth overview of environmental remediation by using eutectic solvents, ionic liquids, biosolvents, and switchable solvents, of ionic-liquids, biosolvents, Gas-expanded solvents Liquid polymers, supercritical fluids, Polymer-based green solvents, Switchable solvents, etc. This book offers all-types of green solvents for the removal of contaminations from the soil, air, and water. It summarizes in-depth literature on the application of various green solvents in the areas such as municipal water, extraction, bioremediation, phytoremediation, soil and sediment remediation, toxic gases removal, and various industrial effluents. A brief introduction, limitations, and advantages to the practical use of green solvents are also discussed. This book is authored by experts in a broad range of fields. It is an invaluable reference guide for the sustainable and environmentally friendly development of synthetic methodologies for environmental, analytical, engineering, and industrial technology. Provides an up-to-date research record on green solvents for environmental protection Includes latest advances in environmental remediation Outlines eco-friendly green solvents for toxic contaminants degradation and purification Covers all-types of green solvent-driven environmental remediation technologies Key references to obtain great results in environmental remediation using green solvents

In this volume, Professor He and his coworkers summarize polyethylene glycol (PEG)-promoted CO2 chemistry on the basis of understanding about phase behavior of PEG/CO2 system and reaction mechanism at molecular level. As PEG could be utilized as a green replacement for organic solvents, phase-transfer catalyst, surfactant, support in various reaction systems, significantly promoting catalytic activity and recovering expensive metal catalysts, particularly regarded as a CO2-philic material, the authors focus on special applications of PEG in CO2 capture and utilization, including PEG-functionalized catalysts for efficient transformation of CO2 and PEG-functionalized absorbents for efficient CO2 capture. Furthermore, they describe carbon capture and utilization strategy as an alternative approach to address the energy penalty problem in carbon capture and storage. Interestingly, the authors also discuss PEG radical chemistry in dense CO2 as rather creative and unusual use of PEG, presumably serves as a reaction medium and a radical initiator for radical chemistry.

Enhanced concern for the quality and safety of food products, increased preference for natural products, and stricter regulations on the residual level of solvents, all contribute to the growing use of supercritical fluid technology as a primary alternative for the extraction, fractionation, and isolation of active ingredients. As a solvent-free p