Membrane technologies play an increasingly important role in unit operations for resource recovery, pollution prevention, and energy production, as well as environmental monitoring and quality control. They are also key component technologies of fuel cells and bioseparation applications. Membrane Technologies and Applications provides essential data and background information on various dimensions of membrane technologies, with a major focus on their practical application. Membranes of inorganic materials offer cost-effective solutions for simple to complex separation problems. This book is designed for anyone interested in water and wastewater treatment, membrane suppliers, as well as students and academics studying the field.

Rising oil costs have stimulated significant interest in the Fischer-Tropsch synthesis (FTS) as a method for producing a synthetic petroleum substitute. Drawn from the proceedings at a symposium held during the 236th meeting of the American Chemical Society in Philadelphia in August 2008, Advances in Fischer-Tropsch Synthesis, Catalysts, and Catalysis explores the recent developments in Fischer-Tropsch technology, which holds great promise in the area of renewable resources. Expert contributors explore a range of issues The book focuses on three main themes: catalyst preparation and activation, reaction mechanism, and process-related topics. A panel of expert contributors discusses synthesis of catalysts, carbon nanomaterials, nitric oxide calcinations, the influence of carbon, catalytic performance issues, chelating agents, and Cu and alkali promoters. They also explore Co/silica catalysts, thermodynamic control, the Two Alpha model, co-feeding experiments, internal diffusion limitations, Fe-LTFT selectivity, and the effect of co-fed water. Lastly, the book examines cross-flow filtration, kinetic studies, reduction of CO2 emissions, syncrude, and low-temperature water-gas shift. Attaining the maximum catalytic activity and catalyst life The themes explored in the book demonstrate that while the Fischer-Tropsch synthesis (FTS) has advanced in maturity, many issues remain concerning the preparation of increasingly active catalysts and the method of activation to attain the maximum catalytic activity and catalyst life. The book includes coverage of the structural features, their changes, and the application of increasingly sophisticated characterization techniques, shedding light on the reaction mechanism and providing a glimpse into the processes and reaction rates under realistic commercial process conditions.

Although there is a shortage of light petroleum, there is plenty of heavy petroleum rich in macromolecules available, creating an increasing interest for processes that can convert heavy oils to light oils. Process Chemistry of Petroleum Macromolecules provides the scientific basis for such processes, presenting methods to determine improvement potential. Topics include characterization, thermal kinetics, phase behavior, and separation. Revealing that the science of petroleum macromolecules is simpler and more exciting than imagined, it also discusses macromolecules that self-associate, liquid crystalline phases, reactions triggered by phase separation, and both dispersed and dissolved solutes.

New synthetic techniques allow chemists to modify polymer microstructures more precisely than ever, making it possible to design materials that meet increasingly demanding performance requirements. Written and edited by experts in the field, Stereoselective Polymerization with Single-Site Catalysts reviews how the relative stereochemistry of polymer chains affects polymer properties and presents the latest strategies for developing tactic polymers using single-site catalysis. This unified volume explains the mechanistic basics of tactic polymerizations, beginning with an extensive survey of the most important classes of metallocene and post-metallocene catalysts used to make polypropylenes. It also focuses on tactic stereoblock and ethylene/propylene copolymers and catalyst active site models, followed by chapters discussing the structure of more stereochemically complex polymers and polymerizations that proceed via non-vinyl-addition mechanisms. Individual chapters thoroughly describe tactic polymerizations of -olefins, styrene, dienes, acetylenes, lactides, epoxides, acrylates, and cyclic monomers, as well as cyclopolymerizations and ditactic structures, olefin/CO polymers, and metathesis polyalkenamers. An ideal reference and supplementary text, Stereoselective Polymerization with Single-Site Catalysts enables both new and experienced chemists to better understand tactic polymers and select appropriate catalyst systems for their preparation.

Many oil refineries employ hydroprocessing for removing sulfur and other impurities from petroleum feedstocks. Capable of handling heavier feedstocks than other refining techniques, hydroprocessing enables refineries to produce higher quality products from unconventional - and formerly wasted - sources. Hydroprocessing of Heavy Oils and Residua illustrates how to obtain maximum yields of high-value products from heavy oils and residue using hydroprocessing technologies. While most resources on hydroprocessing concentrate ongas oil and lower boiling products, this book details the chemistry involved and the process modifications required for the hydroprocessing of heavy crude oils and residua. Emphasizing the use of effective catalysts to ensure cleaner and more efficient industrial fuel processes, the book presents key principles of heterogeneous catalyst preparation, catalyst loading, and reactor systems. It explains how to evaluate and account for catalysts, reactor type, process variables, feedstock type, and feedstock composition in the design of hydroprocessing operations. The text concludes with examples of commercial processes and discusses methods of hydrogen production. To meet the growing demand for transportation fuels and fuel oil, modern oil refineries must find ways to produce high quality fuel products from increasingly heavy feedstocks. Hydroprocessing of Heavy Oils and Residua contains the fundamental concepts, technologies, and process modifications refineries need to adapt current hydroprocessing technologies for processing heavier feedstocks.

Improving the effectiveness of catalysts is the best way to ensure cleaner, more efficient industrial processes for a wide range of applications. Catalyst Preparation: Science and Engineering explores the optimization of catalytic materials through traditional and novel methods of catalyst preparation, characterization, and monitoring on laboratory and industrial scales. The book presents many key principles of heterogeneous catalyst preparation and the methods used to synthesize a catalyst with a particular composition and morphology. The first chapters examine the synthesis of bulk materials including amorphous and mesoporous oxide supports, heteropolyacids, and colloidal metals. Subsequent chapters focus on the syntheses of heterogeneous nanoscale materials, including those based on metal complex-substrate interactions and those using non-interacting precursors via viscous drying. The final chapters concentrate on pretreatment, drying, and finishing effects before concluding with a prognosis on future applications involving catalyst preparation and the technological advances necessary for continued progress. An ideal companion for scientists exploring the preparation of application-specific catalysts based on desired catalytic properties, Catalyst Preparation: Science and Engineering provides a balanced overview of important synthesis parameters to consider for good catalyst design.

The biopharmaceutical industry has become an increasingly important player in the global economy, and the success of these products depends on the development and implementation of cost-effective, robust and scaleable production processes. Bioseparations-also called downstream processing- can be a key source of competitive advantageto biopharmaceutical developers. Process Scale Bioseparations for the Biopharmaceutical Industry brings together scientific principles, empirical approaches, and practical considerations for designing industrial downstream bioprocesses for various classes of biomolecules. Using clear language along with numerous case studies, examples, tables, flow charts, and schematics, the book presents perspectives from experienced professionals involved in purification processes and industrial downstream unit operations. The authors provide useful experimental design strategies and guidelines for developing application-specific process scale bioseparations. Chapter topics include harvest by centrifugation and filtration, expanded bed chromatography, protein refolding, modes of preparative chromatography, methodologies for resin screening, membrane chromatography, protein crystallization, viral filtration, ultrafiltration/diafiltration, implementing post-approval downstream process changes for an antibody product, and future trends. Ideal for both new and experienced scientists in the biopharmaceutical industry and students, Process Scale Bioseparations for the Biopharmaceutical Industry is a comprehensive resource for all topics relevant to industrial process development.

Thoroughly revised and reorganized, the second edition of Interfacial Forcesin Aqueous Media examines the role of polar interfacial and noncovalent interactions among biological and nonbiological macromolecules as well as biopolymers, particles, surfaces, cells, and both polar and apolar polymers. The book encompasses Lifshitz-van der Waals and electrical double layer interactions, as well as Lewis acid-base interactions between colloidal entities in polar liquids such as water. New in this Edition: Four previously unpublished chapters comprising a new section on interfacial properties and structure of liquid water New material throughout the text on the interplay between macroscopic-scale repulsions and microscopic-scale attractions in protein adsorption A new chapter covering interfacial tension determination A new chapter examining the kinetics and energetics of protein adsorption onto metal oxide surfaces Dr. van Oss describes the nature of the various manifestations of hydrophobic interactions as well as of hydration pressure and analyzes the measurement of the contact angles that result when liquid droplets are deposited on flat solids. He also covers coacervation and complex coacervation, discusses the determination methods of electrokinetic potentials, and treats some of the lesser-known properties of water, such as cluster formation and the hydrophobicity of the water-air interface. Principally involved in multiple applications of colloids and interface science for more than 50 years, Carel Jan van Oss is Editor Emeritus of Immunological Investigations and Founding Editor of Preparative Biochemistry and Biotechnology and of Separation and Purification Reviews. He is an editorial advisor for the Journal of Dispersion Science and Technology. In addition to these Taylor & Francis journals, Dr. van Oss is the author, coauthor, or editor of eleven books, including Colloid & Surface Properties of Clays and Related Minerals (2002), and over 350 scientific papers and chapters.

In spite of the apparent simplicity of silica's composition and structure, scientists are still investigating fundamental questions regarding the formation, constitution, and behavior of colloidal silica systems. Colloidal Silica: Fundamentals and Applications introduces new information on colloid science related to silica chemistry as well as theoretical and experimental aspects of significant areas of colloidal silica science and technology. This resource is dedicated to helping researchers find new uses of silica and answers to practical problems as its industrial use continues to grow steadily in traditional and novel areas. Written by leading silica scientists around the world, this book reflects developments in the field since silica scientist Ralph K. Iler published his authoritative book on silica chemistry in 1979. It discusses properties and methods of characterization, synthesis, and preparation of silica in terms of industrial applications. Following an analysis of the surface chemistry of various silicas, the book explores methods for measuring particle size and useful characterization techniques for determining structure, stability, and reactivity. The authors then focus on various studies, analytical methods, and current applications involving silica gels and powders, silica coatings, colloidal silica, and sol-gel technology. Colloidal Silica: Fundamentals and Applications features up-to-date material relating to fields as diverse as catalysis, metallurgy, electronics, glass, ceramics, paper and pulp technology, optics, elastomers, food, health care, and industrial chromatography. It is ideal for scientists interested in silica chemistry and physics as well as those not familiar with the subject.

Interest in structured catalysts is steadily increasing due to the already proven, as well as potential, advantages of these catalysts. Updating the comprehensive coverage of the first edition published in 1998 with the latest science and applications, Structured Catalysts and Reactors, Second Edition gives detailed information on all aspects of structured catalysts and reactors, including: materials, mass transfer, selectivity, activity, and stability; catalyst preparation, design, and characterization; process development; modeling and optimization; reactor design; and operation costs and considerations. The book first examines how monolithic catalysts are used to clean exhaust gas from gasoline engines, treat industrial off-gases, burn fuels in commercial settings, and synthesize chemicals in two- and three-phase processes. It discusses configurations, microstructure, physical properties, and manufacture of ceramic and metallic monoliths before directing its focus to arranged catalysts and structured packings in terms of mass transfer. The book then explores catalytically active membranes and filters, featuring metallic membranes, permeation mechanisms, preparation and modeling, commercial membranes, and the latest applications, such as zeolitic membranes. Finally, several chapters present techniques for incorporating catalytic species into the structured catalyst support and controlling catalyst nanoporosity. This book conveys the scientific as well as economic advantages of using these unconventional catalytic techniques. With over 1500 references, tables, drawings, and photographs, as well as in-depth discussions and a new approach to catalytic processes, Structured Catalysts and Reactors, Second Edition is an essential reference for anyone working with or studying catalysis.

In the past two decades, new modeling efforts have gradually incorporated more molecular and structural detail in response to environmental and technical interests. Molecular Modeling in Heavy Hydrocarbon Conversions introduces a systematic molecule-based modeling approach with a system of chemical engineering software tools that can automate the entire model building, solution, and optimization process. Part I shows how chemical engineering principles provide a rigorous framework for the building, solution, and optimization of detailed kinetic models for delivery to process chemists and engineers. Part II presents illustrative examples that apply this approach to the development of kinetic models for complex process chemistries, such as heavy naphtha reforming and gas oil hydroprocessing. Molecular Modeling in Heavy Hydrocarbon Conversions develops the key tools and best possible approaches that process chemists and engineers can use to focus on the process chemistry and reaction kinetics for performing work that is repetitive or prone to human-error accurately and quickly.

At the interface of chemical industry operations, equipment manufacturer input, and the scientific literature, Industrial Crystallization of Melts explores and explains melt crystallization and purification in the industrial arena. This comprehensive account details the orderly conversion of melts into solid, salable end materials and procedures for purification by remelting; summarizes key theoretical concepts relating to crystalline matter and instationary heat transfer; and surveys the equipment available for specific processes. It also offers over 100 tested equations, as well as clear-cut methods for handling organic melts that call for special crystallization provisions.

Electrical Properties of Polymers describes the electric phenomena responsible for determining the chemical and supramolecular structure of polymers and polymeric materials. The authors explore the properties of quasi-static dipoles, reviewing Brownian motion, Debye theory, Langevin and Smoluchowski equations, and the Onsager model. This reference displays Maxwell and entropy equations, along with several others, that depict the thermodynamics of dielectric relaxation. Featuring end-of-chapter problems and useful appendices, the book reviews molecular dynamics simulations of dynamic dielectric properties and inspects mean-square dipole moments of gases, liquids, polymers, and fixed conformations.

Catalytic Naphtha Reforming, Second Edition presents modern, crystal-clear explanations of every aspect of this critical process for generating high-octane reformate products for gasoline blending and production of benzene, toluene, and xylene (BTX) aromatics. The book details the chemistry of naphtha reforming, the preparation and characterization of catalysts, and the very latest commercial technologies and industrial applications. With more than 300 tables and figures, it addresses the development of new catalysts and revamp process improvements propelled by regulations on sulfur, benzene, and oxygenate content in gasoline and refinery pressure to maximize utilization of existing assets.

This comprehensive handbook provides up-to-date knowledge and practical advice from established authorities in aerosol science. It covers the principles and practices of bioaerosol sampling, descriptions and comparisons of bioaerosol samplers, calibration methods, and assay techniques, with an emphasis on practicalities, such as which sampler to use and where it should be placed. The text also offers critiques concerning handling the samples to provide representative and meaningful assays for their viability, infectivity, and allergenicity. A wide range of microbes-viz., viruses, bacteria, fungi and pollens, and their fragments-are considered from such perspectives. Bioaerosols Handbook is divided into four parts, providing a wide-ranging reference work, as well as a practical guide on how best to sample and assay bioaerosols using current technology.

Lead Poisoning discusses one of the most critical and preventable environmentally induced illnesses. The actual toll lead poisoning takes on society cannot be measured fully due to the "silent" nature of health effects, such as subtle intellectual deficits and neurological damage, caused by chronic low-level exposures. This book covers every major topic on the subject, including lead poisoning in children, sources of contamination, state-of-the-art sampling and analytical measurement methods, the newest studies on low-cost abatement methods, and much more. This reference is the most comprehensive presentation of issues currently available under one cover. The text is divided into three major parts. Part I provides insights from studies assessing lead exposures from paint, dust, soil, and lead battery recycling operations. The second part is a unique collection of strategic federal policy statements from the U.S. EPA, HUD, and HEW-CDC. It details the National Implementation Plan as well as a local government's efforts to provide low-cost effective risk communication and public outreach to the community. The next part offers seven chapters on analytical issues in the measurement of lead in blood, paint, dust, and soils. Part IV, Sampling Methods and Statistical Issues, rounds out the technical portion of the volume. The relationships among lead levels in biological and environmental media are investigated and the interpretive problems discussed. The use of multi-element analysis of environmental samples as an approach to investigate sources is described. The book finishes with its most unique feature-OPPT's Check Our Kids for Lead Program, one organization's effort to empower its employees to make a personal difference in confronting the problem of lead poisoning in children. The Program serves as a model for other government organizations (federal, state, and local), university and community organizations, and corporations to educate them and take personal and corporate responsibility for addressing this important and environmental health problem.

The book provides insight into the working of clays and clay minerals in speeding up a variety of organic reactions. Clay minerals are known to have a large propensity for taking up organic molecules and can catalyse numerous organic reactions due to fine particle size, extensive surface area, layer structure, and peculiar charge characteristics. They can be used as heterogeneous catalysts and catalyst carriers of organic reactions because they are non-corrosive, easy to separate from the reaction mixture, and reusable. Clays and clay minerals have an advantage over other solid acids as they are abundant, inexpensive, and non-polluting.

Micelles are prevalent in naturally occurring and biological catalytic reactions. However, it is only in recent decades that scientists have developed kinetic models clarifying how micelle-mediated catalysis works at a molecular level. Written by a leading expert in the field, Micellar Catalysis is an in-depth examination of how micelles affect reaction mechanisms and reaction rates in organic and inorganic reactions. The book first discusses the structural and chemical properties of micelles and the role of thermodynamics, concentration, and additives in forming micelles. Demonstrating how intermolecular forces influence the reaction mechanisms, the author presents kinetic models for reactions catalyzed by normal micelles, as well as mixed micelles and metallomicelles. The book also compares various types of catalytic reactions with and without micelles to quantify their effect on reaction rates and rate constants. Using this information, it illustrates how micelles can modify reaction rates and improve catalytic efficiency, particularly for industrial processes. The final chapter explains the principles of kinetics used for data analysis. Focused on kinetic, chemical, and physical aspects of micelle-mediated reactions, this book offers clear insight into the complex mechanisms that occur in biological reactions. Micellar Catalysis is an essential source of reference for scientists involved in the research and development of micelles for industrial and biochemical applications.

Providing in-depth coverage of the technologies and various approaches, Luminous Chemical Vapor Deposition and Interface Engineering showcases the development and utilization of LCVD procedures in industrial scale applications. It offers a wide range of examples, case studies, and recommendations for clear understanding of this innovative science. The book comprises four parts. Part 1 describes the fundamental difference between glow discharge of an inert gas and that of an organic vapor, from which the concepts of Luminous Gas Phase derive. Part 2 explores the various ways of practicing Luminous Vapor Disposition and Treatment depending on the type and nature of substrates. Part 3 covers some very important aspects of surface and interface that could not have been seen clearly without results obtained by application of LCVD. Part 4 offers some examples of interface engineering that show very unique aspects of LCVD interface engineering in composite materials, biomaterial surface and corrosion protection by the environmentally benign process. Timely and up-to-date, the book provides broad coverage of the complex relationships involved in the interface between a gas/solid, liquid/solid, and a solid/solid. The author presents a new perspective on low-pressure plasma and describes key aspects of the surface and interface that could not be shown without the results obtained by LCVD technologies. Features Provides broad coverage of complex relationships involved in interface between a gas/solid, a liquid/solid, and a solid/solid Addresses the importance of the initial step of creating electrical glow discharge Describes the principles of creating chemically reactive species and their growth in the luminous gas phase Focuses on the nature of surface-state of solid and on the creation of imperturbable surface-state by the contacting phase or environment, which is vitally important in creating biocompatible surface, providing super corrosion protection of metals by environmentally benign processes, etc. Offers examples on how to use LCVD in the interface engineering process Presents a new view on low-pressure (low-temperature) plasma and emphasizes the importance of luminous gas phase and chemical reactions that occur in the phase About the author: Dr. Yasuda is one of the pioneers who explored low-pressure plasma for surface modification of materials and deposition of nano films as barrier and perm-selective membranes in the late 1960s. He obtained his PhD in physical and polymer chemistry working on transport properties of gases and vapors in polymers at State University of New York, College of Environmental Science and Forestry at Syracuse, NY. He has over 300 publications in refereed journals and books, and is currently a Professor Emeritus of Chemical Engineering, and Director, Center for Surface Science & Plasma Technology, University of Missouri-Columbia, and is actively engaged in research on the subjects covered by this book.

This book summarizes the various microfluidic-based approaches for single-cell capture, isolation, manipulation, culture and observation, lysis, and analysis. Single-cell analysis reveals the heterogeneities in morphology, functions, composition, and genetic performance of seemingly identical cells, and advances in single-cell analysis can overcome the difficulties arising due to cell heterogeneity in the diagnostics for a targeted model of disease. This book provides a detailed review of the state-of-the-art techniques presenting the pros and cons of each of these methods. It also offers lessons learned and tips from front-line investigators to help researchers overcome bottlenecks in their own studies. Highlighting a number of techniques, such as microfluidic droplet techniques, combined microfluidics-mass-spectrometry systems, and nanochannel sampling, it describes in detail a new microfluidic chip-based live single-cell extractor (LSCE) developed in the editor's laboratory, which opens up new avenues to use open microfluidics in single-cell extraction, single-cell mass spectrometric analysis, single-cell adhesion analysis and subcellular operations. Serving as both an elementary introduction and advanced guidebook, this book interests and inspires scholars and students who are currently studying or wish to study microfluidics-based cell analysis methods.

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: rain drops combustion engines soap bubbles foam food products air pollution waste-water treatment washing and cleaning cosmetics painting and printing oil and gas production oil spills plastics and polymers biology and pharmaceuticals milk products cement adhesive coal 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.

This text examines the thermal and catalytic processes involved in the refining of petroleum including visbreaking, coking, pyrolysis, catalytic cracking, oligomerization, alkylation, hydrofining, hydroisomerization, hydrocracking, and catalytic reforming. It analyzes the thermodynamics, reaction mechanisms, and kinetics of each process, as well as the effects of operating conditions and reactor design on process performance and product quality. This is a valuable resource for chemists who wish to improve their knowledge of some of the real world issues that must be addressed in hydrocarbon conversion. Topics include processes on metallic catalysts, processes using bifunctional catalysts, and catalytic reforming.

The increasing demand for environmentally friendly materials and the need for cheaper fibres points the search in the direction of natural products such as bark, leaves, scales or shells. The aim of this book is to provide a forum to review the recent advances in the area of plant and animal-based composites and identify possible trends for further developments.

In the past few decades, marine organisms, including macroalgae and microalgae, have been extensively explored as potential sources of bioactive compounds with applications in various fields such as pharmaceuticals, biomedicine, cosmetics and foodstuffs. Marine polysaccharides, such as chitin/chitosan, ulvans, fucans, alginates and carrageenans, are biochemical compounds with several important properties such as anticoagulant and/or antithrombotic, immunomodulatory, antitumor, antilipidemic, hypoglycemic, antibiotic, anti-inflammatory and antioxidant properties. Due to their biocompatible, nontoxic and biodegradable nature, marine polysaccharides offer a better alternative to be used in advancement of the biomedical field. This book focuses on marine polysaccharides; their derivatives, blends, composites and hydrogels; and their multifaceted applications in various fields. The book also discusses the various aspects of marine polysaccharides from the point of view of chemistry and related applications. It is an important reference for marine biotechnologists, natural product scientists, students, researchers and academicians working in the area of materials science, marine science and polymer chemistry.

Based on the International Workshop on Controlled Life-Cycle of Polymeric Materials held in Stockholm, this work examines degradable polymers and the recycling of plastic materials. It highlights recent results on recycling and waste management, including topics such as renewable resources, degradation, processing and products, and environmental issues.