Catalytic Oxidation of Ammonia and Other Nitrogen Containing Compounds to Nitrogen, Water and Carbon Dioxide PDF Download
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Author: Finbarr O'Regan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Finbarr O'Regan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author:
Publisher:
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Category :
Languages : en
Pages :
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The results of the catalytic oxidation in supercritical water of two non-biodegradable and highly toxic nitrogen-containing organic compounds (DBU and quinoline) are presented. The reactions were studied in a tubular xed-bed reactor over three catalysts: Pt/Al\(_2\)O\(_3\), CuO/Al \(_2\)O\(_3\) and MnO\(_2\)/CuO. The effect of operating conditions, namely temperature, pressure, oxygen concentration and initial concentration of the organic compounds were studied to evaluate their influence on its removal. Reaction rates were calculated from the experimental data collected. In addition, the selectivities and stabilities of the catalysts were investigated. Before conducting the experimental study the isothermal and isobaric operation of the reactor was veried together with the complete decomposition of hydrogen peroxide to oxygen and water in the preheating section and the reproducibility of experimental data was verified. Absence of external concentration gradients was determined experimentally for each reaction. The results showed that temperature was the main controlling variable of the catalytic oxidation. On the contrary, the effect of pressure depended on the catalyst used. Increasing the concentration of the organic compound did not aect their oxidation. Meanwhile, oxygen concentration above a stoichiometric ratio of two did not considerably improve the reaction. A power-law kinetic model was proposed to quantify the oxidation reaction. Three Langmuir-Hinshelwood-Hougen-Watson reaction rates were also explored to the experimental data. In the absence of a specic reaction mechanism the kinetic data were best represented by the power-law kinetic model. CO2 was the main carbon product of the reaction with small amounts of inorganic carbon species dissolved in the liquid effluent. Meanwhile, NH\(_4\), NO\(_3\) and NO\(_2\) ions were the only nitrogen species detected in the liquid effluent. Pt/Al\(_2\)O\(_3\) proved to be the most effective catalyst because it promo.
Author: Mauricio Julio Angeles Hernández
Publisher:
ISBN:
Category :
Languages : en
Pages : 294
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Author: Mauricio Julio Angeles Hernández
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Jihong Yu
Publisher: Elsevier
ISBN: 0443161410
Category : Technology & Engineering
Languages : en
Pages : 462
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Introduction to Condensed Matter Chemistry offers a general view of chemistry from the perspective of condensed matter chemistry, analyzing and contrasting chemical reactions in a more realistic setting than traditional thinking. Readers will also find discussions on the goals and major scientific questions in condensed matter chemistry and the molecular engineering of functional condensed matter. Processes and products of chemical reactions should not be determined solely by the structure and composition of these basic species but also by the complex and possibly multilevel structured physical and chemical environment, together referred to as their condensed state. Relevant matters in condensed state should be the main bodies of chemical reactions, which is applicable not only to solids and liquids but also to gas molecules as reactions among gas molecules can take place only in the presence of catalysts in specific condensed states or after their state transition under extreme reaction conditions. This book provides new insights on the liquid state chemistry, definitions, aspects, and interactions, summarizing fundamentals of main chemical reactions from a new perspective. - Helps to establish the new field of Condensed Matter Chemistry - Highlights the molecular engineering of functional condensed matter - Focuses on both liquid and solid state chemistry
Author: Stanley Falkow
Publisher: Springer Science & Business Media
ISBN: 0387254927
Category : Science
Languages : en
Pages : 1157
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The revised Third Edition of The Prokaryotes, acclaimed as a classic reference in the field, offers new and updated articles by experts from around the world on taxa of relevance to medicine, ecology and industry. Entries combine phylogenetic and systematic data with insights into genetics, physiology and application. Existing entries have been revised to incorporate rapid progress and technological innovation. The new edition improves on the lucid presentation, logical layout and abundance of illustrations that readers rely on, adding color illustration throughout. Expanded to seven volumes in its print form, the new edition adds a new, searchable online version.
Author: Leroy Frank Marek
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 506
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Author: Raymond D. Harbison
Publisher: John Wiley & Sons
ISBN: 0470929731
Category : Science
Languages : en
Pages : 1364
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Book Description
Providing a concise, yet comprehensive, reference on all aspects of industrial exposures and toxicants; this book aids toxicologists, industrial hygienists, and occupational physicians to investigate workplace health problems. • Updates and expands coverage with new chapters covering regulatory toxicology, toxicity testing, physical hazards, high production volume (HPV) chemicals, and workplace drug use • Includes information on occupational and environmental sources of exposure, mammalian toxicology, industrial hygiene, medical management and ecotoxicology • Retains a succinct chapter format that has become the hallmark for the previous editions • Distils a vast amount of information into one resource for both academics and professionals
Author: Lu Gang
Publisher:
ISBN: 9789038626536
Category :
Languages : en
Pages : 135
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Author: Sandra Lenihan
Publisher:
ISBN:
Category :
Languages : en
Pages :
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