In Situ NMR Studies of Alkylation Reactions on Solid Acid Catalysts PDF Download
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Author: Paul David Torres
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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Author: Paul David Torres
Publisher:
ISBN:
Category :
Languages : en
Pages : 148
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Author: Michel Che
Publisher: John Wiley & Sons
ISBN: 3527645330
Category : Technology & Engineering
Languages : en
Pages : 1313
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Book Description
This two-volume book provides an overview of physical techniques used to characterize the structure of solid materials, on the one hand, and to investigate the reactivity of their surface, on the other. Therefore this book is a must-have for anyone working in fields related to surface reactivity. Among the latter, and because of its most important industrial impact, catalysis has been used as the directing thread of the book. After the preface and a general introduction to physical techniques by M. Che and J.C. Vedrine, two overviews on physical techniques are presented by G. Ertl and Sir J.M. Thomas for investigating model catalysts and porous catalysts, respectively. The book is organized into four parts: Molecular/Local Spectroscopies, Macroscopic Techniques, Characterization of the Fluid Phase (Gas and/ or Liquid), and Advanced Characterization. Each chapter focuses upon the following important themes: overview of the technique, most important parameters to interpret the experimental data, practical details, applications of the technique, particularly during chemical processes, with its advantages and disadvantages, conclusions.
Author: Cindy Getty
Publisher:
ISBN: 9780530005058
Category : Science
Languages : en
Pages : 222
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Book Description
Abstract: The preparation and use of solid strong acid catalysts and superacids are active areas of research. Solid acids and superacids are reported to exhibit extremely high catalytic activities for reactions such as isomerization, cracking, hydrocracking, dehydration, alkylation, acylation, conversion of methanol to gasoline, and so forth. Recent research in this area has focused on the preparation of stronger solid acids and their characterization. Advantages of solid acid catalysts over liquid acid catalysts include ease of separation from reaction mixture and high selectivity or specific activity. A series of novel solid strong acids has been prepared by treatment of inorganic oxides by Lewis acids. The method of creating or enhancing the number of tetrahedral aluminum centers on inorganic oxides has led to a series of novel solid acid catalysts which displays an increased acidity over the supports alone. Investigations of acid sites by the infrared spectroscopy of adsorbed pyridine, calorimetric titrations and solid-state nuclear magnetic resonance on a series of new solid acid catalysts will be discussed. This new solid acid catalyst system exhibits high catalytic activity and selectivity for cracking reactions under relatively mild conditions. In addition to the reactions of hydrocarbons, the reactions of various polychlorinated molecules have been studied. Dissertation Discovery Company and University of Florida are dedicated to making scholarly works more discoverable and accessible throughout the world. This dissertation, "The Preparation, Characterization and Catalytic Activity of a New Sold Acid Catalyst System" by Cindy S. Getty, was obtained from University of Florida and is being sold with permission from the author. A digital copy of this work may also be found in the university's institutional repository, IR@UF. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation.
Author: Jacob Antonius Elings
Publisher: Coronet Books
ISBN:
Category : Science
Languages : en
Pages : 216
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Author: K.J. Zeitsch
Publisher: Elsevier
ISBN: 0080528996
Category : Science
Languages : en
Pages : 375
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Book Description
This book is a "world first", since the furfural industry has been traditionally secretive to the point of appearing shrouded in clouds of mystery. Even renowned encyclopedic works have published but scant and often erroneous information on the subject. Striking a healthy balance between theory and practice, the book leads the reader from reaction mechanisms and kinetics to the technology of making furfural by various old and new processes, using conventional raw materials or sulfite waste liquor. Detailed discussions of means of increasing the yield are of great chemical and technological interest as well as of immense economic importance. From furfural proper, the treatise shifts to the fascinating field of wanted and unwanted by-products ranging from largely unutilized carboxylic acids to troublesome impurities such as 5-methyl furfural and 2-furyl methyl ketone, and then to extremely valuable serendipitous flavor compounds such as diacetyl and 2,3-pentanedione. A wide variety of derivatives are discussed; considerable space is devoted to polytetrahydrofuran, an important building block of stretchable synthetic fibers, while furan resins from both furfural and furfuryl alcohol are given the attention commensurate with their industrial importance. Notable supplementary chapters cover the in-line measurement of furfural, the treatment of furfural waste water, and various aspects of corrosion. A chapter on the applications of furfural elaborates not only traditional uses in extracting petroleum and vegetable oils but also the sensational discovery that furfural is a highly effective "indirect nematocide". Without becoming toxic, it changes the microflora of the soil by stimulating bacteria antagonistic to nematodes, thereby reducing the nematode population to zero, at an unprecedented low price. It is believed that this application will be the principal outlet for furfural in the future. A comprehensive list of physical properties, some never published before, make the book an indispensable companion for producers, users and researchers alike.
Author: American Chemical Society. Division of Petroleum Chemistry
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: Alexandru Platon
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages :
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Author: A. Galarneau
Publisher: Elsevier
ISBN: 008054391X
Category : Technology & Engineering
Languages : en
Pages : 525
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Book Description
The Zeolites and Mesporous Materials at the Dawn of the 21st Century Proceedings are the expression of the oral and poster communications which where presented during the 13th International Zeolite Conference (IZC). They are subdivided into 32 thematic sessions starting from the genesis of materials to their applications through their characterisation. The paper volume contains the full texts of the 5 plenary and 6 keynote lectures and informative summaries of 150 oral and 540 poster presentations. These contributions have been selected among the 903 submissions received from a total of 57 countries! In order to gather all the communications in a handy document, the full texts of oral and poster presentations are available in CD-ROM. Besides the fields of zeolite science always represented at IZC (synthesis, characterisation, catalysis, etc¿), some subjects strengthened their position (mesoporous materials, theory and modelling), new areas emerge (advanced materials, environmental and life sciences) and older ones regain interest (natural zeolites). The understanding and development of the unique properties of porous materials relies on a unique blend of multidisciplinary knowledge: material science, with the implication of organic and colloid chemistry, to prepare micro- and mesoporous materials, surface and adsorption science sustained by theory and modelling to understand the peculiar behaviour of molecules in confined systems, special branches of catalysis, physics, chemical engineering and life science to design novel applications. The gathering of these elements is at the basis of a fruitful and evolutionary zeolite science, as it is hopefully reflected by these proceedings.
Author: Graham A. Webb
Publisher: Springer Science & Business Media
ISBN: 1402039107
Category : Technology & Engineering
Languages : en
Pages : 1889
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Book Description
A comprehensive collection of the applications of Nuclear Magnetic Resonance (NMR), Magnetic Resonance Imaging (MRI) and Electron-Spin Resonance (ESR). Covers the wide ranging disciplines in which these techniques are used: * Chemistry; * Biological Sciences; * Pharmaceutical Sciences; * Medical uses; * Marine Science; * Materials Science; * Food Science. Illustrates many techniques through the applications described, e.g.: * High resolution solid and liquid state NMR; * Low resolution NMR, especially important in food science; * Solution State NMR, especially important in pharmaceutical sciences; * Magnetic Resonance Imaging, especially important for medical uses; * Electron Spin Resonance, especially important for spin-labelling in food, marine and medical studies.
Author: Kgutso Mokoena
Publisher:
ISBN:
Category : Alkylation
Languages : en
Pages : 812
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Book Description
