Mass Transfer In The Catalytic Liquid Phase Hydrogeneration Of Alpha Methylstyrene In A Stirred Reactor
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Mass Transfer In The Catalytic Liquid Phase Hydrogenation Of Alpha Methylstyrene In A Stirred Reactor
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Author : Jacob David Polejes
language : en
Publisher:
Release Date : 1959
Mass Transfer In The Catalytic Liquid Phase Hydrogenation Of Alpha Methylstyrene In A Stirred Reactor written by Jacob David Polejes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1959 with Chemical reactions categories.
Catalytic Hydrogenation Of Alpha Methylstyrene In Liquid Phase In Stirred Reactor
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Author : Douglas Lewellyn Johnson
language : en
Publisher:
Release Date : 1956
Catalytic Hydrogenation Of Alpha Methylstyrene In Liquid Phase In Stirred Reactor written by Douglas Lewellyn Johnson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1956 with Benzene categories.
Mass Transfer In The Catalytic Liquid Phase Hydrogeneration Of Alpha Methylstyrene In A Stirred Reactor
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Author :
language : en
Publisher:
Release Date : 1985
Mass Transfer In The Catalytic Liquid Phase Hydrogeneration Of Alpha Methylstyrene In A Stirred Reactor written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.
Mass Transfer With Chemical Reaction In Multiphase Systems
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Author : E. Alper
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-11
Mass Transfer With Chemical Reaction In Multiphase Systems written by E. Alper and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-11 with Science categories.
The phenomenon of "mass transfer with chemical reaction" takes place whenever one phase is brought into contact with one or more other phases not in chemical equilibrium with it. This phenomenon has industrial, biological and physiological importance. In chemical process engineering, it is encountered in both separ ation processes and reaction engineering. In some cases, a chemical reaction may deliberately be employed for speeding up the rate of mass transfer and/or for increasing the capacity of the solvent; in other cases the multiphase reaction system is a part of the process with the specific aim of product formation. Finally, in some cases, for instance "distillation with chemical reaction", both objectives are involved. Although the subject is clearly a chemical engineering undertakin~, it requires often a good understanding of other subjects, such as chemistry and fluid mechanics etc., leading to publications in diversified areas. On the other har.d, the subject has always been a major field and one of the most fruitful for chemical engineers.
Kinetics Of The Hydrogenation Of Alpha Methylstyrene In Fixed Beds
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Author : Byron Dale Babcock
language : en
Publisher:
Release Date : 1955
Kinetics Of The Hydrogenation Of Alpha Methylstyrene In Fixed Beds written by Byron Dale Babcock and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1955 with Hydrocarbons categories.
Mass Transfer With Chemical Reaction In Multiphase Systems Two Phase Systems
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Author : Erdoğan Alper
language : en
Publisher:
Release Date : 1983
Mass Transfer With Chemical Reaction In Multiphase Systems Two Phase Systems written by Erdoğan Alper and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1983 with Science categories.
The phenomenon of "mass transfer with chemical reaction" takes place whenever one phase is brought into contact with one or more other phases not in chemical equilibrium with it. This phenomenon has industrial, biological and physiological importance. In chemical process engineering, it is encountered in both separ ation processes and reaction engineering. In some cases, a chemical reaction may deliberately be employed for speeding up the rate of mass transfer and/or for increasing the capacity of the solvent; in other cases the multiphase reaction system is a part of the process with the specific aim of product formation. Finally, in some cases, for instance "distillation with chemical reaction," both objectives are involved. Although the subject is clearly a chemical engineering undertakin, it requires often a good understanding of other subjects, such as chemistry and fluid mechanics etc., leading to publications in diversified areas. On the other har.d, the subject has always been a major field and one of the most fruitful for chemical engineers."
Selective Hydrogenation Of Alpha Beta Unsaturated Aldehydes Towards Clean Synthesis Over Noble Metal Catalysts In Mass Transfer Efficient Three Phase Reactors
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Author : Laiqi Zhang
language : en
Publisher:
Release Date : 1998
Selective Hydrogenation Of Alpha Beta Unsaturated Aldehydes Towards Clean Synthesis Over Noble Metal Catalysts In Mass Transfer Efficient Three Phase Reactors written by Laiqi Zhang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with categories.
The hydrodynamics and mass transfer characteristics of a concurrent downflow contactor (CDC) are studied in this work in order to investigate the viability of this bubble column as a catalytic reactor for the hydrogenation of ?,?-unsaturated aldehydes. Oxygen/water was used as the system throughout. In order to obtain reproducible results, a very effective gas-liquid separation method was conceived and developed after much trial and error work. Shutdown and deadleg gas holdup measuring methods were compared and it was found that the shutdown method is more reliable than the deadleg method. The hydrogenation of cinnamaldehyde using both in-house-prepared and commercial palladium, platinum and ruthenium catalysts was carried out in stirred tank reactors and cocurrent downflow reactors in order to study the kinetics and mass transfer characteristics and the selectivity towards the corresponding desired product, hydrocinnamaldehyde or cinnamyl alcohol. When palladium catalysts were used the desired product was hydrocinnamaldehyde. The effects of homogenous reactions, type of solvent, catalyst loading, temperature, pressure, reactant concentration and the effects of promoter or poison on the selectivity towards hydrocinnamaldehyde were investigated systematically. Aldehyde acetals were produced in polar solvents, but not in non-polar solvents. Two methods can be used to obtain hydrocinnamaldehyde selectivity without reduction of the carbonyl double bond: (1) by using non-polar solvents such as toluene; (2) by incorporating poisons or promoters into the reactant solution or onto the surface of the catalysts. 97% selectivity to hydrocinnamaldehyde was achieved. The effects of the solvent, temperature, pressure, catalyst loading, promoters, and reactants concentration on the kinetics were studied and the following reaction kinetics are proposed for the hydrogenation of cinnamaldehyde over non-modified palladium/charcoal catalysts in propan-2-ol and in toluene: Ra = kC\(-{Cat}\)C\(-{H2}\)C\( 0-{CAL}\) The apparent activation energy varies with themperature range in propan-2-ol and is 65\(\pm\)5 kJ.mol\( {-1}\) in toluene.
Methanol Synthesis Technology
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Author : Sunggyu Lee
language : en
Publisher: CRC Press
Release Date : 1989-12-04
Methanol Synthesis Technology written by Sunggyu Lee and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989-12-04 with Science categories.
This easy-to-read work is a comprehensive review which focuses primarily on catalytic methanol synthesis. It includes a historic summary of the development of methanol synthesis technology, as well as extensive discussions on statistical experimental design, fabrication and operation of laboratory scale systems. This unique volume also discusses various new catalysts and processes, with special attention to the thermodynamics of methanol synthesis-especially in relation to the new liquid phase process. The comprehensive and practical approach to chemical and synfuel process development makes it an excellent reference in methanol synthesis, reactor design, and scale-up. Written as a practical guide to researchers who are involved in hands-on process research, this book is also a valuable asset to practicing chemical engineers and graduate students interested in reaction engineering, thermodynamics, catalyst development and process design.
Effects Of Mass Transfer In Liquid Phase Catalytic Consecutive Hydrogenation Of 2 6 Dinitrotoluene
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Author : Füsun Yücelen
language : en
Publisher:
Release Date : 1984
Effects Of Mass Transfer In Liquid Phase Catalytic Consecutive Hydrogenation Of 2 6 Dinitrotoluene written by Füsun Yücelen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Gradientless Hydrogenation Kinetics In A Slurry Reactor
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Author : Rostam Jal Madon
language : en
Publisher:
Release Date : 1975
Gradientless Hydrogenation Kinetics In A Slurry Reactor written by Rostam Jal Madon and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Cyclohexane categories.