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Engineering aspects of industrial liquid-phase air oxidation of hydrocarbons

DSpace at IIT Bombay

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Title Engineering aspects of industrial liquid-phase air oxidation of hydrocarbons
 
Creator SURESH, AK
SHARMA, MM
SRIDHAR, T
 
Subject mass-transfer coefficients
gas hold-ups
selective oxidation
interfacial-areas
cyclohexane oxidation
elevated pressures
adipic acid
autocatalytic oxidation
catalyzed oxidation
molecular-oxygen
 
Description Liquid-phase air oxidation of hydrocarbons, notably p-xylene, cumene, ethylbenzene/isobutane, cyclohexane, and n-butane, is of great scientific, technological, and commercial importance. This state-of-the-art paper covers the chemistry and engineering science aspects of these reactions. The role of uncatalyzed reactions and metal ion and mixed metal ion catalysts with bromide activation is discussed. An analysis is presented for the role of mass transfer ill influencing the rate of reaction and selectivity for the desired product. Different types of reactors that are used, notably bubble-column reactors and mechanically agitated reactors, are analyzed, and a simple basis is provided for selection of reactors. Some emerging oxidation systems, notably oxidation of cycloalkenes ( cyclohexene/cyclooctene/cyclododecene) and oxidation of isobutane under supercritical conditions, are presented. New strategies for conducting air oxidations, such as in biphasic systems (including fluorous biphasic systems), biocatalysis, photocatalysis, etc., are emerging and illustrate the considerable tailoring of the reaction microenvironment that is becoming possible. In some cases, it may be possible to manipulate chemo-, regio-, and enantioselectivity in these reactions.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-10-14T11:40:46Z
2011-12-15T09:16:20Z
2011-10-14T11:40:46Z
2011-12-15T09:16:20Z
2000
 
Type Review
 
Identifier INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,39(11)3958-3997
0888-5885
http://dx.doi.org/10.1021/ie0002733
http://dspace.library.iitb.ac.in/xmlui/handle/10054/13910
http://hdl.handle.net/100/3112
 
Language en