N-Alkylation of aniline with ethanol over HY and dealuminated HY zeolites

Vapor phase alkylation of aniline with ethanol is studied over HY and ultrastable Y zeolites produced by Multi Step Temperature Programmed (MSTP) steaming procedure. N-Alkylation is the predominant product over all the temperature studied and the major product being N-ethylaniline (NEA). The degree...

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Bibliographic Details
Published inApplied catalysis. A, General Vol. 242; no. 1; pp. 171 - 177
Main Authors Anand, R, Khaire, S.S, Maheswari, R, Gore, K.U, Chumbhale, V.R
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 10.03.2003
Elsevier
Subjects
Acidity
Alkylation
Aniline
Catalysis
Chemistry
Dealumination
Exact sciences and technology
General and physical chemistry
Ion-exchange
Surface physical chemistry
Theory of reactions, general kinetics. Catalysis. Nomenclature, chemical documentation, computer chemistry
TPD
Zeolites
Zeolites: preparations and properties
TPD
Dealumination
Acidity
Aniline
Zeolites
Alkylation
Ethanol
Alkanol
Alcohol
Zeolite
Molecular sieve
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Summary:Vapor phase alkylation of aniline with ethanol is studied over HY and ultrastable Y zeolites produced by Multi Step Temperature Programmed (MSTP) steaming procedure. N-Alkylation is the predominant product over all the temperature studied and the major product being N-ethylaniline (NEA). The degree of dealumination and the steaming temperature influences aniline alkylation activity. HY zeolite steamed at moderate temperature (550–700 °C) improves the aniline conversion and yield of N-ethylaniline. The influence of temperature, feed rate, and molar ratio on activity and selectivity of the products are investigated.
ISSN:0926-860X
1873-3875
DOI:10.1016/S0926-860X(02)00502-1