Реферат: This chapter discusses the structural and mechanistic aspects of the dehydration of isomeric butyl alcohols over porous aluminosilicate acid catalysts. Reaction pathways are found to be identical for all the butyl alcohols and the catalysts studied, with respect both to the main reaction stream and to the side reactions. However, depending on the particular structure of both the reactant and catalyst, the observed reaction rates and selectivity toward various products can be dramatically different, even under similar reaction conditions. The dehydration of butyl alcohols over solid molecular-sieve acid catalysts (HZSM-5) and amorphous aluminosilicate (AAS) catalysts mechanistically resembles homogeneous acid-catalyzed reactions, whereby carbenium ions in their classical forms serve as key reaction intermediates. For reaction mixtures consisting of molecules with dimensions close to the cross-sections of the catalyst pores (as in the case of butyl alcohol dehydration in HZSM-5), the reacting mixture may be envisaged as a liquid with dimensions less than three. A reactant may play a twofold role in catalysis, acting not only as a reactant but also as an agent that protects the active sites from becoming involved in undesirable size reactions.

Библиографическая ссылка: Zamaraev K.I. , Thomas J.M.
Structural and Mechanistic Aspects of the Dehydration of Isomeric Butyl Alcohols over Porous Aluminosilicate Acid Catalysts
Advances in Catalysis. 1996. V.41. P.335-358. DOI: 10.1016/S0360-0564(08)60043-7 WOS Scopus РИНЦ CAPlusCA OpenAlex Sciact

Даты:

Опубликована в печати:	1 янв. 1996 г.
Опубликована online:	10 апр. 2008 г.

Идентификаторы БД:

Web of science:	WOS:A1996BH77P00004
Scopus:	2-s2.0-0001336475
РИНЦ:	15534799
Chemical Abstracts:	1996:518073
Chemical Abstracts (print):	125:194748
OpenAlex:	W1630774331
Sciact:	9237

Альметрики: