US EPA

857571 

Journal Article 

Simultaneous production of diacetone alcohol and mesityl oxide from acetone using reactive distillation 

Thotla, S; Agarwal, V; Mahajani, SM 

2007 

Yes 

Chemical Engineering Science
ISSN: 0009-2509 

62 

5567 

Abstract: Dimerization of acetone (Ac) yields diacetone alcohol (DAA), which on further dehydration gives mesityl oxide (MO) along with various side-products. The reacting system is a combination of various series and parallel reactions. In the present work, the reaction is studied using a cation exchange resin (Amberlyst ) as catalyst. The effect of catalyst loading and temperature on reaction kinetics was evaluated and three models based on simplified LangmuirHinselwood mechanism are proposed. Aim of the work is to minimize undesired side-products and understand the effect of different parameters and operating modes on DAA:MO product ratio in reactive distillation (RD). It has been shown that the reaction when operated in a reactive rectification mode offers flexibility in the relative production rates of DAA and MO. The experimental results obtained are explained by simulation. [Copyright &y& Elsevier] Copyright of Chemical Engineering Science is the property of Pergamon Press - An Imprint of Elsevier Science and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) 

alcohol; acetone; mesitylene; oxides; distillation; cations; dynamics; catalysts; Cation exchange resin; Diacetone alcohol; Kinetics; Mesityl oxide; Reactive distillation; Selectivity