Kinetics of the Liquid Phase Dehydration of 1-Octanol to Di-n-Octyl Ether on Amberlyst 70

被引：6
作者：
Casas, Carlos [1 ]
Bringue, Roger [1 ]
Fite, Carles [1 ]
Iborra, Montserrat [1 ]
Tejero, Javier [1 ]
机构：
[1] Univ Barcelona, Fac Chem, Dept Chem Engn, E-08028 Barcelona, Spain
来源：
AICHE JOURNAL | 2017年 / 63卷 / 09期
关键词：
reaction kinetics; 1-octanol dehydration; di-n-octyl ether; Amberlyst; 70; reaction rate inhibition by water; TERT-BUTYL ETHER; SHEET SILICATES; EXCHANGE-RESINS; ETHANOL; ALCOHOLS; ETHERIFICATION; 1-PENTANOL; BUTANOL; WATER; EQUILIBRIUM;
D O I：
10.1002/aic.15741
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The kinetics of the liquid phase dehydration of 1-octanol to di-n-octyl ether (DNOE) over Amberlyst 70 was studied at 413-453 K. Mechanistic rate models assuming water and 1-octanol adsorbed on the resin, and the free sites fraction negligible, were selected from 1-octanol dehydration experiments. Next, the influence of DNOE, water, and 1,4-dioxane (solvent) concentration was evaluated. DNOE and 1,4-dioxane do not affect significantly the reaction rate, while water inhibits it strongly. Water effect was quantified by splitting the rate constant into a true one and a correction factor related to the fraction of active sites blocked by water. The best kinetic model stemmed from an Eley-Rideal mechanism with water adsorbed onto the resin and DNOE released directly to the liquid phase, with a correction factor for water inhibitory effect based on a Freundlich isotherm-like function; activation energy being 110 +/- 5 kJ.mol(-1), in line with literature data on homologous reactions. (C) 2017 American Institute of Chemical Engineers
引用
收藏
页码：3966 / 3978
页数：13
相关论文
共 50 条
[1]  
Adamson A. V., 1990, PHYS CHEM SURFACES
[2]   Kinetic Study of 1-Butanol Dehydration to Di-n-butyl Ether over Amberlyst 70 [J].
Angeles Perez-Macia, Maria ;
Bringue, Roger ;
Iborra, Montserrat ;
Tejero, Javier ;
Cunill, Fidel .
AICHE JOURNAL, 2016, 62 (01) :180-194
[3]   CHEMICAL CONVERSIONS USING SHEET SILICATES - NOVEL INTERMOLECULAR DEHYDRATIONS OF ALCOHOLS TO ETHERS AND POLYMERS [J].
BALLANTINE, JA ;
DAVIES, M ;
PURNELL, H ;
RAYANAKORN, M ;
THOMAS, JM ;
WILLIAMS, KJ .
JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1981, (09) :427-428
[4]   ORGANIC-REACTIONS CATALYZED BY SHEET SILICATES - ETHER FORMATION BY THE INTERMOLECULAR DEHYDRATION OF ALCOHOLS AND BY ADDITION OF ALCOHOLS TO ALKENES [J].
BALLANTINE, JA ;
DAVIES, M ;
PATEL, I ;
PURNELL, JH ;
RAYANAKORN, M ;
WILLIAMS, KJ ;
THOMAS, JM .
JOURNAL OF MOLECULAR CATALYSIS, 1984, 26 (01) :37-56
[5]   Water effect on the kinetics of 1-pentanol dehydration to di-n-pentyl ether (DNPE) on amberlyst 70 [J].
Bringue, R. ;
Tejero, J. ;
Iborra, M. ;
Izquierdo, J. F. ;
Fite, C. ;
Cunill, F. .
TOPICS IN CATALYSIS, 2007, 45 (1-4) :181-186
[6]   Kinetics of 1-hexanol etherification on Amberlyst 70 [J].
Bringue, R. ;
Ramirez, E. ;
Iborra, M. ;
Tejero, J. ;
Cunill, F. .
CHEMICAL ENGINEERING JOURNAL, 2014, 246 :71-78
[7]   Experimental study of the chemical equilibria in the liquid-phase dehydration of 1-pentanol to di-n-pentyl ether [J].
Bringue, Roger ;
Tejero, Javier ;
Iborra, Montserrat ;
Felipe Izquierdo, Jose ;
Fite, Carles ;
Cunill, Fidel .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2007, 46 (21) :6865-6872
[8]   Kinetics of 1-Pentanol Etherification without Water Removal [J].
Bringue, Roger ;
Ramirez, Eliana ;
Fite, Carles ;
Iborra, Montserrat ;
Tejero, Javier .
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (13) :7911-7919
[9]   Study of the Chemical Equilibrium of the Liquid-Phase Dehydration of 1-Hexanol to Dihexyl Ether [J].
Bringue, Roger ;
Tejero, Javier ;
Iborra, Montserrat ;
Fite, Carles ;
Felipe Izquierdo, Jose ;
Cunill, Fidel .
JOURNAL OF CHEMICAL AND ENGINEERING DATA, 2008, 53 (12) :2854-2860
[10]   THE CONCEPT OF VARIABLE ACTIVE-CENTERS IN ACID CATALYSIS .1. ALKYLATION OF BENZENE WITH OLEFINS CATALYZED BY ION-EXCHANGE RESINS [J].
BUTTERSACK, C ;
WIDDECKE, H ;
KLEIN, J .
JOURNAL OF MOLECULAR CATALYSIS, 1986, 38 (03) :365-381
12345