Experimental Study on the Liquid-Phase Adsorption Equilibrium of n-Butanol over Amberlyst™15 and Contribution of Diffusion Resistances

被引：3

作者：

Soto, Rodrigo ^{[1
,2
]}

Oktar, Nuray ^{[3
]}

Fite, Carles ^{[2
]}

Ramirez, Eliana ^{[2
]}

Bringue, Roger ^{[2
]}

Tejero, Javier ^{[2
]}

机构：

[1] Univ Limerick, Synth & Solid State Pharmaceut Ctr SSPC, Dept Chem & Environm Sci, Limerick V94 T9PX, Ireland

[2] Univ Barcelona, Dept Chem Engn & Analyt Chem, Marti & Franques 1-11, Barcelona 08028, Spain

[3] Gazi Univ, Dept Chem Engn, TR-06570 Ankara, Maltepe, Turkey

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2021年 / 44卷 / 12期

关键词：

Adsorption; Amberlyst (TM) 15; Butanol; Diffusion resistance; Moment technique; ION-EXCHANGE-RESINS; DYNAMIC-ANALYSIS; LEVULINIC ACID; BUTYL ETHER; ETHYL LEVULINATE; METHYLENE-BLUE; ETHANOL; ETHERIFICATION; ESTERIFICATION; DEHYDRATION;

D O I：

10.1002/ceat.202100253

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

This work investigates the liquid-phase adsorption of n-butanol on Amberlyst (TM) 15 in the temperature range 295-323 K at different initial adsorbate concentrations. The adsorbent was characterized by N-2 physisorption, Fourier transform infrared adsorption of pyridine, scanning electron microscopy, and powder X-ray diffraction. The data obtained confirmed an adsorbent structure with two porosity levels and amorphous polymer structure. The active sites in Amberlyst (TM) 15 are of Bronsted or Bronsted-Lewis type. The liquid-phase adsorption equilibrium constants were determined at different temperatures from slurry adsorber experiments. The thermodynamic state functions were estimated and are consistent thermodynamically with physical adsorption. The macropore diffusion coefficients of n-butanol on Amberlyst (TM) 15 were estimated by using the moment technique, and the contribution of surface diffusion to the macropore diffusion coefficients was evaluated.

引用

页码：2210 / 2219

页数：10

共 55 条

[11] DYNAMIC ANALYSIS OF ADSORPTION ON BIDISPERSE POROUS CATALYSTS [J].