Adsorption of C6-C8 Aromatics over Ba-Exchanged Zeolite X at High Temperature

被引：5

作者：

Shi, Qian ^{[1
]}

Goncalves, Jonathan C. ^{[1
]}

Ferreira, Alexandre F. P. ^{[1
]}

Rodrigues, Alirio E. ^{[1
]}

机构：

[1] Univ Porto, Lab Separat & React Engn, Lab Catalysis & Mat, Dept Chem Engn,Fac Engn, Rua Dr Roberto Frias S-N, P-4200465 Porto, Portugal

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 2019年 / 42卷 / 11期

关键词：

Adsorption; Benzene; Faujasite-type zeolite; Toluene; Xylene isomers; MOVING-BED REACTOR; P-XYLENE; EQUILIBRIUM; SEPARATION; ISOMERIZATION; KINETICS; BENZENE; HYDROCARBONS; ISOTHERMS; DIFFUSION;

D O I：

10.1002/ceat.201900353

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The adsorption of C-6-C-8 aromatics was investigated at higher temperatures than normally used in the industry in the absence of water to assess the adsorption equilibrium properties under conditions that can be suitable for a simulated moving-bed reactor for the production of p-xylene. Batch experiments were conducted on a dry Ba-exchanged zeolite X at various temperatures in the liquid phase. Pseudo-single-component adsorption equilibrium isotherms from binary mixtures with i-octane were obtained based on the adsorbed amount with different initial concentrations. The Langmuir model was applied to describe the adsorption equilibrium data. The estimated parameters predicted very well the equilibrium in the adsorbent.

引用

页码：2410 / 2418

页数：9

共 43 条

[1] Catalyst deactivation by coke in the transformation of aqueous ethanol into hydrocarbons. Kinetic modeling and acidity deterioration of the catalyst [J].