Adsorption kinetics and isotherms of zeolite coatings directly crystallized on fibrous plates for heat pump applications

被引：27

作者：

Atakan, Aylin ^{[1
]}

Fueldner, Gerrit ^{[2
]}

Munz, Gunther ^{[2
]}

Henninger, Stefan ^{[2
]}

Tatlier, Melkon ^{[1
]}

机构：

[1] Istanbul Tech Univ, Dept Chem Engn, TR-34469 Istanbul, Turkey

[2] Fraunhofer Inst Solar Energy Syst, D-79110 Freiburg, Germany

来源：

APPLIED THERMAL ENGINEERING | 2013年 / 58卷 / 1-2期

关键词：

Zeolite; Coating; Fiber; Adsorption kinetics; Isotherm; 4A COATINGS; MASS;

D O I：

10.1016/j.applthermaleng.2013.04.037

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Zeolite A coatings were grown on porous fibrous metal plates by using the substrate heating synthesis method. The coatings prepared were characterized by X-ray diffraction (XRD) and laser microscopy. Kinetic measurements were performed to determine the rates of adsorption of these materials while their adsorption isotherms were obtained by thermogravimetry (TG). The overall adsorption kinetics varied with the different samples investigated. The zeolite A coating grown on a copper fibrous support generally exhibited superior overall adsorption kinetics compared to a zeolite X coating with close mass, prepared previously on a stainless steel flat plate. The coating thickness as well as the support properties affected the performances of the samples. The inclusion of an additional polymer layer exhibited adverse impact on the kinetics especially after relatively high normalized loadings. The adsorption isotherms obtained for the zeolite coatings on fibrous supports were quite typical for zeolite A while the addition of polymer changed the isotherm type. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：273 / 280

页数：8

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