Novel ammonia sorbents "porous matrix modified by active salt" for adsorptive heat transformation: 2. Calcium chloride in ACF felt

被引：35

作者：

Tokarev, M. M. ^{[1
]}

Veselovskaya, J. V. ^{[1
]}

Yanagi, H. ^{[2
]}

Aristov, Yu. I. ^{[1
]}

机构：

[1] Russian Acad Sci, Boreskov Inst Catalysis, Siberian Div, Novosibirsk 630090, Russia

[2] Cyclect Elect Engn Pte Ltd, Cynergy, Singapore 637654, Singapore

来源：

APPLIED THERMAL ENGINEERING | 2010年 / 30卷 / 8-9期

基金：

俄罗斯基础研究基金会;

关键词：

Ammonia; Calcium chloride; Activated carbon fibers; Heat transformation; Adsorption; Composites; CARBON-FIBERS; PUMP;

D O I：

10.1016/j.applthermaleng.2009.12.016

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Novel composite sorbent "31 wt.% CaCl2/ACF" was synthesised by dry impregnation of an ACF felt with a CaCl2 aqueous solution. Apparent isosters of ammonia sorption were measured at T=20-90 degrees C and P=0.1-9.0 bar by an isosteric adsorption method. The method is based on the sorbent heating in a closed volume of an adsorber with registration of the ammonia equilibrium pressure P as a function of temperature T. The uptake covered the range of 5.7-36.9 wt.%. The apparent enthalpy and entropy of the ammonia sorption as a function of ammonia uptake were obtained directly from the slop of isosteric lines InP(1/T). Appropriate correction to obtain the true sorption enthalpy was done by taking into account the "dead" volume of the adsorber. The new adsorbent was found to be an advanced material for adsorptive chilling. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：845 / 849

页数：5

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