Upgrading waste heat from a cement plant for thermochemical hydrogen production

被引：13
|
作者：
Odukoya, A. [1 ]
Naterer, G. F. [1 ]
机构：
[1] Mem Univ Newfoundland, Fac Engn & Appl Sci, St John, NF A1B 3X5, Canada
来源：
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY | 2014年 / 39卷 / 36期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Chemical heat pump; Hydrogen; Thermochemical; Electrolysis; PUMP;
D O I：
10.1016/j.ijhydene.2014.10.096
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
A calcium oxide/steam chemical heat pump (CHP) is presented in the study as a means to upgrade waste heat from industrial processes for thermochemical hydrogen production. The CHP is used to upgrade waste heat for the decomposition of copper oxychloride (CuO.CuCl2) in a copper-chlorine (Cu-Cl) thermochemical cycle. A formulation is presented for high temperature steam electrolysis and thermochemical splitting of water using waste heat of a cement plant. Numerical models are presented for verifying the availability of energy for potential waste heat upgrading in cement plants. The optimal hydration and decomposition temperatures for the calcium oxide/steam reversible reaction of 485 K and 565 K respectively are obtained for the combined heat pump and thermochemical cycle. The coefficient of performance and overall efficiency of 4.6 and 47.8% respectively are presented and discussed for the CHP and hydrogen production from the cement plant. Copyright (c) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：20898 / 20906
页数：9
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