The production of Zn from ZnO in a high-temperature solar decomposition quench process - I. The scientific framework for the process

被引：148

作者：

Palumbo, R ^{[1
]}

Lede, J

Boutin, O

Ricart, EE

Steinfeld, A

Moller, S

Weidenkaff, A

Fletcher, EA

Bielicki, J

机构：

[1] Paul Scherrer Inst, Lab Energy & Proc Technol, CH-5232 Villigen, Switzerland

[2] Ecole Natl Super Ind Chim, CNRS, Lab Sci Genie Chim, F-54001 Nancy, France

[3] Univ Minnesota, Dept Mech Engn, Minneapolis, MN 55455 USA

[4] Valparaiso Univ, Dept Mech Engn, Valparaiso, IN 46383 USA

来源：

CHEMICAL ENGINEERING SCIENCE | 1998年 / 53卷 / 14期

关键词：

solar energy; solar chemistry; solar fuel; zinc; zinc oxide; decomposition; quench;

D O I：

10.1016/S0009-2509(98)00063-3

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

We present a theoretical and experimental study of a solar decomposition process for producing Zn and O-2 from ZnO(s). The decomposition step occurs at temperatures near 2000 K, and the gaseous products are quenched. A numerical model that uses the latest kinetic data for the decomposition and reoxidation reactions suggests that Zn conversions as high as 80% can be obtained with solar flux densities of 2 MW m(-2). The decomposition and quench were effected in a solar furnace and in a solar furnace simulator. Zn yields were as high as 90% depending in part on the dilution ratio and quenching surface's temperature. (C) 1998 Elsevier Science Ltd. All rights reserved.

引用

页码：2503 / 2517

页数：15

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