Design of photocatalytic reactors made easy by considering the photons as immaterial reactants

被引:30
作者
Camera-Roda, G
Santarelli, F
Martin, CA
机构
[1] Univ Bologna, Dipartimento Ingn Chim Mineraria & Tecnol Ambient, I-40136 Bologna, Italy
[2] Univ Nacl Litoral, CONICET, INTEC, RA-3000 Santa Fe, Argentina
关键词
photocatalysis; reactor design; photons; kinetic analysis; efficiencies; titanium dioxide;
D O I
10.1016/j.solener.2005.02.025
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
While it is quite obvious that photons have an essential role in photochemical and photocatalytic processes, it is not simple to analyse the radiation process. A simple approach is presented on the assumption that photons can be treated as immaterial reactants. It is then possible to evaluate the radiation process in terms of parameters such as conversion, selectivity and yield, which are common in the conventional reaction engineering, and of an additional parameter, a volume efficiency factor, which accounts for the exploitation of the reaction volume as the result of the inevitable attenuation of the radiation in the transport through the participating medium. Attention has also been focused on the validation of kinetic data when, as it is usually done, they are interpreted in terms of volume averages. Finally, guidelines have been prepared to support preliminary phases of analysis and/or design of a photocatalytic reactor. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:343 / 352
页数:10
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