Kinetics of SO 2  Removal from Flue Gas on CuO/Al 2 O 3  Sorbent Catalyst | Zendy

Jia Z. H. | Zendy; Liu Z. Y. | Zendy; Zhao Y. H. | Zendy

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Kinetics of SO 2 Removal from Flue Gas on CuO/Al 2 O 3 Sorbent Catalyst

Author(s) -

Jia Z. H.,

Liu Z. Y.,

Zhao Y. H.

Publication year - 2007

Publication title -

chemical engineering and technology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.403

H-Index - 81

eISSN - 1521-4125

pISSN - 0930-7516

DOI - 10.1002/ceat.200700139

Subject(s) - sorbent , adsorption , catalysis , chemistry , kinetics , flue gas , langmuir adsorption model , chemical kinetics , analytical chemistry (journal) , thermodynamics , chemical engineering , chromatography , physics , organic chemistry , quantum mechanics , engineering

The dependence of SO 2 removal on Cu loading, SO 2 concentration, and temperature are studied experimentally on a thermo‐balance using a series of CuO/Al 2 O 3 catalysts in the fresh state as well as in a NH 3 ‐regenerated state. A kinetic study on SO 2 removal is then carried out using a surface model, which assumes the SO 2 removal rate is being controlled by a surface chemical reaction and takes into account the effect of SO 2 adsorption and consumption of surface CuO. The difference in SO 2 removal between fresh and regenerated CuO/Al 2 O 3 is expressed by a parameter n , which is similar to the order of a reaction. The effect of SO 2 adsorption is expressed in the Langmuir‐Hinshelwood form. The results show that the SO 2 removal behavior of NH 3 ‐regenerated CuO/Al 2 O 3 is different from that of fresh CuO/Al 2 O 3 and the developed model describes the SO 2 removal behavior well.

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