期刊
CATALYSIS TODAY
卷 56, 期 4, 页码 431-441出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/S0920-5861(99)00302-8
关键词
DeNO(x); SO2-SO3 reactions; selective catalytic reduction
SCR-deNO(x) reaction and SO2-SO3 oxidation tests were carried out by different research groups over fresh and used EUROCAT oxide samples in order to characterize the reactivity of the catalysts and to compare data obtained in several laboratories (Politecnico of Milan, Universita of Salerno, ENEL of Milan, Boreskov Insitute of Catalysis). Data are presented which indicate that the used EUROCAT catalyst is slightly more active both in the deNO(x) reaction and SO2-SO3 oxidation than the fresh sample. An analyses of data collected over honeycomb catalysts by means of a 2D, single-channel model of the SCR monolith reactor has been performed to evaluate the intrinsic kinetic constant of the deNO(x) reaction; a satisfactory comparison has been obtained between estimation of the intrinsic kinetic constant and estimation of the intrinsic catalyst activity from data collected over powdered catalysts. A good agreement has been found in the experimental results collected in the different labs, both for the deNO(x) reaction and SO2-SO3 oxidation. (C)2000 Elsevier Science B.V. All rights reserved.
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