Keynote Lectures. Coping with catalyst deactivation in hydrocarbon processing (J.W. Gosselink, J.A.R. van Veen). Diffusion, reaction and deactivation in pore networks (J. Beeckman). Industrial catalyst decay : performance at plant scale, research life-tests and accelerated decay (J.J. Birtill). Coking of solid acid catalysts and strategies for enhancing their activity (B. Subramaniam et al.). Coke Formation and its Effects. Deactivation and decoking of a naphtha reforming catalyst (A. Jess et al.). Deactivation of HY-type zeolite catalyst due to coke deposition during gas-oil cracking (T. Masuda et al.). Kinetics of catalyst coking in the hydrogenation of nitrobenzene to aniline - investigations in an isothermal catalytic wall reactor (E. Klemm et al.). Effect of contact time on the nature and location of coke during methylcyclohexane (H.S. Cerqueira et al.). Acetylene hydrogenation with a modified Ni-Zn-Al catalyst. Influence of the operating conditions on the coking rate (E. Romeo et al.). Deactivation of cobalt hydrogenation catalyst induced by carbonaceous deposits. A model and its experimental verification (J. Lojewska, R. Dziembaj). The role of water on the attenuation of coke deactivation of a SAPO-34 catalyst in the transformation of methanol into olefins (A.G. Gayubo et al.). Modelling for design of a deactivating non-isothermal propane dehydrogenation reactor (E.H. Stitt et al.). Characterization of Deactivated Catalysts. In situ infrared study of hydroxyl groups poisoned by coke formation from hydrocarbons conversion on H-zeolites (A. Vimont et al.). Surface characterization of deactivated Ni-Mo/Al2O3 catalyst using NO and SO2 as probe molecules (M. Yamazaki et al.). Characterization of the deactivation of MoO3-carbon modified supported on SiC for n-butane dehydrog
Studies in catalyst deactivation play a major role in the identification of the real catalytic system, in particular, the structure and texture of the solid, which is often in a metastable state, as it is operated in the industrial reactor. These studies also allow the identification of the experimental conditions which preserve this active and selective state. This is crucial for a real understanding of catalysts and catalysis. Another area of catalytic science concerns reactions kinetics, which, if properly determined, are of paramount importance in the elucidation of mechanisms. The behavior of the kinetics during aging and deactivation and an accurate modeling of the evolution of activity and selectivity are essential information for the process performance. These are just two typical examples, but quite generally, the science of catalyst deactivation is going to be more oriented to fundamental issues.
For scientists and industrial chemists concerned with catalyst deactivation.
- © Elsevier Science 1999
- 22nd September 1999
- Elsevier Science
- eBook ISBN:
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Laboratorium voor Petrochemische Techniek, Universiteit Gent, Ghent, Belgium