Book ChapterDOI
Sulfur Poisoning of Metals
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In this paper, the authors provide an overview of the sulfur poisoning of metal catalysts and the mechanism of sulfur poisoning, and stress the importance of experimental techniques that provide definitive, fundamental information regarding sulfur adsorption and poisoning.Abstract:
Publisher Summary This chapter provides an overview of the sulfur poisoning of metals. Sulfur apparently bonds so strongly to metal surfaces that marked activity reduction occurs at extremely low gas-phase concentrations of sulfur-containing compounds. In commercial practice, the life of supported metal catalysts may be reduced to only a few months or weeks in the presence of only ppm quantities of sulfur contaminants in the feed. Because of the essentially irreversible adsorption of sulfur compounds on metals, regeneration is usually impossible or impractical. This chapter integrates available information on the interaction of sulfur with metal surfaces with that of poisoning studies to provide a more complete picture of sulfur poisoning and of the mechanism. The chapter stresses the importance of experimental techniques that provide definitive, fundamental information regarding sulfur adsorption and poisoning.read more
Citations
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Journal ArticleDOI
Mechanisms of catalyst deactivation
TL;DR: The literature treating mechanisms of catalyst deactivation is reviewed in this paper, which can be classified into six distinct types: (i) poisoning, (ii) fouling, (iii) thermal degradation, (iv) vapor compound formation accompanied by transport, (v) vapor solid and/or solid solid reactions, and (vi) attrition/crushing.
Journal ArticleDOI
Renewable Power-to-Gas: A technological and economic review
M. Götz,J. Lefebvre,Friedemann Mörs,Amy McDaniel Koch,Frank Graf,Siegfried Bajohr,Rainer Reimert,Thomas Kolb +7 more
TL;DR: In this paper, the authors compared the available electrolysis and methanation technologies with respect to the stringent requirements of the power-to-gas (PtG) chain such as low CAPEX, high efficiency, and high flexibility.
Journal ArticleDOI
Heterogeneous Catalyst Deactivation and Regeneration: A Review
TL;DR: In this article, a review on deactivation and regeneration of heterogeneous catalysts classifies deactivation by type (chemical, thermal, and mechanical) and by mechanism (poisoning, fouling, thermal degradation, vapor formation, vapor-solid and solid-solid reactions, and attrition/crushing).
Journal ArticleDOI
Surface chemistry of catalysis by gold
Journal ArticleDOI
Physical and chemical properties of bimetallic surfaces
TL;DR: In this paper, the structural, electronic, chemical and catalytic properties of well-defined bimetallic surfaces are reviewed and a very good correlation is found between the electronic perturbations in a bimetal system and its cohesive energy.
References
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Book
Introduction to solid state physics
TL;DR: In this paper, the Hartree-Fock Approximation of many-body techniques and the Electron Gas Polarons and Electron-phonon Interaction are discussed.
Book
Thermochemical properties of inorganic substances
Ihsan Barin,Ottmar Knacke +1 more
TL;DR: In this paper, a volume of tables conveying the thermochemical parameters of more than 2000 substances, cover enthalpy, entropy, chemical potential and Planck's function, and commentaries on the chemical reactions of the relevant component and indications of stability/metastability.