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Catalytic upgrading of tarry fuel gases : A kinetic study with model components

Titelangaben

Jess, Andreas:
Catalytic upgrading of tarry fuel gases : A kinetic study with model components.
In: Chemical Engineering and Processing. Bd. 35 (1996) Heft 6 . - S. 487-494.
ISSN 1873-3204
DOI: https://doi.org/10.1016/S0255-2701(96)04160-8

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Link zum Volltext (externe URL): Volltext

Abstract

As a contribution to the development of a process for catalytic upgrading of tarry fuel gases, e.g. coke-oven gas, the conversion of naphthalene, benzene and methane on a nickel catalyst in the presence of H2 and H2O was studied. The experiments were performed in a tubular flow reactor (total pressure: 1.6 bar; residence time with respect to the empty reactor: 0.3 s; temperature: 400–950°C; and particle diameter of catalyst: 1.5 mm). The kinetic data were obtained by systematic variation of the reaction conditions. At temperatures of more than 800°C, each hydrocarbon is cracked and converted with H2O to CO and H2. Soot formation does not occur at any temperature. In case of simultaneous conversion of all three hydrocarbons, competitive reactions have to be considered. The rate of chemical reaction on the catalyst is substantially decreased in the presence of H2S. Nevertheless, in a reactor of industrial scale, H2S has only slight influence. The catalyst would be applied with a particle diameter of 19 mm (experiments: 1.5 mm), and the overall reaction rate of hydrocarbon conversion is significantly affected by gas film diffusion.

Weitere Angaben

Publikationsform: Artikel in einer Zeitschrift
Begutachteter Beitrag: Ja
Keywords: Tarry fuel gas; Catalytic upgrading; Nickel catalyst; Naphthalene; Benzene; Methane; Mass-transfer limitations
Institutionen der Universität: Fakultäten > Fakultät für Ingenieurwissenschaften
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Chemische Verfahrenstechnik
Fakultäten > Fakultät für Ingenieurwissenschaften > Lehrstuhl Chemische Verfahrenstechnik > Lehrstuhl Chemische Verfahrenstechnik - Univ.-Prof. Dr.-Ing. Andreas Jess
Fakultäten
Titel an der UBT entstanden: Nein
Themengebiete aus DDC: 500 Naturwissenschaften und Mathematik > 540 Chemie
600 Technik, Medizin, angewandte Wissenschaften > 600 Technik
600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften
600 Technik, Medizin, angewandte Wissenschaften > 660 Chemische Verfahrenstechnik
Eingestellt am: 05 Mai 2015 08:29
Letzte Änderung: 05 Mai 2015 08:29
URI: https://eref.uni-bayreuth.de/id/eprint/11758