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

Title data

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

Official URL: Volltext

Abstract in another language

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.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Tarry fuel gas; Catalytic upgrading; Nickel catalyst; Naphthalene; Benzene; Methane; Mass-transfer limitations
Institutions of the University: Faculties > Faculty of Engineering Science
Faculties > Faculty of Engineering Science > Chair Chemical Engineering
Faculties > Faculty of Engineering Science > Chair Chemical Engineering > Chair Chemical Engineering - Univ.-Prof. Dr.-Ing. Andreas Jess
Faculties
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
600 Technology, medicine, applied sciences > 600 Technology
600 Technology, medicine, applied sciences > 620 Engineering
600 Technology, medicine, applied sciences > 660 Chemical engineering
Date Deposited: 05 May 2015 08:29
Last Modified: 05 May 2015 08:29
URI: https://eref.uni-bayreuth.de/id/eprint/11758