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Steel mills as syngas source for methanol synthesis

Simulation and practical performance investigations
: Girod, Kai; Breitkreuz, Klaas; Hennig, Torsten; Lohmann, Heiko; Kaluza, Stefan; Schlüter, Stefan

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Chemical engineering transactions 74 (2019), pp.475-480
ISSN: 2283-9216
ISSN: 1974-9791
Bundesministerium für Bildung und Forschung BMBF (Deutschland)
Journal Article, Electronic Publication
Fraunhofer UMSICHT Oberhausen ()
steel mill gas; methanol synthesis; Syngas

In the present contribution, the utilization of steel-mill gases for an industrial methanol synthesis process is described. The focus of this work is on the influence of syngas compositions derived from steel-mill gases on an industrial Cu/ZnO/Al2O3 catalyst. Elevated CO2 and H2O concentrations seem to have an irreversible impact on the activity of the catalyst. In order to obtain realistic gas composition for the catalyst tests, a process simulation of the methanol synthesis was conducted. The calculated gas compositions at the reactor inlet were applied in a practical test in order to evaluate the catalyst stability under steel mill gas conditions. No noticeable deactivation was observed.