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Reduction of CO$_{2}$ Emission from Off-Gases of Steel Industry by Dry Reforming of Methane

Angeli, Sofia D. 1; Gossler, Sabrina 1; Lichtenberg, Sven 1; Kass, Gilles; Agrawal, Anand Kumar; Valerius, Miriam; Kinzel, Klaus Peter; Deutschmann, Olaf ORCID iD icon 1
1 Institut für Technische Chemie und Polymerchemie (ITCP), Karlsruher Institut für Technologie (KIT)

Abstract:

In a novel process, CO$_{2}$ and CH$_{4}$ from the off‐gases of the coke oven and blast furnace are used in homogeneous reforming of those greenhouse gases to valuable syngas, a mixture of H$_{2}$ and CO. Synthetic mixtures of the off‐gases from those large apparatuses of steel industry are fed to a high‐temperature, high‐pressure flow reactor at varying temperature, pressure, residence time, and mixing ratio of coke oven gas (COG) to blast furnace gas (BFG). In this study, a maximal reduction of 78.5 % CO$_{2}$ and a CH$_{4}$ conversion of 95 % could be achieved at 1350 °C, 5.5 bar, and a COG/BFG ratio of 0.6. Significant carbonaceous deposits were formed but did not block the reactor tube in the operational time window allowing cyclic operation of the process. These measurements were based on prior thermodynamic analysis and kinetic predictions using an elementary‐step reaction mechanism.


Verlagsausgabe §
DOI: 10.5445/IR/1000132367
Veröffentlicht am 06.05.2021
Originalveröffentlichung
DOI: 10.1002/anie.202100577
Scopus
Zitationen: 26
Web of Science
Zitationen: 21
Dimensions
Zitationen: 26
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Technische Chemie und Polymerchemie (ITCP)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 1433-7851, 0570-0833, 1521-3773
KITopen-ID: 1000132367
Erschienen in Angewandte Chemie - International Edition
Verlag John Wiley and Sons
Band 60
Heft 21
Seiten 11852-11857
Schlagwörter blast furnace gas (BFG); CO2 emissions reduction; coke oven gas (COG); dry reforming; steelwork off-gas valorisation
Nachgewiesen in Dimensions
Scopus
Web of Science
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