Application of Design of Experiments for Catalytic Oxygen Removal over Pt/ γ ‐Al 2 O 3 Catalyst

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Within the Carbon2Chem® network, basic research is mandatory for a successful implementation and realization of sustainable technologies for CO2 emission reduction. For this purpose, the exchange of knowledge between the project partners in the individual subareas is as essential as obtaining precise data on the fundamental parameters on a laboratory scale in order to transfer them later to large‐scale plants. Therefore, the Carbon2Chem® laboratory offers a platform to gain detailed insights into the individual sub‐processes and to then apply these findings at the technical center in Duisburg.

Section: Gas Cleaning and Conditioning Of Steel Mill Process Gasesmentioning

confidence: 99%

The Carbon2Chem® Laboratory in Oberhausen – A Workplace for Lab‐Scale Setups within the Cross‐Industrial Project

Schittkowski

Zeidler‐Fandrich

Müller

et al. 2022

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New Test Setup for On‐Site Testing of Gas Cleaning Catalysts

Girod,

Wiesmann,

Suh

et al. 2024

A new catalyst test setup on miniplant‐scale was planned and built. The setup enables the use of real process gases in the environment of a steel mill or related application and the utilization of synthetic gases with a wide range of gas compositions including trace compounds to investigate the operational limits of gas cleaning catalysts. First investigations focus on oxygen removal from real coke oven gas (COG). The concept not only addresses effects of scale and heat management but also emphasizes the use of real process gases for application‐oriented catalyst development in industrial settings.

Optimization of the Process Parameters of Catalytic Oxygen Removal over CoMo/γ‐Al₂O₃ Using Design‐of‐Experiment Approaches

Suh,

Giannico,

Watermann

et al. 2024

Catalytic oxygen removal applying a commercial CoMo‐based catalyst has attracted scientific attention owing to its catalytic stability towards poisoning components and cost‐effectiveness. The catalytic performance of the CoMo catalyst was investigated using statistical optimization techniques. The H2S concentrations in the sulfidation and reaction mixture are the key factors regulating the optimal values of deoxygenation reaction. The sulfidation process is a key step to generate the active species. The catalyst remains active in the presence of sulfur compounds in the reaction mixture, which is poisoning for other catalyst systems. An increase in the H2S content enhances the catalytic activity via in‐situ sulfidation within the meaning of regeneration during the reaction. Concentrations above 450 ppm H2S in the reaction mixture result in a nearly complete oxygen conversion and ensure the catalytic stability. At the same time, an increase in the H2S content favors a high sulfidation degree resulting in the formation of active sites.