Hydrogen intensified synthesis processes to valorise process off-gases in integrated steelworks

Matino I, Dettori S, Conde AS, Colla V, Petrucciani A, Zaccara A, Iannino V, Mocci C, Hauser A, Kolb S, Karl J, Haag S, Bampaou M, Panopoulos K, Heracleous E, Kieberger N, Rechberger K, Róg L, Rompalski P, Wolf-Zoellner P (2023)

Publication Type: Journal article

Publication year: 2023

Journal

Materiaux et Techniques EDP Sciences

Book Volume: 111

Article Number: 204

Journal Issue: 2

DOI: 10.1051/mattech/2023025

Abstract

Integrated steelworks off-gases are generally exploited to produce heat and electricity. However, further valorization can be achieved by using them as feedstock for the synthesis of valuable products, such as methane and methanol, with the addition of renewable hydrogen. This was the aim of the recently concluded project entitled Intelligent and integrated upgrade of carbon sources in steel industries through hydrogen intensified synthesis processes (i3upgrade). Within this project, several activities were carried out: from laboratory analyses to simulation investigations, from design, development and tests of innovative reactor concepts and of advanced process control to detailed economic analyses, business models and investigation of implementation cases. The final developed methane production reactors are, respectively, an additively manufactured structured fixed-bed reactor and a reactor setup using wash-coated honeycomb monoliths as catalyst; both reactors reached almost full COx conversion under slightly over-stoichiometric conditions. A new multi-stage concept of methanol reactor was designed, commissioned, and extensively tested at pilot-scale; it shows very effective conversion rates near to 100% for CO and slightly lower for CO2 at one-through operation for the methanol synthesis. Online tests proved that developed dispatch controller implements a smooth control strategy in real time with a temporal resolution of 1'‰ min and a forecasting horizon of 2'‰ h. Furthermore, both offline simulations and cost analyses highlighted the fundamental role of hydrogen availability and costs for the feasibility of i3upgrade solutions, and showed that the industrial implementation of the i3upgrade solutions can lead to significant environmental and economic benefits for steelworks, especially in case green electricity is available at an affordable price.

Authors with CRIS profile

Alexander Hauser Lehrstuhl für Energieverfahrenstechnik Sebastian Kolb Lehrstuhl für Energieverfahrenstechnik Jürgen Karl Lehrstuhl für Energieverfahrenstechnik

Involved external institutions

Scuola Superiore di Studi Universitari e di Perfezionamento Sant´Anna IT Italy (IT) K1-Met GmbH AT Austria (AT) Montanuniversität Leoben AT Austria (AT) Air Liquide Santé France FR France (FR) CPERI – Chemical Process & Energy Resources Institute GR Greece (GR) voestalpine Stahl GmbH AT Austria (AT) Central Mining Institute / Główny Instytut Górnictwa (GIG) PL Poland (PL)

How to cite

APA:

Matino, I., Dettori, S., Conde, A.S., Colla, V., Petrucciani, A., Zaccara, A.,... Wolf-Zoellner, P. (2023). Hydrogen intensified synthesis processes to valorise process off-gases in integrated steelworks. Materiaux et Techniques, 111(2). https://doi.org/10.1051/mattech/2023025

MLA:

Matino, Ismael, et al. "Hydrogen intensified synthesis processes to valorise process off-gases in integrated steelworks." Materiaux et Techniques 111.2 (2023).

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