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Article

Renewable Hydrogen Production Processes for the Off-Gas Valorization in Integrated Steelworks through Hydrogen Intensified Methane and Methanol Syntheses

1
Scuola Superiore Sant’Anna, TeCIP Institute, Via Moruzzi 1, 56124 Pisa, Italy
2
Chemical Process and Energy Resources Institute (CPERI), Centre for Research and Technology Hellas (CERTH), 6th km. Charilaou-Thermi, 57001 Thessaloniki, Greece
*
Author to whom correspondence should be addressed.
Metals 2020, 10(11), 1535; https://doi.org/10.3390/met10111535
Received: 3 November 2020 / Revised: 14 November 2020 / Accepted: 16 November 2020 / Published: 18 November 2020
Within integrated steelmaking industries significant research efforts are devoted to the efficient use of resources and the reduction of CO2 emissions. Integrated steelworks consume a considerable quantity of raw materials and produce a high amount of by-products, such as off-gases, currently used for the internal production of heat, steam or electricity. These off-gases can be further valorized as feedstock for methane and methanol syntheses, but their hydrogen content is often inadequate to reach high conversions in synthesis processes. The addition of hydrogen is fundamental and a suitable hydrogen production process must be selected to obtain advantages in process economy and sustainability. This paper presents a comparative analysis of different hydrogen production processes from renewable energy, namely polymer electrolyte membrane electrolysis, solid oxide electrolyze cell electrolysis, and biomass gasification. Aspen Plus® V11-based models were developed, and simulations were conducted for sensitivity analyses to acquire useful information related to the process behavior. Advantages and disadvantages for each considered process were highlighted. In addition, the integration of the analyzed hydrogen production methods with methane and methanol syntheses is analyzed through further Aspen Plus®-based simulations. The pros and cons of the different hydrogen production options coupled with methane and methanol syntheses included in steelmaking industries are analyzed. View Full-Text
Keywords: renewable hydrogen production; electrolysis; biomass gasification; off-gas recovery; methane production; methanol production; steelworks sustainability; process simulation renewable hydrogen production; electrolysis; biomass gasification; off-gas recovery; methane production; methanol production; steelworks sustainability; process simulation
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MDPI and ACS Style

Zaccara, A.; Petrucciani, A.; Matino, I.; Branca, T.A.; Dettori, S.; Iannino, V.; Colla, V.; Bampaou, M.; Panopoulos, K. Renewable Hydrogen Production Processes for the Off-Gas Valorization in Integrated Steelworks through Hydrogen Intensified Methane and Methanol Syntheses. Metals 2020, 10, 1535. https://doi.org/10.3390/met10111535

AMA Style

Zaccara A, Petrucciani A, Matino I, Branca TA, Dettori S, Iannino V, Colla V, Bampaou M, Panopoulos K. Renewable Hydrogen Production Processes for the Off-Gas Valorization in Integrated Steelworks through Hydrogen Intensified Methane and Methanol Syntheses. Metals. 2020; 10(11):1535. https://doi.org/10.3390/met10111535

Chicago/Turabian Style

Zaccara, Antonella, Alice Petrucciani, Ismael Matino, Teresa A. Branca, Stefano Dettori, Vincenzo Iannino, Valentina Colla, Michael Bampaou, and Kyriakos Panopoulos. 2020. "Renewable Hydrogen Production Processes for the Off-Gas Valorization in Integrated Steelworks through Hydrogen Intensified Methane and Methanol Syntheses" Metals 10, no. 11: 1535. https://doi.org/10.3390/met10111535

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