Process Integration of Green Hydrogen: Decarbonization of Chemical Industries

Mohammad Ostadi, Kristofer Gunnar Paso, Sandra Rodriguez-Fabia, Lars Erik Øi, Flavio Manenti and Magne Hillestad
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Mohammad Ostadi: Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
Kristofer Gunnar Paso: Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway
Sandra Rodriguez-Fabia: RISE PFI AS, 7034 Trondheim, Norway
Lars Erik Øi: Department of Process, Energy and Environmental Technology, University of South-Eastern Norway, 3901 Porsgrunn, Norway
Flavio Manenti: Department of Chemistry, Materials and Chemical Engineering, Polytechnic University of Milan, 20133 Milan, Italy
Magne Hillestad: Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), 7491 Trondheim, Norway

Energies, 2020, vol. 13, issue 18, 1-16

Abstract: Integrated water electrolysis is a core principle of new process configurations for decarbonized heavy industries. Water electrolysis generates H 2 and O 2 and involves an exchange of thermal energy. In this manuscript, we investigate specific traditional heavy industrial processes that have previously been performed in nitrogen-rich air environments. We show that the individual process streams may be holistically integrated to establish new decarbonized industrial processes. In new process configurations, CO 2 capture is facilitated by avoiding inert gases in reactant streams. The primary energy required to drive electrolysis may be obtained from emerging renewable power sources (wind, solar, etc.) which have enjoyed substantial industrial development and cost reductions over the last decade. The new industrial designs uniquely harmonize the intermittency of renewable energy, allowing chemical energy storage. We show that fully integrated electrolysis promotes the viability of decarbonized industrial processes. Specifically, new process designs uniquely exploit intermittent renewable energy for CO 2 conversion, enabling thermal integration, H 2 and O 2 utilization, and sub-process harmonization for economic feasibility. The new designs are increasingly viable for decarbonizing ferric iron reduction, municipal waste incineration, biomass gasification, fermentation, pulp production, biogas upgrading, and calcination, and are an essential step forward in reducing anthropogenic CO 2 emissions.

Keywords: green hydrogen; electrolysis; process integration; calcination; iron reduction; oxy-combustion; pulp production; municipal waste incineration; fermentation; biogas upgrading (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (11)

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