The Design of the CASOH Process Pilot to Test the Decarbonisation of Blast Furnace Gas Using the Ca-Cu Chemical Loop

6 Pages Posted: 22 Nov 2022

See all articles by José-Ramón Fernández

José-Ramón Fernández

Spanish Research Council CSIC-INCAR

Juan Carlos Abanades

Instituto de Ciencia y Tecnología del Carbono (INCAR-CSIC)

Miriam Díaz

Consejo Superior de Investigaciones Científicas (CSIC)

Alberto Mendez

Instituto de Ciencia y Tecnología del Carbono (INCAR-CSIC)

Monica Alonso

Spanish Research Council CSIC-INCAR

Gemma Grasa

Spanish Council for Scientific Research (CSIC)

H.A.J. (Eric) van Dijk

TNO Energy-Transition

Gerard de Jong

Netherlands Organization for Applied Scientific Research (TNO)

Ruud Ijpelaan

TNO Energy-Transition

Marcos Cano Bertiz

ArcelorMittal Global R&D Asturias

Alejandro Lengomin

ArcelorMittal R&D Centre

Vincenzo Spallina

The University of Manchester

Syed Zaheer Abbas

The University of Manchester

Alvaro Amieiro

Johnson Matthey Technology Centre

Stephen Poultson

Johnson Matthey Technology Centre

Johan Brandt

Carmeuse Research and Technology

Date Written: November 21, 2022

Abstract

We present the design features of a TRL7 pilot under construction in the Arcelor Mittal´s Gas Lab site in Asturias (Spain), to demonstrate the viability of the Calcium Assisted Steel-mill Off-gas Hydrogen (CASOH) process to decarbonise Blast Furnace Gases [1,2,3]. The work is carried out within the EU C4U project (https://c4u-project.eu/, [3]). The CASOH process relies on high-temperature solid looping reactions, carried out in a number of packed-bed reactors that continuously switch between three reaction stages. In a first stage (also called CASOH), there is carbonation of CaO by capture the CO2, including the CO2 formed by the catalysed Water Gas Shift of the CO contained in the BFG. In a second reaction stage, there is oxidation of the WGS Cu catalyst with air. In a third and final stage, there is the exothermic reduction of the CuO with a fuel gas, to drive the decomposition of CaCO3 and generate a concentrated CO2 gas stream while regenerating the CaO used in the first reaction stage. The CASOH TRL7 pilot has been designed to have a single reactor (with a thermally insulated bed of functional Ca and Cu materials of 5 m height and 0.5 m inner diameter), capable to alternate between all three reaction stages. The pilot will be operated at close to atmospheric pressure within the C4U project, but has enhanced capabilities to accommodate pressure swings of up to 10 bar in the future. It can treat 300 Nm3/h of BFG (about 0.3 MWth) from the AM industrial site and generate an equivalent amount of decarbonised N2/H2 rich-gas and up to 0.7 MWth of sensitive heat at high temperature in heat removal stages. First experimental results at TRL7 are expected by the end of 2022, but successful set of results have been obtained at smaller scale (TRL3-4) with the chosen functional materials (a commercial Cu-catalyst and a commercial limestone with adequate mechanical and chemical properties) and presented in other communications at GHGT16 [4,5].

Keywords: CO2 capture, calcium looping, chemical looping

Suggested Citation

Fernández, José-Ramón and Abanades, Juan Carlos and Díaz, Miriam and Mendez, Alberto and Alonso, Monica and Grasa, Gemma and van Dijk, H.A.J. (Eric) and de Jong, Gerard and Ijpelaan, Ruud and Cano Bertiz, Marcos and Lengomin, Alejandro and Spallina, Vincenzo and Abbas, Syed Zaheer and Amieiro, Alvaro and Poultson, Stephen and Brandt, Johan, The Design of the CASOH Process Pilot to Test the Decarbonisation of Blast Furnace Gas Using the Ca-Cu Chemical Loop (November 21, 2022). Proceedings of the 16th Greenhouse Gas Control Technologies Conference (GHGT-16) 23-24 Oct 2022, Available at SSRN: https://ssrn.com/abstract=4282681 or http://dx.doi.org/10.2139/ssrn.4282681

José-Ramón Fernández (Contact Author)

Spanish Research Council CSIC-INCAR

Francisco Pintado Fe 26
Oviedo, 33011
Spain

Juan Carlos Abanades

Instituto de Ciencia y Tecnología del Carbono (INCAR-CSIC) ( email )

Miriam Díaz

Consejo Superior de Investigaciones Científicas (CSIC)

Barcelona
Spain

Alberto Mendez

Instituto de Ciencia y Tecnología del Carbono (INCAR-CSIC) ( email )

Monica Alonso

Spanish Research Council CSIC-INCAR

Francisco Pintado Fe 26
Oviedo, 33011
Spain

Gemma Grasa

Spanish Council for Scientific Research (CSIC) ( email )

Miguel Luesma Castán 4
Zaragoza, Zaragoza 50018
Spain

H.A.J. (Eric) Van Dijk

TNO Energy-Transition

Netherlands

Gerard De Jong

Netherlands Organization for Applied Scientific Research (TNO) ( email )

Petten
Netherlands

Ruud Ijpelaan

TNO Energy-Transition ( email )

Netherlands

Marcos Cano Bertiz

ArcelorMittal Global R&D Asturias

Spain

Alejandro Lengomin

ArcelorMittal R&D Centre

Spain

Vincenzo Spallina

The University of Manchester ( email )

Booth St West
Manchester, N/A M15 6PB
United Kingdom

Syed Zaheer Abbas

The University of Manchester ( email )

Booth St West
Manchester, N/A M15 6PB
United Kingdom

Alvaro Amieiro

Johnson Matthey Technology Centre ( email )

Blounts Court Road
Reading, RG4 9NH
United Kingdom

Stephen Poultson

Johnson Matthey Technology Centre ( email )

Blounts Court Road
Reading, RG4 9NH
United Kingdom

Johan Brandt

Carmeuse Research and Technology ( email )

Belgium

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