Novel approach for low CO2 intensity hydrogen from natural gas
Julian Straus, Vidar T. Skjervold, Rahul Anantharaman, David Berstad
September 20, 2022
Hydrogen from natural gas with CO2 capture can be a key transition technology to a low carbon energy system due to the abundance of natural gas and the possibility to increase the production capacity quickly. However, it is necessary to achieve both a high energy efficiency and a high CO2 capture ratio to be a viable option. The liquefaction of CO2 is one promising separation technology as it provides the captured CO2 in a transportable format. This paper therefore proposes a hydrogen production process with integrated CO2 liquefaction. Efficiencies of up to 84.7 % (Based on the higher heating value) and CO2 capture ratios of up to 97.2 % can be achieved. One advantage of the utilization of CO2 liquefaction as separation technology is furthermore the possibility to incorporate a partial recycle of the flue gas from the separation to the water–gas shift reaction, increasing both energy efficiency and carbon capture ratio.
Carbon Dioxide Capture, Hydrogen production, Low emission H2, Process integration
Suggested Citation
Straus J, Skjervold VT, Anantharaman R, Berstad D. Novel approach for low CO2 intensity hydrogen from natural gas. (2022). LAPSE:2022.0028
Author Affiliations
Straus J: SINTEF Energy Research
Skjervold VT: SINTEF Energy Research
Anantharaman R: SINTEF Energy Research
Berstad D: SINTEF Energy Research
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Sustainable Energy & Fuels
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Sep 20, 2022
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Sep 20, 2022
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CC BY 4.0
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Rahul Anantharaman