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Mitigating Carbon Dioxide Impact of Industrial Steam Methane Reformers by AG2STM Technology: Technical and Environmental Feasibility

Journal of Sustainable Development of Energy, Water and Environment Systems
ARTICLE IN PRESS (volume, issue and page numbers will be assigned later)
DOI: http://dx.doi.org/10.13044/j.sdewes.d7.0258 (registered soon)
Andrea Bassani1, Daniele Previtali1, Carlo Pirola2, Giula Bozzano1, Simone Colombo1, Flavio Manenti1
1 Dipartimento CMIC “Giulio Natta”, Politecnico di Milano, Piazza Leonardo da Vinci 32, 20133 Milano, Italy
2 Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milano, Italy

Abstract

The aim of this work is to evaluate the potential application of a new sustainable technology, called AG2S™ (Acid Gas to Syngas), on steam reforming process in order to reduce the carbon dioxide emissions. Indeed, steam reforming has high emissions of carbon dioxide, at almost 7 kg of carbon dioxide per 1 kg of hydrogen produced. The key idea of the new technology is to convert carbon dioxide and hydrogen sulfide coming from natural gas desulfurization into additional hydrogen. Coupling different software, i.e. Aspen HYSYS and MATLAB, a complete plant model, able to manage the recycle of unconverted acid gases, has been developed. The importance of introduced innovations is highlighted and a comparison between the old process and the new one with AG2STM technology is built up. With AG2S™ technology the natural gas consumption and carbon dioxide emissions can be reduced up to 3%

Keywords: Natural Gas, AG2STM, Low Emissions, Syngas, Steam Reforming

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