CNR: methane and pure CO2 from organic waste

Innovative method applied at industrial level in Bergamo: 3,000 m3/hour of renewable gas and 7,000 ton/year of carbon dioxide for alimentary use

contatore.jpgThanks to an Italian project it is already possible to obtain in a single process from organic waste methane as renewable energy source and pure CO2 for industrial and alimentary use. It has been proved by a team of researchers of the Institute on Membrane Technology of the National Research Council (CNR-ITM), in cooperation with company Tecno Project Industriale which has described the method in the “Energy & Environmental Science” journal.
In the process, explains head of the research group on polymeric gas separation membranes at CNR-ITM, John Jansen, “organic waste is converted into biogas and, at the same time, the membranes separate and purify carbon dioxide for further use.”
The innovative method applied at industrial level in Montello Spa, in the commune of the same name in the Province of Bergamo, where the organic fraction of municipal waste of Lombardy is transformed into biogas (which contains mainly methane and around 35% of CO2). “The innovation of the facility, the first in Europe also in terms of size, is that CO2 contained in biogas, instead of being released into the atmosphere, is entirely recovered at such a purity grade that it can also be used in the food industry,” points out Jansen.
The plant of Montello produces around 3,000 m3 of methane per hour, whereas 7,000 ton of CO2 produced a year “are recovered acquiring a significant market value,” underlined Elisa Esposito, member of the CNR-ITM research group and main author of the study.

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06 February 2019 - 15:55 CET