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TOWARD EFFICIENT ELECTROCHEMICAL GREEN AMMONIA CYCLE

Descripción del proyecto

La producción de amoníaco ecológico favorece el uso del amoníaco como combustible renovable

El amoníaco es fundamental para la producción de fertilizantes para la industria agrícola. También se utiliza como refrigerante y para producir plásticos, explosivos, plaguicidas y otros productos químicos de importancia comercial. Un uso del amoníaco que no se ha aprovechado hasta ahora es el de vector energético. El amoníaco tiene un alto contenido de hidrógeno y una elevada densidad de energía volumétrica. Además, a diferencia del H2, se puede comprimir y licuar fácilmente para almacenarlo. Sin embargo, su producción actual se basa en procesos a alta temperatura, alta presión que requieren una gran cantidad de energía, lo que genera un aumento de las emisiones. El proyecto TELEGRAM, financiado con fondos europeos, está desarrollando procesos electroquímicos ecológicos para producir amoníaco, y abordar así un problema energético sin agravar otro.

Objetivo

Ammonia is one of the most important chemicals, but its production requires an energy intensive process, responsible for about 1-2% of total CO2 emissions worldwide. Ammonia is also potentially a formidable energy vector, with large hydrogen content, high energy volumetric density and, unlike H2, ease of liquefaction for storage. The main objective of TELEGRAM is to demonstrate, at the laboratory scale level, a complete green ammonia carbon–neutral energy cycle, based on electrochemical processes, enabling the use of ammonia as a green fuel.
Achievement of this target requires the development of two key enabling technologies. The first is the electrochemical ammonia synthesis. This will be developed by adopting a multi-stage membrane reactor which, starting from air, water and renewable sources (sunlight or wind), will produce ammonia at temperature <100°C. Novel energy materials, such as high entropy alloys and nanostructured catalysts will be studied and implemented in the reactor. The objective is to reach performance values able to make the process effective for industrial exploitation, i.e. faradaic efficiency >50% and production rate of at least 10^-7 mol/s /cm².
The second technology is the direct ammonia fuel cell (DAFC). For DAFC the best catalyst choice is platinum group metals (PGMs). Specific solutions will be developed in order to minimize or eliminate the PGMs achieving, operating below 100°C, a power density of at least 100 mW/cm² and chemical to electricity efficiency > 25%, with PGM loading < 0.05 mg/cm².
The developed ammonia reactor, powered by renewables, and the DAFC will be coupled together to demonstrate the complete ammonia energy cycle at a laboratory scale. The objective is to achieve 95% of the combined efficiencies of ammonia generation and fuel cell. These results will contribute to establish an European innovation base on the two key enabling technologies and on novel catalysts, and to build a sustainable renewable energy system.

Convocatoria de propuestas

H2020-LC-SC3-2018-2019-2020

Consulte otros proyectos de esta convocatoria

Convocatoria de subcontratación

H2020-LC-SC3-2020-RES-RIA

Régimen de financiación

RIA - Research and Innovation action

Coordinador

CONSIGLIO NAZIONALE DELLE RICERCHE
Aportación neta de la UEn
€ 602 665,00
Dirección
PIAZZALE ALDO MORO 7
00185 Roma
Italia

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Región
Centro (IT) Lazio Roma
Tipo de actividad
Research Organisations
Enlaces
Coste total
€ 602 665,00

Participantes (3)