Obiettivo The objective of the proposed project is to define and develop new, advanced and efficient catalytic techniques, and compact economic process technologies for the abatement of N20 in industrial off-gases. The development will be based on the decomposition of N20 in nitrogen and oxygen and therefore in principle no additional reducing compounds will be necessary. This will result in relatively cheap processes, which can be easily controlled and operated. As for the composition and temperature of the off-gases to be treated, the work will be focussed on two specific application area's i.e. treatment of off-gases from specific N20-emitting chemical production and of fluidised bed waste combustion processes, which are representative with respect to the problems encountered in general. Since the requirements and circumstances for the two application area's differ, two process approaches are chosen. For the treatment of chemical process off-gases an innovative dual-step process will be investigated, consisting of a preconcentration step on an inorganic sorbent-catalyst at the process temperature of the off-gases, followed by regeneration of the spent sorbent-catalyst by catalyzed desorption/conversion in a two-section reactor system at reaction temperatures. In this approach the complete off-gas stream has not to be heated to reaction temperature, thus offering economical and energytical advantages. Sorbent-catalyst systems based on zeolites and/or mixtures with metal oxides on ceramic monoliths will be investigated. With these catalyst systems a number of potential technological problems, such as insufficient residence times and catalyst flooding can be avoided. In the case of waste combustion off-gases, a simple one stage in-situ fixed-bed or monolith catalytic decomposition process could be sufficient and is thus proposed in the project. Either zeolite type catalysts, novel zirconium oxide based catalysts and/ or mixtures will be explored. Due to the presence of various possible contaminants and deactivating agents, the industrial objective requires the development of active catalysts stable over a meaningful time of operation. The two process approaches will be evaluated by a combination of process specific catalyst system development and testing, and lab- and bench scale experiments. The work will be supported by basic studies. The results will be used for a sequence of technical and economic evaluation studies to be made in course of the project by the industrial partners with the final aim to judge the feasibility of application of the processes under industrial conditions. Target objectives for both applications are: - To reach levels of N20 abatement from the gaseous stream of at least 90 %; - To have stable catalytic performances in the presence of simulated off-gas for at least 500 hours of continuous operation. Campo scientifico natural scienceschemical sciencesinorganic chemistryinorganic compoundsnatural scienceschemical sciencesinorganic chemistrytransition metalsnatural scienceschemical sciencescatalysis Programma(i) FP4-ENV 2C - Specific programme of research and technological development in the field of environment and climate, 1994-1998 Argomento(i) 02020302 - Emission abatement Invito a presentare proposte Data not available Meccanismo di finanziamento CSC - Cost-sharing contracts Coordinatore ENERGY RESEARCH CENTRE OF THE NETHERLANDS Contributo UE Nessun dato Indirizzo Westerduinweg 3 1755 ZG PETTEN Paesi Bassi Mostra sulla mappa Costo totale Nessun dato Partecipanti (6) Classifica in ordine alfabetico Classifica per Contributo UE Espandi tutto Riduci tutto Centro de Investigaciones Energéticas, Medioambientales y Tecnológicas Spagna Contributo UE Nessun dato Indirizzo 22,Avenida Complutense 28040 Madrid Mostra sulla mappa Costo totale Nessun dato Enichem SpA Italia Contributo UE Nessun dato Indirizzo Via Fauser 28100 Novara Mostra sulla mappa Costo totale Nessun dato Enirisorse SpA Italia Contributo UE Nessun dato Indirizzo Via delle Industrie 39 30175 Mestre Venezia Mostra sulla mappa Costo totale Nessun dato INSTM - Consorzio Interuniversitario Nazionale per la Scienza e Tecnologia dei Materiali Italia Contributo UE Nessun dato Indirizzo Calle Larga Santa Marta 2137 30123 Venezia Mostra sulla mappa Costo totale Nessun dato MITSUI BABCOCK ENERGY LTD* Regno Unito Contributo UE Nessun dato Indirizzo Porterfield Road PA4 8DJ RENFREW Mostra sulla mappa Costo totale Nessun dato Technical Research Centre of Finland Finlandia Contributo UE Nessun dato Indirizzo Biologinkuja 02044 Espoo - VTT Mostra sulla mappa Costo totale Nessun dato