A NOVEL SEPARATION TECHNOLOGY FOR NANO PARTICLES AT DISCHARGE OF COMBUSTION AND INCINERATION EQUIPMENT

Daniele Accornero, Emanuela Manzino, Ferruccio Pittaluga

Abstract


Still today, the issue of safely and efficiently avoiding the atmospheric release of the nano-particles produced by combustion and incineration processes is a critical and open challenge. This study addresses the conception, the technological realization and the first experimental testing of a new device suitable for in-duct filtration and separation of nano particles dispersed into flue-gas streams. The active filtering material is a membrane made from ptfe foil, in origin impermeable but suitable to allow creation, once properly stretched, of an inner texture of permeable micro- and nano-tubes, thus inducing activation of van der Waals effects to the advantage of improved particles’ sticking. The experimental tests confirm attainment of a remarkable filtration capacity, way better than the so-called ‘absolute filters’. Moreover, the filtration material allows to undergo a simple and safe “regeneration cleaning”  process by which the particles can be re-collected off-duct without any filter dismantling.


Keywords


nano particles in gas flows; membrane filter; nano particles separation; Ptfe membrane

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References


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DOI: 10.6092/issn.2281-4485/3784

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Copyright (c) 2012 Daniele Accornero, Emanuela Manzino, Ferruccio Pittaluga

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