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Experimental Study on the Solids Residence Time Distribution in Multiple Square-Based Spouted Beds

Marchelli, Filippo ; Curti, Massimo ; Tognin, Mattia ; Rovero, Giorgio ; Moliner, Cristina ; Arato, Elisabetta ; Bosio, Barbara

Energies (Basel), 2020-09, Vol.13 (18), p.4694 [Periódico revisado por pares]

Basel: MDPI AG

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Título:
Experimental Study on the Solids Residence Time Distribution in Multiple Square-Based Spouted Beds
Autor: Marchelli, Filippo ; Curti, Massimo ; Tognin, Mattia ; Rovero, Giorgio ; Moliner, Cristina ; Arato, Elisabetta ; Bosio, Barbara
Assuntos: Biomass ; Cold flow ; Communication ; Continuously stirred tank reactors ; Fluid dynamics ; Fluidization ; Fluidized beds ; Gasification ; in-series reactors ; Polyethylene terephthalate ; Pyrolysis ; Reactors ; Residence time distribution ; scale-up ; Spouted beds ; square-based spouted beds ; Startups ; tracer experiments
É parte de: Energies (Basel), 2020-09, Vol.13 (18), p.4694
Descrição: The present work aims at investigating the residence time distribution (RTD) of a multiple spouted bed reactor, which will be applied for the pyrolysis and gasification of residual biomass. The unit is composed of square-based spouted beds, placed in series and at descending heights, and communicating with each other through an opening in the lateral wall. The gas is fed evenly in parallel. The experimental analysis is based on tracer experiments in cold-flow units, assessing the influence of the number of units and the bed height. The tests proved the good mixing properties of the spouted beds, which create a stable fluidization regime and do not feature dead zones. Each spouted bed can generally be well assimilated to an ideal continuous stirred tank reactor (CSTR). The RTD of the device seems adequate for the application, and also seems to be well tuneable through the selection of the bed height and number of units. Given the good similarity with ideal reactor networks, these represent a valid tool to estimate the final behavior in terms of RTD.
Editor: Basel: MDPI AG
Idioma: Inglês

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Experimental Study on the Solids Residence Time Distribution in Multiple Square-Based Spouted Beds

Marchelli, Filippo ; Curti, Massimo ; Tognin, Mattia ; Rovero, Giorgio ; Moliner, Cristina ; Arato, Elisabetta ; Bosio, Barbara

Basel: MDPI AG

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