Use este identificador para citar ou linkar para este item: http://carpedien.ien.gov.br:8080/handle/ien/2313
Tipo: conferenceObject
Título: Fluid flow profile in a packed bead column using residence time curves and radiotracer techniques
Autor(es): Almeida, Ana Paula
Gonçalves, Eduardo Ramos
Brandão, Luis Eduardo Barreira
Salgado, Cesar Marques
Resumo: Filling columns are extremely important in the chemical industry and are used for purification, separation and treatment processes of gas or liquid mixtures. The objective of this work is to study the hydrodynamics of the fluid for a characterization of aqueous phase flow patterns in the filling column, associating with the methodology of the Curves of Residence Time Distribution (RTD) to analyze and associate theoretical models that put as conditions column operating. RTD can be obtained by using the pulse-stimulus response technique which is characterized by the instantaneous injection of a radiotracer into the system input. In this work, 68Ga was used as radiotracer. Five shielded and collimated NaI (Tl) 1x1" scintillator detectors were suitably positioned to record the movement of the radiotracer's path in the conveying line and filling column. Making possible the analysis of the RTD curve in the regions of interest. With the data generated by the NaI (Tl) detectors with the passage of the radiotracer in the transport line and inside the column, it was possible to evaluate the flow profile of the aqueous phase and to identify operational failures, such as internal conduit and the existence of a retention zone in the inside the column. Theoretical models were used for different flow flows: the piston flow and perfect mixing.
Palavras-chave: Chemical industry
Filling columns
Residence Time Distribution
Radiotracers techniques
Idioma: eng
País: Brasil
Editor: Instituto de Engenharia Nuclear
Sigla da Instituição: IEN
Tipo de Acesso: openAccess
URI: http://carpedien.ien.gov.br:8080/handle/ien/2313
Data do documento: Out-2017
Aparece nas coleções:Aplicação de técnicas nucleares na indústria, saúde e meio ambiente - Trabalhos de Congresso

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