Mass transfer without and with chemical reaction in particulate fluidized beds
Apstrakt
This paper presents the results of an experimental investigation of the mass transfer between the column wall and fluidized bed without and with fast, irreversible chemical reaction. Experiments were performed in the column 34 mm in diameter with inner channel filled with benzoic acid. The inert, spherical, glass particles with diameter of 1.94 mm were used as fluidized bed and the fluidization medium was aqueous solution of sodium hydroxide. In order to obtain a clear result of the impact of particles on the intensity of the mass transfer, experiments with and without chemical reaction are also done in systems without particles. The value of the enhancement factor of the mass transfer coefficient due to the presence of chemical reactions was found using experimental results. It was shown that the influence of the particles presence and the effect of chemical reactions have additive character on the mass transfer. The chemical reaction in systems without particles increases mass transf...er coefficients 20 times, while the presence of fluidized particles increases the mass transfer coefficients 28 times. Obtained results showed good agreement with literature correlations. In order to establish analogies between momentum and mass transfer in a fluidized bed, with chemical reaction, experimental results are also presented.
Izvor:
Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer, 2015, 0, 871-874Izdavač:
- 8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Jaćimovski, Darko AU - Garić-Grulović, Radmila AU - Pjanović, Rada AU - Bošković-Vragolović, Nevenka PY - 2015 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/2878 AB - This paper presents the results of an experimental investigation of the mass transfer between the column wall and fluidized bed without and with fast, irreversible chemical reaction. Experiments were performed in the column 34 mm in diameter with inner channel filled with benzoic acid. The inert, spherical, glass particles with diameter of 1.94 mm were used as fluidized bed and the fluidization medium was aqueous solution of sodium hydroxide. In order to obtain a clear result of the impact of particles on the intensity of the mass transfer, experiments with and without chemical reaction are also done in systems without particles. The value of the enhancement factor of the mass transfer coefficient due to the presence of chemical reactions was found using experimental results. It was shown that the influence of the particles presence and the effect of chemical reactions have additive character on the mass transfer. The chemical reaction in systems without particles increases mass transfer coefficients 20 times, while the presence of fluidized particles increases the mass transfer coefficients 28 times. Obtained results showed good agreement with literature correlations. In order to establish analogies between momentum and mass transfer in a fluidized bed, with chemical reaction, experimental results are also presented. PB - 8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015 T2 - Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer T1 - Mass transfer without and with chemical reaction in particulate fluidized beds EP - 874 SP - 871 VL - 0 UR - https://hdl.handle.net/21.15107/rcub_technorep_2878 ER -
@article{ author = "Jaćimovski, Darko and Garić-Grulović, Radmila and Pjanović, Rada and Bošković-Vragolović, Nevenka", year = "2015", abstract = "This paper presents the results of an experimental investigation of the mass transfer between the column wall and fluidized bed without and with fast, irreversible chemical reaction. Experiments were performed in the column 34 mm in diameter with inner channel filled with benzoic acid. The inert, spherical, glass particles with diameter of 1.94 mm were used as fluidized bed and the fluidization medium was aqueous solution of sodium hydroxide. In order to obtain a clear result of the impact of particles on the intensity of the mass transfer, experiments with and without chemical reaction are also done in systems without particles. The value of the enhancement factor of the mass transfer coefficient due to the presence of chemical reactions was found using experimental results. It was shown that the influence of the particles presence and the effect of chemical reactions have additive character on the mass transfer. The chemical reaction in systems without particles increases mass transfer coefficients 20 times, while the presence of fluidized particles increases the mass transfer coefficients 28 times. Obtained results showed good agreement with literature correlations. In order to establish analogies between momentum and mass transfer in a fluidized bed, with chemical reaction, experimental results are also presented.", publisher = "8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015", journal = "Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer", title = "Mass transfer without and with chemical reaction in particulate fluidized beds", pages = "874-871", volume = "0", url = "https://hdl.handle.net/21.15107/rcub_technorep_2878" }
Jaćimovski, D., Garić-Grulović, R., Pjanović, R.,& Bošković-Vragolović, N.. (2015). Mass transfer without and with chemical reaction in particulate fluidized beds. in Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer 8th International Symposium on Turbulence, Heat and Mass Transfer, THMT 2015., 0, 871-874. https://hdl.handle.net/21.15107/rcub_technorep_2878
Jaćimovski D, Garić-Grulović R, Pjanović R, Bošković-Vragolović N. Mass transfer without and with chemical reaction in particulate fluidized beds. in Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer. 2015;0:871-874. https://hdl.handle.net/21.15107/rcub_technorep_2878 .
Jaćimovski, Darko, Garić-Grulović, Radmila, Pjanović, Rada, Bošković-Vragolović, Nevenka, "Mass transfer without and with chemical reaction in particulate fluidized beds" in Proceedings of the International Symposium on Turbulence, Heat and Mass Transfer, 0 (2015):871-874, https://hdl.handle.net/21.15107/rcub_technorep_2878 .