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Sukunza X, Pablos A, Tellabide M, Estiati I, Freire FB, Aguado R, Olazar M. A model for predicting the performance of a batch fountain confined spouted bed dryer at low and moderate temperatures. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.117506] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Yang J, Breault RW, Weber JM, Rowan SL. Determination of flow patterns by a novel image analysis technique in a rectangular spouted bed. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.04.067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Zhang Y, Zhong W, Rui X, Jin B, Liu H. Evaluation of Mixing and Mixing Rate in a Multiple Spouted Bed by Image Processing Technique. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2017. [DOI: 10.1515/ijcre-2016-0072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Mixing efficiency is one of the most significant factors, affecting both performance and scale-up of a gas-solid reactor system. This paper presents an experimental investigation on the particle mixing in a multiple spouted bed. Image processing technique was used to extract the real-time information concerning the distribution of particle components (bed materials and tracer particles). A more accurate definition of the tracer concentration was developed to calculate the mixing index. According to the visual observation and image analysis, the mixing mechanism was revealed and the mixing rate was evaluated. Based on these results, the effects of operation parameters on the mixing rate were discussed in terms of the flow patterns. It is found that the detection of the pixel distribution of each component in RGB images is not affected by the interference of air void, thus maintaining good measurement accuracy. Convective transportation controls the particle mixing in the internal jet and spout, while shear dominants the particle mixing in the dense moving region. Global mixing takes place only when the path from one spout cell to the other is open. This path can be formed either by the bubbles or particle circulation flows. The mixing rate is linked to the bubble motion and particle circulation. Provided that there are interactions between the spout cells, any parameters promoting the bubble motion and circulation can increase the mixing rate. Finally, a mixing pattern diagram was constructed to establish the connection between the flow structure and mixing intensity.
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Xu H, Zhong W, Yu A, Yuan Z. Spouting Characteristics of Wet Particles in a Conical-Cylindrical Spouted Bed. Ind Eng Chem Res 2015. [DOI: 10.1021/acs.iecr.5b02742] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huibin Xu
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing 210096, P.R. China
- Centre
for Simulation and Modelling of Particulate Systems, Southeast University−Monash University Joint Research Institute, Suzhou 215123, P.R. China
| | - Wenqi Zhong
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing 210096, P.R. China
| | - Aibing Yu
- Centre
for Simulation and Modelling of Particulate Systems, Southeast University−Monash University Joint Research Institute, Suzhou 215123, P.R. China
- Department
of Chemical Engineering, Monash University, Clayton, Vic 3800, Australia
| | - Zhulin Yuan
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing 210096, P.R. China
- Centre
for Simulation and Modelling of Particulate Systems, Southeast University−Monash University Joint Research Institute, Suzhou 215123, P.R. China
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Spreutels L, Haut B, Legros R, Bertrand F, Chaouki J. Experimental investigation of solid particles flow in a conical spouted bed using radioactive particle tracking. AIChE J 2015. [DOI: 10.1002/aic.15014] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Laurent Spreutels
- Chemical Engineering Dept.; Polytechnique Montreal; Montreal QC Canada H3T 1J4
- Transfers, Interfaces and Processes (TIPs) Dept., Université libre de Bruxelles; 1050 Brussels Belgium
| | - Benoit Haut
- Transfers, Interfaces and Processes (TIPs) Dept., Université libre de Bruxelles; 1050 Brussels Belgium
| | - Robert Legros
- Chemical Engineering Dept.; Polytechnique Montreal; Montreal QC Canada H3T 1J4
| | - Francois Bertrand
- Chemical Engineering Dept.; Polytechnique Montreal; Montreal QC Canada H3T 1J4
| | - Jamal Chaouki
- Chemical Engineering Dept.; Polytechnique Montreal; Montreal QC Canada H3T 1J4
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Xu H, Zhong W, Jin B, Wang J. Flow pattern and transition in gas–liquid–solid three phase spouted bed. POWDER TECHNOL 2014. [DOI: 10.1016/j.powtec.2014.07.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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San José MJ, Alvarez S, Peñas FJ, García I. Cycle time in draft tube conical spouted bed dryer for sludge from paper industry. Chem Eng Sci 2013. [DOI: 10.1016/j.ces.2013.02.058] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Zhang Y, Zhong W, Jin B, Xiao R. Mixing and Segregation Behavior in a Spout-Fluid Bed: Effect of Particle Size. Ind Eng Chem Res 2012. [DOI: 10.1021/ie301005n] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yong Zhang
- Key Laboratory of Energy Thermal
Conversion and Control of Ministry of Education, School of Energy
and Environment, Southeast University, Nanjing, 210096, China
| | - Wenqi Zhong
- Key Laboratory of Energy Thermal
Conversion and Control of Ministry of Education, School of Energy
and Environment, Southeast University, Nanjing, 210096, China
| | - Baosheng Jin
- Key Laboratory of Energy Thermal
Conversion and Control of Ministry of Education, School of Energy
and Environment, Southeast University, Nanjing, 210096, China
| | - Rui Xiao
- Key Laboratory of Energy Thermal
Conversion and Control of Ministry of Education, School of Energy
and Environment, Southeast University, Nanjing, 210096, China
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Arabiourrutia M, Olazar M, Aguado R, López G, Barona A, Bilbao J. HZSM-5 and HY Zeolite Catalyst Performance in the Pyrolysis of Tires in a Conical Spouted Bed Reactor. Ind Eng Chem Res 2008. [DOI: 10.1021/ie800376d] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Miriam Arabiourrutia
- Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain, and Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco, Alda. Urquijo s/n, 48013 Bilbao, Spain
| | - Martin Olazar
- Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain, and Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco, Alda. Urquijo s/n, 48013 Bilbao, Spain
| | - Roberto Aguado
- Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain, and Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco, Alda. Urquijo s/n, 48013 Bilbao, Spain
| | - Gartzen López
- Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain, and Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco, Alda. Urquijo s/n, 48013 Bilbao, Spain
| | - Astrid Barona
- Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain, and Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco, Alda. Urquijo s/n, 48013 Bilbao, Spain
| | - Javier Bilbao
- Departamento de Ingeniería Química, Universidad del País Vasco, Apartado 644, 48080 Bilbao, Spain, and Departamento de Ingeniería Química y Medio Ambiente, Universidad del País Vasco, Alda. Urquijo s/n, 48013 Bilbao, Spain
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Liu GQ, Li SQ, Zhao XL, Yao Q. Experimental studies of particle flow dynamics in a two-dimensional spouted bed. Chem Eng Sci 2008. [DOI: 10.1016/j.ces.2007.11.013] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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