Solids flow pattern in gas-flowing solids-fixed bed contactors. Part I Experimental
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2009
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An experimental investigation of the solids flow pattern in gas-flowing solids-fixed bed contactors is presented. The apparatus and procedures for determining the dynamic and static solids holdups, solids residence time distribution and the extent and rate of the exchange between particles in the static and dynamic solids holdup are described in detail. Experiments were performed in a bench scale system, containing a column (diameter similar to 60 mm) packed with glass beads of 16 mm in diameter packed up to the height of 0.8 m. Tracer experiments with a step input in flowing solids phase were used for determining the residence time distribution and exchange between particles. Fine solids (spheres with mean diameter of 291 pm) of two different colors (all other properties being the same) were used in the tracer experiments to determine the residence time distribution and the exchange between static and dynamic solids holdup. In both types of experiments, the response curves have been o...btained via color analysis of digital photos. All experiments have been repeated at different operating conditions, with a broad variation of solids mass flux and gas velocity, and reproducibility at set conditions was checked. The obtained experimental results are discussed and the observed important characteristics of the solids flow pattern are outlined. The effects of the solids flux and gas velocity on the solids flow pattern are presented and analyzed.
Ključne reči:
Gas-flowing solids-fixed bed contactors / Multiphase reactors / Packed bed / Multiphase flow / Solids holdup / Residence time distributionIzvor:
Chemical Engineering Science, 2009, 64, 10, 2501-2509Izdavač:
- Pergamon-Elsevier Science Ltd, Oxford
Finansiranje / projekti:
- Istraživanje fenomena prenosa značajnih za razvoj višefaznih procesa i opreme (RS-MESTD-MPN2006-2010-142014)
DOI: 10.1016/j.ces.2009.02.029
ISSN: 0009-2509
WoS: 000266114200023
Scopus: 2-s2.0-64149087202
Institucija/grupa
Tehnološko-metalurški fakultetTY - JOUR AU - Nikačević, Nikola AU - Petkovska, Menka AU - Duduković, Milorad P. PY - 2009 UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/1516 AB - An experimental investigation of the solids flow pattern in gas-flowing solids-fixed bed contactors is presented. The apparatus and procedures for determining the dynamic and static solids holdups, solids residence time distribution and the extent and rate of the exchange between particles in the static and dynamic solids holdup are described in detail. Experiments were performed in a bench scale system, containing a column (diameter similar to 60 mm) packed with glass beads of 16 mm in diameter packed up to the height of 0.8 m. Tracer experiments with a step input in flowing solids phase were used for determining the residence time distribution and exchange between particles. Fine solids (spheres with mean diameter of 291 pm) of two different colors (all other properties being the same) were used in the tracer experiments to determine the residence time distribution and the exchange between static and dynamic solids holdup. In both types of experiments, the response curves have been obtained via color analysis of digital photos. All experiments have been repeated at different operating conditions, with a broad variation of solids mass flux and gas velocity, and reproducibility at set conditions was checked. The obtained experimental results are discussed and the observed important characteristics of the solids flow pattern are outlined. The effects of the solids flux and gas velocity on the solids flow pattern are presented and analyzed. PB - Pergamon-Elsevier Science Ltd, Oxford T2 - Chemical Engineering Science T1 - Solids flow pattern in gas-flowing solids-fixed bed contactors. Part I Experimental EP - 2509 IS - 10 SP - 2501 VL - 64 DO - 10.1016/j.ces.2009.02.029 ER -
@article{ author = "Nikačević, Nikola and Petkovska, Menka and Duduković, Milorad P.", year = "2009", abstract = "An experimental investigation of the solids flow pattern in gas-flowing solids-fixed bed contactors is presented. The apparatus and procedures for determining the dynamic and static solids holdups, solids residence time distribution and the extent and rate of the exchange between particles in the static and dynamic solids holdup are described in detail. Experiments were performed in a bench scale system, containing a column (diameter similar to 60 mm) packed with glass beads of 16 mm in diameter packed up to the height of 0.8 m. Tracer experiments with a step input in flowing solids phase were used for determining the residence time distribution and exchange between particles. Fine solids (spheres with mean diameter of 291 pm) of two different colors (all other properties being the same) were used in the tracer experiments to determine the residence time distribution and the exchange between static and dynamic solids holdup. In both types of experiments, the response curves have been obtained via color analysis of digital photos. All experiments have been repeated at different operating conditions, with a broad variation of solids mass flux and gas velocity, and reproducibility at set conditions was checked. The obtained experimental results are discussed and the observed important characteristics of the solids flow pattern are outlined. The effects of the solids flux and gas velocity on the solids flow pattern are presented and analyzed.", publisher = "Pergamon-Elsevier Science Ltd, Oxford", journal = "Chemical Engineering Science", title = "Solids flow pattern in gas-flowing solids-fixed bed contactors. Part I Experimental", pages = "2509-2501", number = "10", volume = "64", doi = "10.1016/j.ces.2009.02.029" }
Nikačević, N., Petkovska, M.,& Duduković, M. P.. (2009). Solids flow pattern in gas-flowing solids-fixed bed contactors. Part I Experimental. in Chemical Engineering Science Pergamon-Elsevier Science Ltd, Oxford., 64(10), 2501-2509. https://doi.org/10.1016/j.ces.2009.02.029
Nikačević N, Petkovska M, Duduković MP. Solids flow pattern in gas-flowing solids-fixed bed contactors. Part I Experimental. in Chemical Engineering Science. 2009;64(10):2501-2509. doi:10.1016/j.ces.2009.02.029 .
Nikačević, Nikola, Petkovska, Menka, Duduković, Milorad P., "Solids flow pattern in gas-flowing solids-fixed bed contactors. Part I Experimental" in Chemical Engineering Science, 64, no. 10 (2009):2501-2509, https://doi.org/10.1016/j.ces.2009.02.029 . .