Flowing solids residence time distribution in gas-flowing solids-fixed bed contactors was investigated using a tracer technique with a step signal as input. Particles of different color (all other properties being the same) were used as tracers, and the residence time distribution (RTD) was obtained by the color analysis of the outlet. In additional experiments, on the basis of the determination of the tracer fraction in static holdup, the existence of exchange between static and dynamic holdup was proven. The fraction of static particles is not subjected to exchange and represents the dead part of the flowing solids in static holdup. A mathematical model which takes into account both axial mixing and exchange between static and dynamic holdup was developed. The model, based on nonideally mixed units in series, gives reasonable agreement with experimental results.
TY - JOUR
AU - Nikačević, Nikola
AU - Duduković, Aleksandar
PY - 2005
UR - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/786
AB - Flowing solids residence time distribution in gas-flowing solids-fixed bed contactors was investigated using a tracer technique with a step signal as input. Particles of different color (all other properties being the same) were used as tracers, and the residence time distribution (RTD) was obtained by the color analysis of the outlet. In additional experiments, on the basis of the determination of the tracer fraction in static holdup, the existence of exchange between static and dynamic holdup was proven. The fraction of static particles is not subjected to exchange and represents the dead part of the flowing solids in static holdup. A mathematical model which takes into account both axial mixing and exchange between static and dynamic holdup was developed. The model, based on nonideally mixed units in series, gives reasonable agreement with experimental results.
PB - Amer Chemical Soc, Washington
T2 - Industrial & Engineering Chemistry Research
T1 - Solids residence time distribution in gas-flowing solids-fixed bed contactors
EP - 6517
IS - 16
SP - 6509
VL - 44
DO - 10.1021/ie050018o
ER -
@article{
author = "Nikačević, Nikola and Duduković, Aleksandar",
year = "2005",
abstract = "Flowing solids residence time distribution in gas-flowing solids-fixed bed contactors was investigated using a tracer technique with a step signal as input. Particles of different color (all other properties being the same) were used as tracers, and the residence time distribution (RTD) was obtained by the color analysis of the outlet. In additional experiments, on the basis of the determination of the tracer fraction in static holdup, the existence of exchange between static and dynamic holdup was proven. The fraction of static particles is not subjected to exchange and represents the dead part of the flowing solids in static holdup. A mathematical model which takes into account both axial mixing and exchange between static and dynamic holdup was developed. The model, based on nonideally mixed units in series, gives reasonable agreement with experimental results.",
publisher = "Amer Chemical Soc, Washington",
journal = "Industrial & Engineering Chemistry Research",
title = "Solids residence time distribution in gas-flowing solids-fixed bed contactors",
pages = "6517-6509",
number = "16",
volume = "44",
doi = "10.1021/ie050018o"
}
Nikačević, N.,& Duduković, A.. (2005). Solids residence time distribution in gas-flowing solids-fixed bed contactors. in Industrial & Engineering Chemistry Research
Amer Chemical Soc, Washington., 44(16), 6509-6517.
https://doi.org/10.1021/ie050018o
Nikačević N, Duduković A. Solids residence time distribution in gas-flowing solids-fixed bed contactors. in Industrial & Engineering Chemistry Research. 2005;44(16):6509-6517.
doi:10.1021/ie050018o .
Nikačević, Nikola, Duduković, Aleksandar, "Solids residence time distribution in gas-flowing solids-fixed bed contactors" in Industrial & Engineering Chemistry Research, 44, no. 16 (2005):6509-6517,
https://doi.org/10.1021/ie050018o . .
