Effect of Inclination Angle of Baffled Reactor at Up-Flow on Residence Time Distribution

Autor: Nadji Bouakaz, Adh’ya-eddine Hamitouche, Mohamed Trari, Abdeltif Amrane, Zoubida Bendjama
Přispěvatelé: Université des Sciences et de la Technologie Houari Boumediene [Alger] (USTHB), Centre de Recherche Scientifique et Technique en Analyses Physico-Chimiques (CRAPC), Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Laboratory of Industrial Processes Engineering Sciences (Algiers), Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger] (USTHB), Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Arabian Journal for Science and Engineering
Arabian Journal for Science and Engineering, King Fahd University of Petroleum and Minerals SAUDI ARABIA-Springer (en ligne), 2018, 43 (11), pp.5723-5731. ⟨10.1007/s13369-017-2935-y⟩
Arabian Journal for Science and Engineering, 2018, 43 (11), pp.5723-5731. ⟨10.1007/s13369-017-2935-y⟩
ISSN: 1319-8025
2191-4281
DOI: 10.1007/s13369-017-2935-y⟩
Popis: The effect of wave baffles inclination angle on the behavior of a packed bed operating under liquid up-flow was experimentally investigated. The system has been widely used in biotechnology due to the large surface area available for the microorganisms attachment. The results of different flow rates showed that the reactor “e” at $$\theta = 180^{\circ }$$ behaves as a plug flow distorted by a constant axial dispersion. At low flow rates, the mean residence time (MRT) and variance residence time (VRT) are high. However, both parameters increase with increasing the height of the sand bed for all reactors “a”, “b”, “c”, “d” and “e” (i.e. $$\theta = 0^{\circ }, 15^{\circ }, 30^{\circ }, 45^{\circ }$$ and $$180^{\circ }$$ ), respectively, and the flow patterns lie between plug flow and perfectly mixed. Other results of residence time distribution (RTD) obtained from all reactors showed that these reactors do not have segregations or dead volumes and the reactor “c” at $$\theta = 30^{\circ }$$ presents a uniform dispersion, high N-tanks number and a low MRT compared with the reference reactor at flat baffles.
Databáze: OpenAIRE
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