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Analyzing the impact of implementing different approaches of the approximation of the catalyst effectiveness factor on the prediction of the performance of trickle bed reactors. Catal Today 2020. [DOI: 10.1016/j.cattod.2019.07.033] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Kumar R, Pant H, Goswami S, Sharma V, Dash A, Mishra S, Bhanja K, Mohan S, Mahajani S. Investigation of holdup and axial dispersion of liquid phase in a catalytic exchange column using radiotracer technique. Appl Radiat Isot 2017; 121:51-60. [DOI: 10.1016/j.apradiso.2016.12.007] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2016] [Revised: 12/05/2016] [Accepted: 12/06/2016] [Indexed: 11/25/2022]
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Pant HJ, Sharma VK. Investigation of flow dynamics of liquid phase in a pilot-scale trickle bed reactor using radiotracer technique. Appl Radiat Isot 2016; 116:163-73. [PMID: 27544314 DOI: 10.1016/j.apradiso.2016.07.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Revised: 07/13/2016] [Accepted: 07/26/2016] [Indexed: 11/30/2022]
Abstract
A radiotracer investigation was carried out to measure residence time distribution (RTD) of liquid phase in a trickle bed reactor (TBR). The main objectives of the investigation were to investigate radial and axial mixing of the liquid phase, and evaluate performance of the liquid distributor/redistributor at different operating conditions. Mean residence times (MRTs), holdups (H) and fraction of flow flowing along different quadrants were estimated. The analysis of the measured RTD curves indicated radial non-uniform distribution of liquid phase across the beds. The overall RTD of the liquid phase, measured at the exit of the reactor was simulated using a multi-parameter axial dispersion with exchange model (ADEM), and model parameters were obtained. The results of model simulations indicated that the TBR behaved as a plug flow reactor at most of the operating conditions used in the investigation. The results of the investigation helped to improve the existing design as well as to design a full-scale industrial TBR for petroleum refining applications.
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Affiliation(s)
- H J Pant
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai 400085, India.
| | - V K Sharma
- Isotope Production and Applications Division, Bhabha Atomic Research Centre, Mumbai 400085, India
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Rojas M, Zeppieri S. Simulation of an industrial fixed-bed reactor with cocurrent downflow for hydrogenation of PYGAS. Catal Today 2014. [DOI: 10.1016/j.cattod.2013.07.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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van Houwelingen AJ, van der Merwe W, Wales N, Heydenrych M, Nicol W. The effect of hydrodynamic multiplicity on liquid phase trickle flow axial dispersion. Chem Eng Res Des 2009. [DOI: 10.1016/j.cherd.2008.10.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Wanchoo RK, Kaur N, Bansal A, Thakur A. RTD IN TRICKLE BED REACTORS: EXPERIMENTAL STUDY. CHEM ENG COMMUN 2007. [DOI: 10.1080/00986440701432193] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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BAYRAKTAR EMINE, MEHMETOGLU ÜLKÜ. BACK MIXING AND LIQUID HOLD-UP IN A COCURRENT UP-FLOW PACKED BED BIOREACTOR. CHEM ENG COMMUN 2007. [DOI: 10.1080/00986440108912859] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
- EMINE BAYRAKTAR
- a Chemical Engineering Department , Ankara University, Science Faculty , Tandogan, Ankara, 06100, Turkey
| | - ÜLKÜ MEHMETOGLU
- a Chemical Engineering Department , Ankara University, Science Faculty , Tandogan, Ankara, 06100, Turkey
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Guo J, Al-Dahhan M. Modeling Catalytic Trickle-Bed and Upflow Packed-Bed Reactors for Wet Air Oxidation of Phenol with Phase Change. Ind Eng Chem Res 2005. [DOI: 10.1021/ie050335v] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jing Guo
- Chemical Reaction Engineering Laboratory (CREL), Department of Chemical Engineering, Campus Box 1198, Washington University, St. Louis, Missouri 63130
| | - Muthanna Al-Dahhan
- Chemical Reaction Engineering Laboratory (CREL), Department of Chemical Engineering, Campus Box 1198, Washington University, St. Louis, Missouri 63130
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Guo J, Al-Dahhan M. Catalytic wet air oxidation of phenol in concurrent downflow and upflow packed-bed reactors over pillared clay catalyst. Chem Eng Sci 2005. [DOI: 10.1016/j.ces.2004.08.043] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Bej SK, Dalai AK, Maity SK. Effect of diluent size on the performance of a micro-scale fixed bed multiphase reactor in up flow and down flow modes of operation. Catal Today 2001. [DOI: 10.1016/s0920-5861(00)00536-8] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Thanos A, Galtier P, Papayannakos N. Liquid dispersion and holdup in a small-scale upflow hydrotreater at high temperatures and pressure. Chem Eng Sci 2001. [DOI: 10.1016/s0009-2509(00)00277-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Thanos A, Menagias P, Galtier P, Papayannakos N. Operating Pressure and Gas-Phase Properties Effects on the Liquid Flow Nonidealities in Small-Scale Upflow Reactors. Ind Eng Chem Res 1999. [DOI: 10.1021/ie990242b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Antony Thanos
- Department of Chemical Engineering, National Technical University of Athens, 9, Heroon Polytechniou Str., Gr-157 80 Zografos, Athens, Greece, and Institut Francais du Petrole, C.E.D.I., B.P. 3, 69390 Vernaison, France
| | - Philip Menagias
- Department of Chemical Engineering, National Technical University of Athens, 9, Heroon Polytechniou Str., Gr-157 80 Zografos, Athens, Greece, and Institut Francais du Petrole, C.E.D.I., B.P. 3, 69390 Vernaison, France
| | - Pierre Galtier
- Department of Chemical Engineering, National Technical University of Athens, 9, Heroon Polytechniou Str., Gr-157 80 Zografos, Athens, Greece, and Institut Francais du Petrole, C.E.D.I., B.P. 3, 69390 Vernaison, France
| | - Nikos Papayannakos
- Department of Chemical Engineering, National Technical University of Athens, 9, Heroon Polytechniou Str., Gr-157 80 Zografos, Athens, Greece, and Institut Francais du Petrole, C.E.D.I., B.P. 3, 69390 Vernaison, France
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Saroha AK, Nigam KDP, Saxena AK, Dixit L. RTD studies in trickle bed reactors packed with porous particles. CAN J CHEM ENG 1998. [DOI: 10.1002/cjce.5450760408] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Cassanello M, Martı́nez O, Cukierman AL. Liquid hold-up and backmixing in cocurrent upflow three-phase fixed-bed reactors. Chem Eng Sci 1998. [DOI: 10.1016/s0009-2509(97)00196-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Iliuta I, Thyrion F, Muntean O, Giot M. Residence time distribution of the liquid in gas-liquid cocurrent upflow fixed-bed reactors. Chem Eng Sci 1996. [DOI: 10.1016/0009-2509(96)00303-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cassanello MC, Cukierman AL, Martinez OM. General criteria to analyze the role of mass transfer and hydrodynamics in trickle-bed reactors. Chem Eng Technol 1996. [DOI: 10.1002/ceat.270190505] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Urrutia G, Bonelli P, Cassanello M, Cukierman A. On dynamic liquid holdup determination by the drainage method. Chem Eng Sci 1996. [DOI: 10.1016/0009-2509(96)00017-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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