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Investigation Of Packed Bed And Moving Bed Reactors With Benchmarking Using Advanced Measurement And Computational Techniques
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Book Synopsis Investigation of Packed Bed and Moving Bed Reactors with Benchmarking Using Advanced Measurement and Computational Techniques by : Binbin Qi
Download or read book Investigation of Packed Bed and Moving Bed Reactors with Benchmarking Using Advanced Measurement and Computational Techniques written by Binbin Qi and published by . This book was released on 2021 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Trickle bed reactors (TBR), as typical packed bed reactors (PBR), are widely used in various fields. Very limited information regarding the flow behaviors, hydrodynamic, and mathematical models in extrudate catalyst shapes, such as cylinders, trilobes, and quadrilobes, can be found in literatures because the major focus was on spherical shape. Therefore, a hybrid pressure drops and liquid holdup phenomenological model for extrudate catalyst shapes was developed based on two-phase volume averaged equations, which showed high accuracy against experimental data. The maldistribution and dynamic liquid holdup were investigated in quadrilobe catalyst using gamma-ray computed tomography. A pseudo-3D empirical model was developed and compared with deep neural network predictions. Both models were in good agreement with experimental data. The accretion locations of heavy metal contaminants entrained with flow were tracked by the dynamic radioactive particle tracking technique in the packed beds of sphere, cylinder, trilobe, and quadrilobe, respectively. Kernel density estimator was used to indicate the accretion probability distribution, showing that pressure drop played an important role in heavy metal accretions. CFD simulations of random packed trilobe catalyst bed were conducted to obtain the local information and were validated by experimental data. Moving bed reactors (MBR), as a relatively new type of reactor, encounter many challenges due to the bed expansion because of the concurrent gas-liquid upflow. DEM simulation was used to generate expanded bed. A porosity distribution correlation was developed and implemented in CFD simulations to investigate the hydrodynamics"--Abstract, page iv.
Book Synopsis Investigation of Local Velocities and Phase Holdups, and Flow Regimes and Maldistribution Identification in a Trickle Bed Reactor by : Mohd Fitri Bin Abdul Rahman
Download or read book Investigation of Local Velocities and Phase Holdups, and Flow Regimes and Maldistribution Identification in a Trickle Bed Reactor written by Mohd Fitri Bin Abdul Rahman and published by . This book was released on 2017 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Trickle bed reactors are packed beds of catalyst on which gas and liquid reactants flow concurrently downward. In this work, the experimental work was carried out in 0.14 m diameter Plexiglas column using air-water system flowing over a packed bed of 3 mm glass bead particles. The local liquid and gas velocities, phase saturation and their time series have been investigated for the first time by developing, validating, and implementing a new two-tip optical fiber probe technique. It was found the radially and axially the liquid and gas velocities and their saturation vary and they also vary with times. In various locations, due to non-uniform distribution of the flowing phases, there are windows of time where the gas phase does not pass through that location where the optical fiber probe was put at. The non-invasive gamma-ray densitometry (GRD) technique has been implemented for the first time in trickle bed reactor as in online monitoring technique to identify flow regime, gross maldistribution and liquid distribution. The GRD technique was able to identify trickle and pulse flow regime and their transition. The findings have been consistent with what have been reported in the literature. The measurement of these techniques was conducted at various axial and radial positions with the superficial liquid velocity varies in the range 0.004 - 0.016 m/s and the superficial gas velocity varies in the range of 0.03-0.27 m/s covering trickling and pulsing flow regime. The results obtained confirm that these techniques can be used with fidelity for measurements and the studies mentioned above and can be employed in various sizes of reactor operated at industrial conditions including harsh conditions of corrosion materials, high pressure, and high temperatures"--Abstract, page iv.
Book Synopsis Adiabatic Simulated Moving Bed Reactor by : Volker Michael Zahn
Download or read book Adiabatic Simulated Moving Bed Reactor written by Volker Michael Zahn and published by . This book was released on 2012-12-23 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Benchmark Experiments, Development and Needs in Support of Advanced Reactor Design by : Mark David DeHart
Download or read book Benchmark Experiments, Development and Needs in Support of Advanced Reactor Design written by Mark David DeHart and published by Frontiers Media SA. This book was released on 2023-08-01 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis A Study of Moving Bed and Simulated Moving Bed Separators and Reactors by : Barry Brent Fish
Download or read book A Study of Moving Bed and Simulated Moving Bed Separators and Reactors written by Barry Brent Fish and published by . This book was released on 1987 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Measurement and Simulation of Packed Bed Reactor Performance in the Presence of Catalyst Deactivation by : Adrian Charles Snyder
Download or read book Experimental Measurement and Simulation of Packed Bed Reactor Performance in the Presence of Catalyst Deactivation written by Adrian Charles Snyder and published by . This book was released on 1974 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of a Generic Engineering Model for Packed Bed Reactors Using Computational Fluid Dynamics by : Bouke Fokkes Tuinstra
Download or read book Development of a Generic Engineering Model for Packed Bed Reactors Using Computational Fluid Dynamics written by Bouke Fokkes Tuinstra and published by . This book was released on 2008 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Brookhaven National Laboratory. Dept. of Applied Science. Engineering Division Publisher : ISBN 13 : Total Pages :60 pages Book Rating :4.3/5 (91 download)
Book Synopsis Rotating Fluidized Bed Reactor for Space Nuclear Propulsion by : Brookhaven National Laboratory. Dept. of Applied Science. Engineering Division
Download or read book Rotating Fluidized Bed Reactor for Space Nuclear Propulsion written by Brookhaven National Laboratory. Dept. of Applied Science. Engineering Division and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Modeling and Stability of Moving Bed Reactors by : Robert John Schaefer
Download or read book Modeling and Stability of Moving Bed Reactors written by Robert John Schaefer and published by . This book was released on 1974 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental Studies Relating to Rotating Fluidized Bed Reactors by : H. P. Deinken
Download or read book Experimental Studies Relating to Rotating Fluidized Bed Reactors written by H. P. Deinken and published by . This book was released on 1964 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mass Transfer and Reaction Studies in a Trickle Bed Reactor by : Amilkar Rafael Mata
Download or read book Mass Transfer and Reaction Studies in a Trickle Bed Reactor written by Amilkar Rafael Mata and published by . This book was released on 1980 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781721802395 Total Pages :28 pages Book Rating :4.8/5 (23 download)
Book Synopsis Hydrodynamics of Packed Bed Reactor in Low Gravity by : National Aeronautics and Space Administration (NASA)
Download or read book Hydrodynamics of Packed Bed Reactor in Low Gravity written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Packed bed reactors are well known for their vast and diverse applications in the chemical industry; from gas absorption, to stripping, to catalytic conversion. Use of this type of reactor in terrestrial applications has been rather extensive because of its simplicity and relative ease of operation. Developing similar reactors for use in microgravity is critical to many space-based advanced life support systems. However, the hydrodynamics of two-phase flow packed bed reactors in this new environment and the effects of one physiochemical process on another has not been adequately assessed. Surface tension or capillary forces play a much greater role which results in a shifting in flow regime transitions and pressure drop. Results from low gravity experiments related to flow regimes and two-phase pressure drop models are presented in this paper along with a description of plans for a flight experiment on the International Space Station (ISS). Understanding the packed bed hydrodynamics and its effects on mass transfer processes in microgravity is crucial for the design of packed bed chemical or biological reactors to be used for water reclamation and other life support processes involving water purification. Motil, Brian J. and Nahra, Henry K. and Balakotaiah, Vemuri Glenn Research Center NASA/TM-2005-213806, E-15145, Rept-2005-01-3035
Book Synopsis Modelling and Control of a Packed Bed Reactor by : Larry Cates Windes
Download or read book Modelling and Control of a Packed Bed Reactor written by Larry Cates Windes and published by . This book was released on 1986 with total page 412 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Experimental and Modeling Study of the Performance of a Simulated Moving Bed Reactor by : Florian Lode
Download or read book Experimental and Modeling Study of the Performance of a Simulated Moving Bed Reactor written by Florian Lode and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fluid Motion in Packed Bed Reactors by : Jerry Lewis Stephenson
Download or read book Fluid Motion in Packed Bed Reactors written by Jerry Lewis Stephenson and published by . This book was released on 1977 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Theoretical and Experimental Study of Countercurrent Packed Bed Reactors with Internal Heat Generation by : Debabrata Gupta
Download or read book Theoretical and Experimental Study of Countercurrent Packed Bed Reactors with Internal Heat Generation written by Debabrata Gupta and published by . This book was released on 1977 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigation of the Dynamic and Structural Properties of Fixed-bed Reactor Models by : Patrick Chaumont
Download or read book Investigation of the Dynamic and Structural Properties of Fixed-bed Reactor Models written by Patrick Chaumont and published by . This book was released on 1982 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:
