Packed Bed Reactor Design for a Gas Phase Catalytic Reaction

2008 ◽  
Keyword(s):  
Gas Phase ◽  
Catalytic Reaction ◽  
Packed Bed ◽  
Reactor Design ◽  
Packed Bed Reactor

The design and photoreaction kinetic modeling of a gas-phase titania foam packed bed reactor

2007 ◽  
Vol 133 (1-3) ◽  
pp. 317-323 ◽  
Author(s):  
A.O. Ibhadon ◽  
I.M. Arabatzis ◽  
P. Falaras ◽  
D. Tsoukleris
Keyword(s):  
Gas Phase ◽  
Kinetic Modeling ◽  
Packed Bed ◽  
Packed Bed Reactor

One-step synthesis of ethanol from glycerol in a gas phase packed bed reactor over hierarchical alkali-treated zeolite catalyst materials

2020 ◽  
Vol 22 (3) ◽  
pp. 753-765 ◽  
Author(s):  
Andrii Kostyniuk ◽  
David Bajec ◽  
Blaž Likozar
Keyword(s):  
Gas Phase ◽  
Zeolite Catalyst ◽  
Packed Bed ◽  
Packed Bed Reactor ◽  
Selective Conversion ◽  
One Step

High selective conversion of glycerol into ethanol was achieved in a gas-phase packed-bed reactor over hierarchical alkali-treated zeolite catalyst materials.

Packed-bed reactor for short time gas phase olefin polymerization: Heat transfer study and reactor optimization

AIChE Journal ◽  
2011 ◽  
Vol 58 (1) ◽  
pp. 256-267 ◽  
Author(s):  
Estevan Tioni ◽  
Roger Spitz ◽  
J. P. Broyer ◽  
Vincent Monteil ◽  
Timothy McKenna
Keyword(s):  
Heat Transfer ◽  
Gas Phase ◽  
Olefin Polymerization ◽  
Packed Bed ◽  
Packed Bed Reactor ◽  
Reactor Optimization ◽  
Short Time ◽  
Transfer Study

Photocatalytic packed bed reactor design for efficient UV light utilization

2014 ◽  
Vol 134 ◽  
pp. 66-72 ◽  
Author(s):  
Junichi Ida ◽  
Taisuke Watanabe ◽  
Soshi Watanabe ◽  
Tatsushi Matsuyama ◽  
Hideo Yamamoto
Keyword(s):  
Uv Light ◽  
Packed Bed ◽  
Reactor Design ◽  
Packed Bed Reactor ◽  
Light Utilization

Parametric Study of Split Flow Cylindrical Packed Bed Reactor for High-Temperature Thermochemical Energy Storage Using Cobalt Oxide Redox Reaction

2019 ◽  
Author(s):  
Nasser Vahedi ◽  
Alparslan Oztekin
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Pressure Drop ◽  
Parametric Study ◽  
Redox Reaction ◽  
Packed Bed ◽  
Reactor Design ◽  
Packed Bed Reactor ◽  
Reactor Performance ◽  
Split Flow

Abstract Thermal energy storage has become an integral part of Concentrated Solar Power (CSP) plants to guarantee continuous supply of power demand. For cost-effective solar power generation, the size and operating temperatures of CSP plants should be increased. Thermochemical energy storage (TCES) is the only available solution to meet energy density and high-temperature requirements. Air is mostly used as Heat Transfer Fluid (HTF) for high-temperature CSP plants. For the air-based system, metal redox reactions are good candidates as storage reactant. Application of metal oxide gas-solid redox reaction in storage systems requires an efficient reactor design. Cost-effectiveness and simplicity have made packed bed reactors a viable candidate for high-temperature applications. The high-pressure drop along the bed is the main drawback of such reactors preventing them from widespread applications. Split flow design modification could aid in reducing pressure drop while providing more flexibility in reactor performance control. A cylindrical split-flow packed bed reactor with an annulus for HTF flow is considered as a modified reactor design. The transient two-dimensional axisymmetric numerical model is developed for solving mass, momentum, and energy equations for both gas and solid phases using suitable reaction kinetics for the cobalt oxide redox reaction. A parametric study is performed on cylindrical-shaped split-flow reactor design as a basis for future optimization for complete storage cycle. The effect of split flow ratio and side-channel width on reactor performance are considered. It is shown that both parameters could be used effectively to design and optimize the reactor.

Theoretical analysis of counter-current absorption of a poorly soluble gas based on the PDE-AD model

1986 ◽  
Vol 51 (6) ◽  
pp. 1222-1239 ◽  
Author(s):  
Pavel Moravec ◽  
Vladimír Staněk
Keyword(s):  
Experimental Data ◽  
Liquid Phase ◽  
Gas Phase ◽  
Transfer Functions ◽  
Packed Bed ◽  
Packed Bed Column ◽  
Interfacial Transport ◽  
Gaseous Component ◽  
Poorly Soluble ◽  
Counter Current

Expression have been derived in the paper for all four possible transfer functions between the inlet and the outlet gas and liquid steams under the counter-current absorption of a poorly soluble gas in a packed bed column. The transfer functions have been derived for the axially dispersed model with stagnant zone in the liquid phase and the axially dispersed model for the gas phase with interfacial transport of a gaseous component (PDE - AD). calculations with practical values of parameters suggest that only two of these transfer functions are applicable for experimental data evaluation.

An experimental study of gas phase back mixing under the counter-current gas-liquid flow on a vertical expanded metal sheet packing by static tracer technique

1980 ◽  
Vol 45 (1) ◽  
pp. 214-221
Author(s):  
Jan Červenka ◽  
Mirko Endršt ◽  
Václav Kolář
Keyword(s):  
Gas Phase ◽  
Flow Model ◽  
Plug Flow ◽  
Packed Bed ◽  
Metal Sheet ◽  
Concentration Profiles ◽  
Expanded Metal ◽  
Gas Liquid Flow ◽  
Counter Current ◽  
Back Mixing

Gas phase back mixing has been measured in a column packed with vertical expanded metal sheet under the counter-current flow of gas and liquid by the static method using a tracer. The observed experimental concentration profiles has not confirmed our earlier proposed model of back mixing, based on the concentration profiles in absorption runs. These profiles do not even conform with the axially dispersed plug flow model currently used to describe axial mixing in packed bed columns. The concentration profiles may be described by a combination of the axially dispersed plug flow model with back flow.

Sign in / Sign up

Export Citation Format

Share Document