scholarly journals Photocatalytic reactors

2003 ◽  
Vol 5 (3) ◽  
pp. 191-197 ◽  
Author(s):  
M. Bouchy ◽  
O. Zahraa
Keyword(s):  
Liquid Phase ◽  
Mass Balance ◽  
Transport Phenomena ◽  
Fixed Bed ◽  
Specific Rate ◽  
Artificial Light ◽  
Photocatalytic Reactors

Fundamental concepts for the design of photocatalytic reactors are recalled: specific rate, modeling of the distribution of the irradiation, description and modeling of transport phenomena on the macroscopic and macroscopic scales. These are required for establishing the reactor mass balance. A brief survey of various reactors is given for solar or artificial light, gas- or liquid-phase, slurry or fixed-bed.

Modeling of aerated upflow fixed bed reactors for nitrification

1999 ◽  
Vol 39 (4) ◽  
pp. 85-92 ◽  
Author(s):  
J. Behrendt
Keyword(s):  
Mathematical Model ◽  
Mass Transfer ◽  
Liquid Phase ◽  
Gas Phase ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Bulk Liquid ◽  
Initial Value ◽  
Fixed Bed Reactors ◽  
Number Of Cells

A mathematical model for nitrification in an aerated fixed bed reactor has been developed. This model is based on material balances in the bulk liquid, gas phase and in the biofilm area. The fixed bed is divided into a number of cells according to the reduced remixing behaviour. A fixed bed cell consists of 4 compartments: the support, the gas phase, the bulk liquid phase and the stagnant volume containing the biofilm. In the stagnant volume the biological transmutation of the ammonia is located. The transport phenomena are modelled with mass transfer formulations so that the balances could be formulated as an initial value problem. The results of the simulation and experiments are compared.

scholarly journals EXPERIMENTAL VERIFICATION OF DESIGN METHODS FOR LIQUID PHASE FIXED-BED ADSORBERS

1977 ◽  
Vol 10 (1) ◽  
pp. 27-34 ◽  
Author(s):  
KENJI HASHIMOTO ◽  
KOUICHI MIURA ◽  
MASAFUMI TSUKANO
Keyword(s):  
Liquid Phase ◽  
Experimental Verification ◽  
Fixed Bed ◽  
Design Methods

Methods to delay deactivation of zeolites on furan acylation: continuous liquid-phase technology and solvent effects

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103695-103702 ◽  
Author(s):  
Yuannan Xiong ◽  
Wenqi Chen ◽  
Jianjun Ma ◽  
Zhihua Chen ◽  
Aiwu Zeng
Keyword(s):  
Liquid Phase ◽  
Acetic Anhydride ◽  
Solvent Effects ◽  
Food Additives ◽  
Fixed Bed ◽  
Fixed Bed Reactor ◽  
Beta Zeolite ◽  
Commercial Importance

The continuous liquid phase acylation of furan with acetic anhydride over H-beta zeolite was carried out in a fixed-bed reactor. 2-acetylfuran is of considerable commercial importance due to its application in food additives and drug industries.

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