Effect of hydrodynamic multiplicity on trickle bed reactor performance

AIChE Journal ◽  
2007 ◽  
Vol 54 (1) ◽  
pp. 249-257 ◽  
Author(s):  
Werner van der Merwe ◽  
Willie Nicol ◽  
Muthanna H. Al-Dahhan
Keyword(s):  
Reactor Performance ◽  
Trickle Bed Reactor ◽  
Trickle Bed

Mass Transfer Limited Wet Oxidation in Trickle-Bed Reactor

1998 ◽  
Vol 63 (11) ◽  
pp. 1938-1944 ◽  
Author(s):  
Vratislav Tukač ◽  
Jiří Vokál ◽  
Jiří Hanika
Keyword(s):  
Supported Catalyst ◽  
Reaction Rates ◽  
Gas Transfer ◽  
Wet Oxidation ◽  
Reactor Performance ◽  
Catalytic Wet Oxidation ◽  
Environmental Application ◽  
Trickle Bed Reactor ◽  
Fine Glass ◽  
Trickle Bed

Catalytic activity of CuO-supported catalyst in phenol oxidation, and the influence of reaction conditions, viz. temperature (125-170 °C), oxygen partial pressure (1-7 MPa) and liquid feed (30-760 ml h-1), in the continuous operation using 17.9 mm i.d. trickle-bed reactor is presented. The hydrodynamic impact on the three-phase trickle-bed reactor performance in an environmental application of catalytic wet oxidation was also investigated. The results of trickle-bed operation were strongly influenced by wetting efficiency. An insufficient catalyst wetting can be to compensated by filling the catalyst bed voids by fine glass spheres. In the case of the gas transfer limited reaction, a better wetting of the catalyst can lead to worse reactor performance due to lower reaction rates.

Effects of Induced Pulsing Flow on Trickle-Bed Reactor Performance

2003 ◽  
Vol 42 (10) ◽  
pp. 2139-2145 ◽  
Author(s):  
B. A. Wilhite ◽  
X. Huang ◽  
M. J. McCready ◽  
A. Varma
Keyword(s):  
Reactor Performance ◽  
Trickle Bed Reactor ◽  
Trickle Bed ◽  
Pulsing Flow

EFFECT OF PARTIAL WETTING ON TRICKLE-BED REACTOR PERFORMANCE

1986 ◽  
Vol 41 (1-6) ◽  
pp. 279-289 ◽  
Author(s):  
CRAIG M. RUECKER ◽  
MICHAEL A. MENSIK ◽  
AYDIN AKGERMAN
Keyword(s):  
Reactor Performance ◽  
Trickle Bed Reactor ◽  
Partial Wetting ◽  
Trickle Bed

scholarly journals Trickle bed reactor operation under forced liquid feed rate modulation

2007 ◽  
Vol 13 (4) ◽  
pp. 192-198 ◽  
Author(s):  
Jiří Hanika ◽  
Vladimir Jiricný ◽  
Petra Karnetova ◽  
Jiři Kolena ◽  
Jaromír Lederer ◽  
...  
Keyword(s):  
Feed Rate ◽  
Reactor Performance ◽  
Flowing Liquid ◽  
Trickle Bed Reactor ◽  
Rate Modulation ◽  
Liquid Feed ◽  
Pyrolysis Gasoline ◽  
Reactor Temperature ◽  
Trickle Bed ◽  
Egg Shell

Paper deals with study of behavior of trickle-bed reactor under periodic feed rate modulation conditions. Unsaturated hydrocarbons hydrogenation (typical for pyrolysis gasoline hydrotreatment) was investigated. As model reactions hydrogenation of cyclohexene and styrene on egg-shell type palladium catalyst was studied. Numerical solution of theoretical model predicting strong effect of period split on a reactor performance is discussed. Periodic operation can enhance trickle-bed productivity due to decrease of flowing liquid film thickness and by increase of mean reactor temperature. Brief data about experimental pilot plant unit for investigation of dynamic operation of trickle bed reactor are presented.

Trickle-bed reactor performance. Part II. Reaction studies

AIChE Journal ◽  
1975 ◽  
Vol 21 (4) ◽  
pp. 714-720 ◽  
Author(s):  
Shiego Goto ◽  
J. M. Smith
Keyword(s):  
Reactor Performance ◽  
Trickle Bed Reactor ◽  
Trickle Bed

EFFECT OF VOLATILE LIQUID PHASE ON TRICKLE BED REACTOR PERFORMANCE

1985 ◽  
Vol 35 (1-6) ◽  
pp. 281-291 ◽  
Author(s):  
GEORGE M. COLLINS ◽  
RICHARD K. HESS ◽  
AYDIN AKGERMAN
Keyword(s):  
Liquid Phase ◽  
Reactor Performance ◽  
Trickle Bed Reactor ◽  
Volatile Liquid ◽  
Trickle Bed

scholarly journals Development of Numerical Eulerian-Eulerian Model for Computational Analysis of Potential in Chemical Process Intensification from Trickle Bed Reactors

2020 ◽  
Vol 21 (2) ◽  
pp. 377-386
Author(s):  
Saadat Ullah Khan Suri
Keyword(s):  
Fluid Dynamics ◽  
Computational Fluid Dynamics ◽  
Chemical Process ◽  
Experimental Result ◽  
Reactor Performance ◽  
Trickle Bed Reactor ◽  
Trickle Bed Reactors ◽  
Sulphide Concentration ◽  
Review Study ◽  
Trickle Bed

The computational fluid dynamics techniques keep a paramount role by evaluating a reactor performance. The transitory performance of a Trickle bed reactor is readily monitored from its three phase’s flow conditions. This research review study corresponds towards the formation of boundaries in this Trickle bed reactors system to designate its comprehensive methodology with an optimized solution. The main paramount significance of computational fluid dynamics techniques is to observe the validity and an effective significance of the experimental result. The catalyst bed is modelled with the help of dynamic and steady state models by introducing mass and energy conservation equations. The Eulerian-Eulerian multiphase modelling technique is designed for hydro-desulfurization (HDS) and hydro-dearomatization (HDA) chemical process change from interactive momentum models. The effect in bed porosity on the HDS reaction process is observed from interactive mass transfer with solid bed condition in Trickle bed reactor. The congregated results from computational fluid dynamics codes show that wetting efficiency increases with increase in both hydrogen sulphide concentration and HDS conversion. The conversion of HDS reaction decreases with increase in hydrogen disulphide (H2S) concentration at both partially wetted and wetted bed conditions. On the other hand, there is small decrease in HDS conversion from 72% to 63.75% at H2S volumetric concentration of 0 to 8%. These observations also indicate that computational fluid dynamics provides random accessibility of liquid flow in Trickle bed reactor. There results also reveal that there is periodic variation in saturated liquid phase. The regions which are close to its wall are less irrigated. These characteristics can be changed and have effect on the reactor performance. Hence, the present review study presents the unprecedented results with high accuracy.

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