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Modulation of liquid holdup along a trickle bed reactor with periodic operation
(Pergamon-Elsevier Science Ltd, 2007-11)
Temporal variations of the liquid holdup in a mini-pilot scale trickle bed reactor cold-mockup, induced by an ON-OFF liquid flow modulation strategy of operation, are explored at different axial positions. The reactor is ...
Trickle bed reactors: Effect of liquid flow modulation on catalytic activity
(Pergamon-Elsevier Science Ltd, 2008-10)
The effect of slow ON-OFF liquid flow modulation on the oxidation of aqueous solutions of ethanol using a 0.5% Pd / Al2 O3 commercial egg-shell catalyst was investigated in a laboratory trickle bed reactor (TBR). In this ...
Towards a comprehensive model for liquid flow modulation in trickle bed reactors
(Elsevier Science Sa, 2009-03-23)
The response of an isothermal TBR to a liquid flow modulation ON–OFF strategy is examined through a model aimed at the reactor scale. The reaction is gas-limited and first order with respect to both reactants. Liquid ...
Phenomenological approach to interpret the effect of liquid flow modulation in trickle bed reactors at the particle scale
(Pergamon-Elsevier Science Ltd, 2005-11)
This work analyzes the influence of liquid flow modulation on the behavior of a reaction occurring in a spherical porous particle within a trickle bed reactor. A single first-order reaction between a gaseous reactant and ...
Clean oxidation of alcohols in a trickle-bed reactor with liquid flow modulation
(American Chemical Society, 2005-07)
This work reports an experimental investigation of the catalytic oxidation of alcohols, using molecular oxygen as the oxidant and Pt/γ-Al 2O3 (1%w/w) as catalyst, in a trickle-bed reactor with ON-OFF liquid flow modulation ...
Catalytic wet oxidation of ethanol in an integral trickle-bed reactor operated with liquid flow modulation
(Plapiqui, 2004-03)
The effect of liquid flow modulation on the performance of an integral trickle-bed reactor used for carrying out the catalytic wet oxidation of ethanol is analyzed. Particular emphasis is devoted to examine whether the ...
Effect of gas feed flow and gas composition modulation on activated carbon performance in phenol wet air oxidation
(Pergamon-Elsevier Science Ltd, 2007-12)
Modulation of gas feed composition (air/N2 cycling) and gas feed flow (on-off air cycling) was investigated in the catalytic wet air oxidation of phenol over activated carbon (AC). Fifty hours lasting experiments were ...
Heat transfer in trickle bed column with constant and modulated feed temperature: Experiments and modeling
(Elsevier, 2011-07-11)
Heat transfer was investigated in an insulated packed bed column with co-current downflow of gas and liquid under constant and periodically modulated gas–liquid feed temperature. Bed temperatures at three axial positions ...