Vapour–liquid Mass Transfer Performance of Modular Catalytic Structured Packing
نویسندگان
چکیده
The mass transfer performance the Katapakw-SP has been evaluated experimentally and the Delft MCSP model, a parallel channel model is developed to predict the HETP as function of F-factor. Pilot scale (i.d. 450 mm) total reflux distillation experiments were done with an aqueous system Methanol/Water and organic system Cyclohexane/n-Heptane. With the latter, two types of Katapak-SP were tested. As reference a high capacity packing (HCP) is used. In the pre-loading region of operation with the MCSP-12 packing with the aqueous system shows nearly a constant HETP of 0.27 m, where with the organic system the experimental results in this region show higher HETP values (HETP 0.35 m). With the MCSP-11 and the organic system even higher values are obtained (HETP 0.5 m). The difference in this performance is mainly caused by maldistribution of the flowing liquid, namely bypassing of the vapour when the liquid flows through the catalyst filled pockets and reduced lateral spreading due to these pockets, especially in the MCSP-11. The best performance is reached at loading in the packed beds and the model is well capable to predict the mass transfer performance.
منابع مشابه
Mass transfer performance of modular catalytic structured packing
A mechanistic, parallel channel model was developed and validated experimentally to enable the prediction of mass transfer performance of the Katapak-SP, a novel, modular catalytic structured packing. Total reflux distillation experiments were carried out at atmospheric pressure in a column with internal diameter of 0.45 m, using aqueous (Methanol/Water) and organic (Cyclohexane/n-Heptane) test...
متن کاملComaprison of Mass-Transfer Efficiencies of Scc and Structured Packing
In a previous paper, pressure drop, flooding and mass-transfer characteristics of a novel pilot-scale distillation column called spinning cone column (SCC) were presented. Here, we present the result of comparison of mass-transfer efficiencies of SCC and structured packing. Comparison of SCC and structured packing mass-transfer characteristics show that the gas and liquid-side height of transfe...
متن کاملCFD Simulation of Dry and Wet Pressure Drops and Flow Pattern in Catalytic Structured Packings
Type of packings and characteristics of their geometry can affect the flow behavior in the reactive distillation columns. KATAPAK SP is one the newest modular catalytic structured packings (MCSP) that has been used in the reactive distillation columns, recently. However, there is not any study on the hydrodynamics of this packing by using computational fluid dynamics. In the present work, a 3D ...
متن کاملInvestigation of Packing Effect on Mass Transfer Coefficient in a Single Drop Liquid Extraction Column
متن کامل
CFD Simulations of Pressure Drop in KATAPAK-S Structured Packing
KATAPAK-S is a type of structured catalytic packing, which is used in reactive distillation processes. The dry pressure drop characteristic (the pressure drop in the absence of liquid flow) is of significant importance for the investigation of process hydrodynamics. In this paper, the dry pressure drop within the catalyst packed channels of KATAPAK-S has been investigated using Computational Fl...
متن کامل