Modular Catalytic Structured Packing Based On Winpak

This PhD thesis develops a new type of modular catalytic structured packing Winpak-C, which is based on Winpak®. Systematic studies like theoretical simulations and experimental validations are carried out to guide the industry production, which successfully realized the industrial application of Winpak-C.The second part of this paper is testing the three MCSPs, Winpak-C-500X-2-2, Winpak-C-250X-3-2 and bale packing. Packing property, pressure drop, liquid holdup, gas loading velocity are tested. Based on thoses, we propose a revised irrigated pressure drop model and it fits well with the experimental results. Besides, other models in the references are also introduced. Compared with empirical equations, the models are more universal but less precise.The third part optimizes the dry pressure drop of Winpak-C. With the help of Solidworks, Gambit, Fluent and Tecplot 360, the pressure drop comtributing mechanism can be concluded to six principles. By analyzing the flow pattern near the packing junction, we propose that reduce the height of the reactive elements, which allows the gas streamlines become more gradual. The model and the optimization method are validated by the experiments. The irrigated pressure drop and other system also prove that the model is credible. Moreover, the total loss coefficient correlation is obtained and the reduced height, pressure drop, investments are also discussed.The fourth part tests the above three MCSPs’ RTD. There are three aspects to evaluate them, which are residence time, dimensionless variance and skewness. We compare the liquid holdup which is obtained from gravitational draining and RTD curves. We also calculate the Peclet number and axial dispersion coeffiencts.The fifth part compares axial and radial dispersion coefficient of the six reactive elements. Based on the RTD curves which obtained by the conductometer, residence time, dimensionless variance, skewness, axial and radial dispersion coefficient can be calculated. We evaluate the six reactive elements accordingly.