Topic
Mass transfer coefficient
About: Mass transfer coefficient is a research topic. Over the lifetime, 7827 publications have been published within this topic receiving 168354 citations.
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TL;DR: In this paper, the absorption performance of SO2 into calcium-based solution was studied in a rotating packed bed (RPB), and experiments were carried out to examine the effect of various operating parameters on the desulfurization efficiency.
49 citations
TL;DR: In this paper, the effect of the presence of solids on the mass transfer characteristics in a bubble column was experimentally studied for the air-water-calcium alginate beads system.
48 citations
TL;DR: In this article, the Piston-Dispersion-Exchange model, axial dispersion and dynamic-static liquid mass transfer coefficient are estimated from residence time distribution responses measured under co-current down flow configuration.
48 citations
01 Feb 1973
TL;DR: In this paper, the chemical and transport phenomena that may participate in controlling the oxidation rate of magnetite pellets were examined under a varying range of conditions including temperature, oxygen partial pressure, and porosity of the pellet.
Abstract: The chemical and transport phenomena that may participate in controlling the oxidation rate of magnetite pellets were examined. Reaction rates were measured under a varying range of conditions including temperature, oxygen partial pressure, and porosity of the pellet. Models based on the initial as well as developing reaction rates were used to explain the experimental findings. In contrast with many experimentally-made agglomerates, all pellet samples were made with a uniform internal structure. Such a condition was a prerequisite to obtaining a meaningful correlation of the experimental data with the theoretical base. A study of the initial reaction rates revealed that two mechanisms were operative in the first stages of pellet oxidation. Up to about 420°C a surface type of chemical reaction was the controlling step, while above 420°C mass transfer through the gaseous boundary layer was the controlling step and dominated the reaction rate. As the reaction developed within the pellet, mass transfer through the gaseous boundary layer as well as that through the product layer became the controlling steps. These mechanisms were studied in the temperature range of from 1000° to 1200°C and the role played by each was found to be a function of the amount of oxidation which had taken place.
48 citations
TL;DR: In this article, the experimental data of the extraction of the volatile oil from six aromatic plants (coriander, fennel, savoury and cotton lavender) was performed using five mathematical models, based on differential mass balances.
48 citations