Kinetics of mass transfer in a liquid phase under laminar film flow conditions

2009 ◽  
Vol 43 (4) ◽  
pp. 415-419 ◽  
Author(s):  
A. M. Trushin ◽  
E. A. Dmitriev ◽  
A. V. Tsvetnov
Keyword(s):  
Mass Transfer ◽  
Liquid Phase ◽  
Film Flow ◽  
Flow Conditions ◽  
Laminar Film ◽  
Kinetics Of

Effects of Pressure on the Kinetics of Manganese Evaporation from the Ot4 Alloy / Wpływ Cisnienia Na Kinetyke Procesu Odparowania Manganu Ze Stopu Ot4

2013 ◽  
Vol 58 (1) ◽  
pp. 197-201 ◽  
Author(s):  
L. Blacha ◽  
R. Burdzik ◽  
A. Smalcerz ◽  
T. Matuła
Keyword(s):  
Mass Transfer ◽  
Liquid Phase ◽  
Gaseous Phase ◽  
Pressure Range ◽  
Evaporation Rate ◽  
Evaporation Process ◽  
Pressure Reduction ◽  
Diffusion Controlled ◽  
Kinetics Of ◽  
Evaporation Kinetics

In the paper, results of the study on manganese evaporation from the OT4 alloy are presented. In the experiments, the effects of pressure on the manganese evaporation kinetics and the stages that limit the evaporation rate were investigated. It was demonstrated that the rate of manganese evaporation from the alloy increased with pressure reduction in the system. When the pressure decreases from 1000 Pa to 10 Pa, the value of overall mass transfer kMn increases from 3.9*10-6 ms-1 to 208.4*10-6 ms-1. At the same time, the manganese fraction in the alloy decreased from 1.49% mass to 0.045% mass. Within the whole pressure range, the analysed evaporation process is diffusion-controlled. For pressures above 50 Pa, the determining stage is transfer in the gaseous phase, while for pressures below 50 Pa, it is transfer in the liquid phase.

Effect of the Concentration of Viscosifier on Desorption Kinetics of Methane From Synthetic Based Fluids

2020 ◽  
Author(s):  
Damilola Ojedeji ◽  
Yuanhang Chen
Keyword(s):  
Mass Transfer ◽  
Liquid Phase ◽  
Drilling Fluid ◽  
Desorption Kinetics ◽  
Drilling Mud ◽  
Well Control ◽  
Kinetics Of Formation ◽  
Control Decision ◽  
Internal Olefin ◽  
Kinetics Of

Abstract Synthetic-oil based drilling mud is currently the most commonly used type of drilling fluid for offshore drilling in the Gulf of Mexico, due to the environmental regulation in the area, as well as the numerous operational benefits they provide. However, early kick detection and well control decision-making are more challenging due to the solubility of formation gas in synthetic-based fluids. This partially contributes to the poor understanding of the mass transfer kinetics of formation gas in and out of synthetic fluids during these well control events. The objective of this work was to better understand the mass transfer of gas from a solution by evaluating the influence of viscosifier concentration on the desorption kinetics of methane from pure internal olefin and internal olefin-viscosifier mixture. The desorption coefficients were determined from a custom-built mass transfer apparatus. Different suspentone concentrations ranging from 0 to 5wt% by volume of liquid were used to investigate the influence of viscosifier concentration on the desorption coefficient. It was observed that the presence of suspension agents in the liquid phase decreased the mass transfer coefficient. This decrease could be due to an increase in the resistance to the flow of gas bubbles evolving from the liquid phase.

Mass transfer effects on kinetics of nonideal liquid phase ethyltert-butyl ether formation

1995 ◽  
Vol 18 (4) ◽  
pp. 269-277 ◽  
Author(s):  
Kai Sundmacher ◽  
Rui-Sheng Zhang ◽  
Ulrich Hoffmann
Keyword(s):  
Mass Transfer ◽  
Liquid Phase ◽  
Transfer Effects ◽  
Butyl Ether ◽  
Kinetics Of
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