Hollow fiber membrane contactors

Methods and apparatus relate to recovery of carbon dioxide and/or hydrogen sulfide from a gas mixture. Separating of the carbon dioxide, for example, from the gas mixture utilizes a liquid sorbent for the carbon dioxide. The liquid sorbent contacts the gas mixture along asymmetric hollow-fiber membranes that enable transfer of the carbon dioxide from the gas mixture to the liquid sorbent.

Hollow-fiber membrane contactors

Modelling reactive distillation

https://ris.utwente.nl/ws/files/6562847/Blauwhoff83study.pdf

A study on the reaction between CO2 and alkanolamines in aqueous solutions

Microporous hollow fibers for gas absorption. I. Mass transfer in the liquid

Bubbles which have been just generated from the porous plate are small and have an equal size, but sometime coalescence of these small bubbles occurs at a location slightly removed from the distributor, where the gas holdup is very large. Therefore, large and wide size distribution of bubbles are observed. This occurs easily in pure water and pure solvents. The surface active substances in water and solvents obstruct this coalescence of bubbles. In concentrated inorganic salt solutions, this obstruction is also recognized. For the extreme cases when no coalescence is observed and the coalescence occurs at the maximumrate, the correlations of the average bubble diameter and the conditions of bubble generation are obtained.

http://www.jstage.jst.go.jp/article/jcej1968/1/1/1_1_56/_pdf

Mass transfer coefficients between gas and liquid phases in packed columns

Solubilities of carbon dioxide and ethylene in water and a number of aqueous salt solutions are measured at about I atm. and 25°C by the gas volumetric method. A experimental results are correlated by the modified empirical Setschenow equation. The salting-out parameters which consist of three components ascribed to gas, cation and anion in aqueous salt solution, are estimated from the results of this experiment as well as from those listed in International Critical Tables and Landolt-Bornstein Tables. With these calculated salting-out parameters, the solubilities of gas in aqueous salt solutions are predicted accurately within the standard deviation 0.052. Nine more species of gas, sixe more species of cation and five more species of anion than the data by van Krevelen and Hoftijzer include are taken into account.

Kakusaburo Onda

Papers

Mass transfer coefficients between gas and liquid phases in packed columns

Salting-out parameters of gas solubility in aqueous salt solutions

Gas absorption with chemical reaction in packed columns

Gas absorption accompanied by complex chemical reactions- I Reversible chemical reactions

Gas absorption accompanied by complex chemical reactions — III Parallel chemical reactions