Author
Kakusaburo Onda
Bio: Kakusaburo Onda is an academic researcher from Nagoya University. The author has contributed to research in topics: Mass transfer & Absorption (chemistry). The author has an hindex of 13, co-authored 33 publications receiving 1500 citations.
Papers
More filters
TL;DR: In this article, the average bubble diameter and conditions of bubble generation are obtained for the extreme cases when no coalescence is observed and the coalescence occurs at the maximum-rate.
Abstract: 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.
900 citations
TL;DR: In this article, the authors measured the solubilities of carbon dioxide and ethylene in water and a number of aqueous salt solutions by the gas volumetric method and correlated the results with the modified empirical Setschenow equation.
Abstract: 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.
103 citations
85 citations
TL;DR: In this article, a solution based on the film theory is presented for gas absorption accompanied by a generalized, reversible chemical reaction of the form γAA+γBB⇋γEE+γFF.
65 citations
TL;DR: In this paper, Gas absorption accompanied by the parallel chemical reactions is discussed from the view-point of the film theory and the approximate solutions for the ratio Φ are derived by the same method described in our previous papers and compared with the analytical or numerical solutions for several cases.
64 citations
Cited by
More filters
TL;DR: A general review of hollow fiber membrane contactors, including operating principles, relevant mathematics, and applications, is provided in this paper, where a number of membrane module geometries are possible, hollow fiber modules have received the most attention.
1,207 citations
Patent•
26 Sep 2011TL;DR: In this article, a liquid sorbent contacts the gas mixture along asymmetric hollow-fiber membranes that enable transfer of the carbon dioxide from a gas mixture to the liquid carbon dioxide.
Abstract: 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.
801 citations
TL;DR: The design and operation issues for reactive distillation systems are considerably more complex than those involved for either conventional reactors or conventional distillation columns as discussed by the authors, and the introduction of an in situ separation function within the reaction zone leads to complex interactions between vapor-liquid equilibrium, vapor−liquid mass transfer, intra-catalyst diffusion, and chemical kinetics.
693 citations
TL;DR: The results for DEA and DIPA were analyzed by means of a zwitterion-mechanism which was derived from the mechanism originally proposed by Danckwerts as mentioned in this paper.
442 citations
TL;DR: In this paper, a theory for the operation of hollow fiber membrane modules is developed, and mass transfer coefficients in the liquid phase are investigated, and the results show when the advantage of the increased area is greater than the disadvantage of the membrane resistance.
435 citations