Author
Tadashi Tsuji
Bio: Tadashi Tsuji is an academic researcher. The author has contributed to research in topics: Sulfur dioxide & Ammonia. The author has an hindex of 2, co-authored 3 publications receiving 86 citations.
Topics: Sulfur dioxide, Ammonia, Ammonium sulfite, Sulfur, Sulfite process
Papers
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TL;DR: In this article, the authors measured the absorption rate of pure sulfur dioxide into aqueous bisulfite, sodium hydroxide, and sodium sulfite solutions with and without a surface active agent using a liquid jet column.
Abstract: The rates of absorption of pure sulfur dioxide into aqueous sodium bisulfite, sodium hydroxide, and sodium sulfite solutions with and without a surface active agent were measured at 25°C using a liquid jet column. For the sulfur dioxide-sodium hydroxide system, the rate of absorption into the solution without surface active agent was higher than that into the solution with surface active agent, indicating the existence of the interfacial turbulence. The absorption rates obtained for the present system under the conditions of no interfacial turbulence were in good agreement with the theoretical predictions based on the penetration theory.
77 citations
TL;DR: The equilibrium constants for reactions (1) and (2), Kx and K2, are 3.1xlO7 and 1.1XlO2, respectively, at 25°C and at infinite dilution as mentioned in this paper.
Abstract: The values of the equilibrium constants for reactions (1) and (2), Kx and K2, are 3.1xlO7 and 1.1xlO2, respectively, at 25°C and at infinite dilution. Reaction (1) may be considered to be very fast. Reaction (2) has a very muchhigher rate constant than reaction (1), since it is a proton transfer reaction. Thus, both reactions (1) and (2) may be regarded as instantaneous reactions. In aqueous ammonia solutions, reaction (1) is
12 citations
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TL;DR: In this paper, a model based on penetration theory has been developed to calculate the dynamic absorption rate of sulfur dioxide into a droplet of limestone slurry, which includes both instantaneous equilibrium reactions and reactions with finite rates; limestone dissolution, sulfite oxidation, gypsum crystallization and the hydrolysis reaction of CO2.
153 citations
TL;DR: In this article, simultaneous removal of SO2 and CO2 from coal-fired flue gas was carried out in a polypropylene hollow fiber membrane contactor using aqueous monoethanolamine as the absorbent.
136 citations
TL;DR: In this article, the characteristics of the reaction between ammonium sulfite, the main desulfurizing solution, and the flue-gas-contained sulfur dioxide during the process of ammonia-based WFGD in a power plant were investigated.
110 citations
TL;DR: In this article, metal-organic frameworks (MOFs) are proposed as a promising candidate to sequester toxic H2S and SO2 gases, and they show interesting advantages over classic porous materials due to their properties and properties.
107 citations
TL;DR: In this paper, the absorption of CO2 by aqueous solutions of sucrose and surfactants was studied in a bubble column under batch conditions and the volumetric mass transfer coefficients, kLa, were determined for each of the solutions and of the gas rate flow, and the experimental values were correlated with the superficial gas velocity and physical properties of the liquid phase.
Abstract: The absorption of CO2 by aqueous solutions of sucrose and surfactants was studied in a bubble column under batch conditions. The volumetric mass transfer coefficients, kLa, were determined for each of the solutions and of the gas rate flow, and the experimental values were correlated with the superficial gas velocity and the physical properties of the liquid phase. The proposed equation reproduces the experimental kLa with an error of less than 10%.
75 citations