Absorption of Nitrogen Dioxide into Water, Sulfuric Acid, Sodium Hydroxide, and Alkaline Sodium Sulfite Aqueous Solutions

Kameoka, Yohji; Pigford, Robert L.

doi:10.1021/i160061a031

Cited by 89 publications

(60 citation statements)

References 8 publications

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“…These values compares well with the published data from several investigators using various absorption designs [17,20,[24][25][26][27]. The details of the comparison can be seen in Table 5.…”

Section: Height Of Packingsupporting

confidence: 85%

Removal of Nitrogen Dioxide and Sulfur Dioxide from Air Streams by Absorption in Urea Solution

Barbooti¹,

Ibraheem²,

Ankosh³

2011

JEP

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The study focuses on the absorption rates of NO 2 , SO 2 and a mixture of these two acid gases into urea solution in packed bed column. The absorption rate was studied as a function of absorbent temperature, urea concentration and acid gas concentration. The influence of liquid temperature between 10 -40˚C, urea concentration between 0.1 -0.5 M and acid gas concentration NO 2 between 100 -1000 ppm (191 -1910

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Section: Height Of Packingsupporting

confidence: 85%

Removal of Nitrogen Dioxide and Sulfur Dioxide from Air Streams by Absorption in Urea Solution

Barbooti¹,

Ibraheem²,

Ankosh³

2011

JEP

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“…Joshi et al (1985) have critically reviewed the previous work. Kameoka and Pigford (1977) have shown that the rates of absorption of N204 in water and aqueous sulfuric acid solution are practically the same. They carried out experiments with 0.09 NH2S04 solutions.…”

Section: Estimation Of H(~cd);'~ Valuesmentioning

confidence: 97%

Modeling and simulation of NO_X absorption in pilot‐scale packed columns

1991

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“…Two scrubbers, made of a gas-washing bottle filled with NaOH solution (0.2 mol/L, 0.3 L), were utilized to remove the HNO2 and HNO3 in the mist. As demonstrated by Wang et al, up to 83% NO2 would not be absorbed by NaOH solution, which then remained in the exhaust gas [51][52][53]. Therefore, the NO and NO2 remaining in the gas measured by a flue gas analyser (Madur Photon PGD-100, Madurai Eljack Electronics Co., Vienna, Austria) can represent the real NOX removal efficiency.…”

Section: Experimental Apparatus and Proceduresmentioning

confidence: 99%

Removal of NOX Using Hydrogen Peroxide Vapor over Fe/TiO2 Catalysts and an Absorption Technique

Chen

Zhao

et al. 2017

Catalysts

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Abstract:In this study, we proposed an innovative oxidation-absorption method for low-temperature denitrification (160-240 • C), in which NO is initially catalytically oxidized by hydrogen peroxide (H 2 O 2 ) vapor over titania-based catalysts, and the oxidation products are then absorbed by NaOH solution. The effects of flue gas temperature, molar H 2 O 2 /NO ratio, gas hourly space velocity (GHSV), and Fe substitution amounts of Fe/TiO 2 catalysts on the denitrification efficiency were investigated by a well-designed experiment. The results indicated that the Fe/TiO 2 catalyst exhibited a combination of remarkable activity and deep oxidation ability (NO converted into harmless NO 3 − ). In order to comprehend the functional mechanism of the Fe dopant's local environment in TiO 2 support, the promotional effect of the calcination temperature of Fe/TiO 2 on the denitration performance was also studied. A tentative synergetic mechanism could be interpreted from two aspects: (1) Fe 3+ as a substitute of Ti 4+ , leading to the formation of enriched oxygen vacancies at the surface, could significantly improve the adsorption efficiency of •OH; (2) the isolated surface Fe ion holds a strong adsorption affinity for NO, such that the adsorbed NO could be easily oxidized by the pre-formed •OH. This process offers a promising alternative for current denitrification technology.

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Absorption of Nitrogen Dioxide into Water, Sulfuric Acid, Sodium Hydroxide, and Alkaline Sodium Sulfite Aqueous Solutions

Cited by 89 publications

References 8 publications

Removal of Nitrogen Dioxide and Sulfur Dioxide from Air Streams by Absorption in Urea Solution

Removal of Nitrogen Dioxide and Sulfur Dioxide from Air Streams by Absorption in Urea Solution

Modeling and simulation of NO_X absorption in pilot‐scale packed columns

Removal of NOX Using Hydrogen Peroxide Vapor over Fe/TiO2 Catalysts and an Absorption Technique

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Absorption of Nitrogen Dioxide into Water, Sulfuric Acid, Sodium Hydroxide, and Alkaline Sodium Sulfite Aqueous Solutions

Cited by 89 publications

References 8 publications

Removal of Nitrogen Dioxide and Sulfur Dioxide from Air Streams by Absorption in Urea Solution

Removal of Nitrogen Dioxide and Sulfur Dioxide from Air Streams by Absorption in Urea Solution

Modeling and simulation of NOX absorption in pilot‐scale packed columns

Removal of NOX Using Hydrogen Peroxide Vapor over Fe/TiO2 Catalysts and an Absorption Technique

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Product

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Modeling and simulation of NO_X absorption in pilot‐scale packed columns