Production of Sulfite by Absorption of Sulfur Dioxide with Oxygen

被引：1
|
作者：
Shibukawa, Takumi [1 ]
Ohira, Yuichi [2 ]
Obata, Eiji [2 ]
机构：
[1] Muroran Inst Technol, Grad Sch Engn, Div Chem & Mat Engn, Muroran, Hokkaido 0508585, Japan
[2] Muroran Inst Technol, Grad Sch Engn, Div Appl Sci, Muroran, Hokkaido 0508585, Japan
来源：
KAGAKU KOGAKU RONBUNSHU | 2010年 / 36卷 / 04期
关键词：
Absorption; Sulfur Dioxide; Sulfite; pH; Oxidation; NITROGEN-DIOXIDE; SODIUM-SULFITE; SO2;
D O I：
10.1252/kakoronbunshu.36.383
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In order to produce sulfites from SO(2) contained in flue gases, an SO(2) absorption experiment was conducted using a gas mixture with oxygen that emulates industrial flue gases. Concentrations of sulfite and sulfate produced by SO(2) absorption were measured, and their production ratios were assessed at a temperature of 303 K. The major product was sulfate when SO(2) was absorbed at a pH of 6.5 or below 4. When the pH of the liquid absorbent was around 4, the major product was sulfite. The production ratio of sulfite can thus be controlled using the pH of the liquid absorbent.
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页码：383 / 387
页数：5
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