Nitrosation Reaction Without Nitrogen Oxide Waste Gas Emission and Its Engineering Practice

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• 作者：Chunguang CHEN (³Â´º¹â)^a ; ^b ; Yaqing FENG (·ëÑÇÇà)^a ; Weiwei NIU (ţΰçâ)^c ; Xuexi CHEN (³Âѧçô)^d ; ^{cxxccg@163.com}
• 关键词：nitrosation ; nitrogen oxides ; phase equilibrium
• 刊名：Chinese Journal of Chemical Engineering
• 出版年：2013
• 出版时间：April, 2013
• 年：2013
• 卷：21
• 期：4
• 页码：442-446
• 全文大小：391 K

文摘

The gas-liquid phase equilibrium is used in controlling the nitrosation reaction process. Decomposition of nitrous acid and oxidation side reaction are suppressed in a closed reaction system. The system pressure is used as the criterion of the end of reaction, avoiding excessive feeding and reducing the decomposition of nitrous acid. The head space of the reactor is used as the gas buffer, stabilizing the feeding fluctuations and inhibiting the side reaction, decomposition of nitrous acid. Nitrogen oxide concentration is controlled at the minimum level. Thus the zero release of nitrogen oxide waste gas can be achieved without using any absorption process.