The Characteristics of NOx Formation in Stainless Mixed Acid Pickling Process and The Effect of Hydrogen Peroxide Addition on NOx Formation 


Vol. 2,  No. 1, pp. 96-108, Jun.  1996


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  Abstract

NOx is mainly emitted from mixed acid pickling process in the stainless industry and its impact to the environment has been worried over. This study which may be considered as one of the development of clean technologies, differing from the traditional end pipe technology is about how to reduce NOx emission through the modification of corresponding process. This study consists of two parts. First, the influence of various reaction parameters in a acid pickling process on NOx emission was investigated. Second, the influence of hydrogen peroxide on NOx formation, which is known as inhibitor of NOx emission, was investigated. Major findings in this study are as follows. The important reaction parameters which have a great influence on NOx emission are the reaction temperature and the concentration of fluoric acid. The concentration of nitric acid, some of which results in NOx compound is not as important as the concentration of fluoric acid. Synthetic mixed acid of nitric acid and fluoric acid itself in absent of pickling plate contributed the NOx emission, however, its impact was negligible in terms of quantity.

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  Cite this article

[IEEE Style]

Y. J, Y. J, L. S, L. Y, H. J, P. S, C. H, "The Characteristics of NOx Formation in Stainless Mixed Acid Pickling Process and The Effect of Hydrogen Peroxide Addition on NOx Formation," Clean Technology, vol. 2, no. 1, pp. 96-108, 1996. DOI: .

[ACM Style]

Yoon J, Yie J, Lee S, Lee Y, Huh J, Park S, and Chun H. 1996. The Characteristics of NOx Formation in Stainless Mixed Acid Pickling Process and The Effect of Hydrogen Peroxide Addition on NOx Formation. Clean Technology, 2, 1, (1996), 96-108. DOI: .

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