Influence of CaO on urea pyrolysis in the selective non-catalytic reduction deNOx process

Influence of CaO on urea pyrolysis in the selective non-catalytic reduction deNOx process Journal of Analytical and Applied Pyrolysis 126 (2017) 397–404 Contents lists available at ScienceDirect Journal of Analytical and Applied Pyrolysis journal homepage: www.elsevier.com/locate/jaap Influence of CaO on urea pyrolysis in the selective non-catalytic reduction MARK deNO process Shi-long Fu, Qiang Song , Qiang Yao Key Laboratory of Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, 100084 Beijing, China ARTICLE I NFO ABSTRACT Keywords: CaO affects urea pyrolysis when coalescing with melting urea, which decreased the performance of urea-SNCR SNCR deNO process. The influence of CaO on urea pyrolysis was studied with a thermogravimetric analyzer, a fixed CaO bed reactor, and DRIFTS. The mechanism of CaO was also analyzed. Experimental results showed that CaO Urea decreased the pyrolysis rate of urea, especially in the presence of O .NH production in urea pyrolysis was not 2 3 Pyrolysis influenced by CaO, whereas HNCO in the gaseous products disappeared and CO production was increased remarkably. NO, N O, and CO were also produced in the presence of O . DRIFTS experiments showed that Ca 2 2 (NCO) and CaCN were produced and the composition of the solid products varied with the atmosphere. 2 2 Mechanism http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Analytical and Applied Pyrolysis Elsevier

Influence of CaO on urea pyrolysis in the selective non-catalytic reduction deNOx process

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Publisher
Elsevier
Copyright
Copyright © 2017 Elsevier B.V.
ISSN
0165-2370
eISSN
1873-250X
D.O.I.
10.1016/j.jaap.2017.05.003
Publisher site
See Article on Publisher Site

Abstract

Journal of Analytical and Applied Pyrolysis 126 (2017) 397–404 Contents lists available at ScienceDirect Journal of Analytical and Applied Pyrolysis journal homepage: www.elsevier.com/locate/jaap Influence of CaO on urea pyrolysis in the selective non-catalytic reduction MARK deNO process Shi-long Fu, Qiang Song , Qiang Yao Key Laboratory of Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, 100084 Beijing, China ARTICLE I NFO ABSTRACT Keywords: CaO affects urea pyrolysis when coalescing with melting urea, which decreased the performance of urea-SNCR SNCR deNO process. The influence of CaO on urea pyrolysis was studied with a thermogravimetric analyzer, a fixed CaO bed reactor, and DRIFTS. The mechanism of CaO was also analyzed. Experimental results showed that CaO Urea decreased the pyrolysis rate of urea, especially in the presence of O .NH production in urea pyrolysis was not 2 3 Pyrolysis influenced by CaO, whereas HNCO in the gaseous products disappeared and CO production was increased remarkably. NO, N O, and CO were also produced in the presence of O . DRIFTS experiments showed that Ca 2 2 (NCO) and CaCN were produced and the composition of the solid products varied with the atmosphere. 2 2 Mechanism

Journal

Journal of Analytical and Applied PyrolysisElsevier

Published: Jul 1, 2017

References

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