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Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received December 9, 2008
Accepted October 9, 2009

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Performance characteristics of NO removal by cobalt diethylenetriamine solution

Houzhang Tan^† Jinchao Wei¹ Yunbai Luo¹ Ping Yu¹

School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China ¹College of Chemistry and Molecule Science, Wuhan University, Wuhan 430072, China

tanhz@mail.xjtu.edu.cn

Korean Journal of Chemical Engineering, March 2010, 27(3), 848-853(6), 10.1007/s11814-010-0140-8

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Abstract

Abstract.The cobalt(II) diethylenetriamine ([Co(dien)2]2+) complex is a newly developed metal thiochelate for the removal of NO from flue gas. The performance characteristics of NO absorption into [Co(dien)2]2+ solution were studied in a stirred reactor. The experimental results showed that this absorption could be regarded as fast pseudo-mth-order reaction and the reaction rate could be expressed as second-order with respect to NO concentration and first-order with_x000D_ respect to [Co(dien)2]2+ concentration. The enhancement factor was 1609.1 at the [Co(dien)2]2+ concentration of 0.01 mol/L. Its optimal absorption conditions were temperature 50 ℃, NO concentration 540 ppm, [Co(dien)2]2+ concentration 0.02 mol/L and O2 concentration 6%, which were determined by orthogonal experiment.

Keywords

Nitric Oxide Absorption Cobalt Chelate Diethylenetriamine

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