Study of a photocatalytic oxidation and wet absorption combined process for removal of nitrogen oxides
Publication type: Journal Article
Publication date: 2008-10-01
scimago Q1
wos Q1
SJR: 2.696
CiteScore: 20.6
Impact factor: 13.2
ISSN: 13858947, 18733212
General Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering
Environmental Chemistry
Abstract
A two-stage process incorporating photocatalytic oxidation (PCO) and wet absorption was developed in this study for the treatment of nitrogen oxides (NOx). At first, nitric oxide was converted to nitrogen dioxide by PCO. Then the nitrogen oxides were absorbed effectively in a wet scrubber by using sulfite solution as an absorbent. The experimental results showed that the removal efficiency of NOx by this combined process could reach 75%, when the inlet concentration of nitrogen oxides was 240 ppm (200 ppm NO). It was also observed that NOx removal efficiency had a maximum value when the absorbent concentration (Na2SO3) was 2 wt%. The addition of Na2S2O3 could effectively retard the excessive oxidation of sulfite by oxygen. 0.5 wt.% Na2S2O3 was considered the suitable inhibitor concentration. The main products of this combined process were nitrite and nitrate. © 2008 Elsevier B.V. All rights reserved.
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Total citations:
41
Citations from 2025:
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(2.44%)
Cite this
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MLA
Cite this
GOST
Copy
Wu Z. et al. Study of a photocatalytic oxidation and wet absorption combined process for removal of nitrogen oxides // Chemical Engineering Journal. 2008. Vol. 144. No. 2. pp. 221-226.
GOST all authors (up to 50)
Copy
Wu Z., Wang H., Liu Y., Jiang B., Sheng Z. Study of a photocatalytic oxidation and wet absorption combined process for removal of nitrogen oxides // Chemical Engineering Journal. 2008. Vol. 144. No. 2. pp. 221-226.
Cite this
RIS
Copy
TY - JOUR
DO - 10.1016/j.cej.2008.01.025
UR - https://doi.org/10.1016/j.cej.2008.01.025
TI - Study of a photocatalytic oxidation and wet absorption combined process for removal of nitrogen oxides
T2 - Chemical Engineering Journal
AU - Wu, Zhongbiao
AU - Wang, Haiqiang
AU - Liu, Yue
AU - Jiang, Boqiong
AU - Sheng, Zhongyi
PY - 2008
DA - 2008/10/01
PB - Elsevier
SP - 221-226
IS - 2
VL - 144
SN - 1385-8947
SN - 1873-3212
ER -
Cite this
BibTex (up to 50 authors)
Copy
@article{2008_Wu,
author = {Zhongbiao Wu and Haiqiang Wang and Yue Liu and Boqiong Jiang and Zhongyi Sheng},
title = {Study of a photocatalytic oxidation and wet absorption combined process for removal of nitrogen oxides},
journal = {Chemical Engineering Journal},
year = {2008},
volume = {144},
publisher = {Elsevier},
month = {oct},
url = {https://doi.org/10.1016/j.cej.2008.01.025},
number = {2},
pages = {221--226},
doi = {10.1016/j.cej.2008.01.025}
}
Cite this
MLA
Copy
Wu, Zhongbiao, et al. “Study of a photocatalytic oxidation and wet absorption combined process for removal of nitrogen oxides.” Chemical Engineering Journal, vol. 144, no. 2, Oct. 2008, pp. 221-226. https://doi.org/10.1016/j.cej.2008.01.025.