Abstract
Language | English |
---|---|
Pages | 19-26 |
Number of pages | 8 |
Journal | Proceedings- Institute of Marine Engineering Science and Technology Part A Journal of Marine Engineering and Technology |
Volume | 2009 |
Issue number | 14 |
Publication status | Published - Apr 2009 |
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Keywords
- catalytic reduction
- marine engineering
- NOx emission
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An investigation into catalysts to improve low temperature performance in the selective catalytic reduction of NO with NH3. / Xiao, Youhong; Zhou, Peilin; Zhang, W; Zhang, H.
In: Proceedings- Institute of Marine Engineering Science and Technology Part A Journal of Marine Engineering and Technology, Vol. 2009, No. 14, 04.2009, p. 19-26.Research output: Contribution to journal › Article
TY - JOUR
T1 - An investigation into catalysts to improve low temperature performance in the selective catalytic reduction of NO with NH3
AU - Xiao, Youhong
AU - Zhou, Peilin
AU - Zhang, W
AU - Zhang, H.
PY - 2009/4
Y1 - 2009/4
N2 - Selective catalytic reduction with NH3 is considered one of the most effective technologies controlling NOx emission. Metal Fe-based catalysts were used in the investigation to improve low temperature performance of NOx conversion. The temperature range studied was betweet 15 degrees C and 350 degrees C in increments of 50 degrees C. The honeycomb catalysts were prepared by an impregnation method. The study also included characterisation of catalysts by BET, XRD, H2-TPR and XPS methods. It was found that an increase in metal Fe content from 2 to 6% wt offered an improvement in the catalytic performance. However, a further increase in Fe content resulted in a decrease in its performance. More than 90% NOx conversion rate could be achieved over the Fe-based honeycomb catalyst at a low temperature by doping with different weights of Ni and Zr metals. Amongst all the catalysts studied, the mixed metal catalyst of Fe-Ni-Zr was the one with most potential. This was because of its higher NOx conversion rate at a low temperature and also because of its wider operating temperature window. The effect of gas hourly space velocity (GHSV) was also investigated and the results showed that as GHSV increased, the reduction of NOx decreased.
AB - Selective catalytic reduction with NH3 is considered one of the most effective technologies controlling NOx emission. Metal Fe-based catalysts were used in the investigation to improve low temperature performance of NOx conversion. The temperature range studied was betweet 15 degrees C and 350 degrees C in increments of 50 degrees C. The honeycomb catalysts were prepared by an impregnation method. The study also included characterisation of catalysts by BET, XRD, H2-TPR and XPS methods. It was found that an increase in metal Fe content from 2 to 6% wt offered an improvement in the catalytic performance. However, a further increase in Fe content resulted in a decrease in its performance. More than 90% NOx conversion rate could be achieved over the Fe-based honeycomb catalyst at a low temperature by doping with different weights of Ni and Zr metals. Amongst all the catalysts studied, the mixed metal catalyst of Fe-Ni-Zr was the one with most potential. This was because of its higher NOx conversion rate at a low temperature and also because of its wider operating temperature window. The effect of gas hourly space velocity (GHSV) was also investigated and the results showed that as GHSV increased, the reduction of NOx decreased.
KW - catalytic reduction
KW - marine engineering
KW - NOx emission
UR - http://strathprints.strath.ac.uk/13711/
UR - http://www.ingentaconnect.com/content/imarest/jmet/2009/00002009/00000014/art00002;jsessionid=3g0o0r0ncu6qe.alice
M3 - Article
VL - 2009
SP - 19
EP - 26
JO - Proceedings- Institute of Marine Engineering Science and Technology Part A Journal of Marine Engineering and Technology
T2 - Proceedings- Institute of Marine Engineering Science and Technology Part A Journal of Marine Engineering and Technology
JF - Proceedings- Institute of Marine Engineering Science and Technology Part A Journal of Marine Engineering and Technology
SN - 1476-1548
IS - 14
ER -