Experimental analysis of flyash based ion exchanged Fe,Cu and V-X zeolite catalysts for SI engine exhaust emission control

Author(s):  
D. Karthikeyan ◽  
C. G. Saravanan
2014 ◽  
Vol 1008-1009 ◽  
pp. 1016-1021 ◽  
Author(s):  
Xing Qiao ◽  
Yin Nan Yuan ◽  
Xiu Chen ◽  
Yong Bin Lai ◽  
Ling Ling Cai ◽  
...  

With the promotion of energy-saving and exhaust reduction policy, the application of diesel engine has been further extended. The formation and harm of nitrogen oxides (NOX) and particulate matter (PM) were mentioned in detail, which are major pollutants in diesel exhaust. Reviewed the research progress and application of diesel engine exhaust emission control technology, fuel quality improvement, internal purification and after-treatment are introduced separately. Finally, the future development direction of exhaust emission control technology was given combining research situation of diesel engine.


2002 ◽  
Author(s):  
B. B. Ghosh ◽  
P. C. Roy ◽  
P. P. Ghosh ◽  
M. N. Gupta ◽  
P. K. Santra

Author(s):  
Randip K. Das ◽  
B. B. Ghosh ◽  
Souvik Bhattacharyya ◽  
Maya DuttaGupta

Three catalysts based on X-zeolite have been developed by exchanging its Na+ ion with Copper, Iron and Nickel metal ions and tested in a SI engine exhaust for a wide range of exhaust and operating conditions. Of the three catalysts, the Cu-X catalyst exhibits the best NOx and CO conversion performance while Ni-X shows slightly better performance compared to the Fe-X catalyst at any catalyst temperature. Unlike noble metals, the doped X-zeolite catalysts, studied here, exhibit significant NOx reduction for a wide λ range and exhibit a slow rate of decrease with increase in λ ratio. Back pressure developed across the catalyst bed is found to be well-afford able and power loss due to back pressure is only 0.216% at space velocity of 52500 /h. During 30 hours of testing of each catalyst, no significant deactivation of any catalyst is observed.


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