Diesel engine exhaust denitration using non-thermal plasma with activated carbon

2020 ◽  
Vol 5 (9) ◽  
pp. 1845-1857
Author(s):  
Zongyu Wang ◽  
Hailang Kuang ◽  
Jifeng Zhang ◽  
Wei Zhang ◽  
Lilin Chu ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Diesel Engine ◽  
Thermal Plasma ◽  
Exhaust Gas ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Good Potential ◽  
Non Thermal Plasma ◽  
Set Up

A diesel engine de-NOx system combining non-thermal plasma and activated carbon was set up. The de-NOx efficiency reaches 91.8% and 92.5% for simulated gas and real exhaust gas, respectively. It has good potential to replace vanadium-based SCR.

scholarly journals Passive Nitrogen Oxides Removal from a Diesel-engine Exhaust Gas using a Biomass-Carbon Catalyst

2020 ◽  
Vol 7 (1) ◽  
pp. 479-488
Author(s):  
Ibrahim Yakub
Keyword(s):  
Activated Carbon ◽  
Diesel Engine ◽  
Surface Area ◽  
Palm Kernel ◽  
Cost Effective ◽  
Exhaust Gas ◽  
Nox Removal ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Palm Kernel Shell

Nitrogen oxides (NOx) removal from a diesel-engine exhaust gas is limited to the utilization of ammonia/urea as a reducing agent (SCR) which arose environmental concerns over the use of this chemical. Therefore, this study explored the potential of a sustainable NOx removal system by replacing ammonia with intrinsic reductants present in the exhaust gas such as hydrocarbons and carbon monoxide, and by application of cost-effective carbon-supported transitional metals catalyst. Copper-cerium catalyst supported over palm kernel shell activated carbon (Cu-Ce/PKS) was synthesized via deposition-precipitation method. The characterization shows that the catalyst has a considerably high surface area (though lower than the support). The high NOx removal by Cu-Ce/PKS in a passive catalytic reaction is attributed to the surface area provided by the carbon support, the low copper reducibility giving the low optimum operating temperature, and the synergistic effect between Cu and Ce resulting in the wide temperature window at low-temperature range. It is concluded that Cu-Ce supported over palm kernel shell activated carbon can be further developed to reduce NOx in a passive catalytic removal for a sustainable and cost-effective SCR system.  

Non Thermal Plasma NOx Remediation: From Binary Gas Mixture to Lean-Burn Gasoline and Diesel Engine Exhaust

2005 ◽  
Vol 8 (2) ◽  
Author(s):  
A. Khacef ◽  
J. M. Cormier ◽  
J. M. Pouvesle
Keyword(s):  
Diesel Engine ◽  
Thermal Plasma ◽  
Gas Mixture ◽  
Lean Burn ◽  
Engine Exhaust ◽  
Diesel Engine Exhaust ◽  
Binary Gas Mixture ◽  
Non Thermal Plasma

AbstractExperiments are presented on the plasma removal of NOx (sum of NO and NO

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