Affiliation:
1. University of Craiova, Doctoral School Acad. Radu Voinea, Romania
2. University of Craiova, Faculty of Mechanics
Abstract
Selective catalyst reduction is one of the most affordable and successful technologies aimed at reducing NOx emissions from diesel engines. However, the reduction process can be achieved if a certain temperature is reached for the ceramic substrate of the catalytic core. The required temperatures for catalytic reaction vary from 2500 C to 4500 C depending on the technology applied in the catalytic processes. This paper aims at presenting preliminary research in microwave cordierite heating, which is a type of magnesium aluminium silicate used as ceramic honeycomb substrate (catalyst monolith) in the after treatment system in the automotive industry. The research focused on testing the Mg2Al4Si5O18 composite material (cordierite) for different microwave heating regimes in order to establish the level of microwave power required for fast heating. This application will be subject for the further development of new MW-SCR after treatment systems in order to reduce the NOx emissions at cold start engine or low operating regimes of non-road mobile machinery engines. The ceramic composite material was heated for 5 levels of microwave power, from 600 W to 1400 W, using a 6 kW microwave generator coupled with a matching load impedance tuner, and the temperatures were recorded using an IR pyrometer.
Publisher
Universitatea Dunarea de Jos din Galati
Reference20 articles.
1. "[1] Zhan R., Possible Solutions for Reducing NOx and SOx Emissions from Large Cargo Ships, AIChE Spring Meeting and Global Congress on Process Safety, 2010.
2. [2] Culbertson D., Khair M., Zhang S., Tan J., Spooler J., The Study of Exhaust Heating to Improve SCR Cold Start Performance, SAE International Journal Of Engines, 2015, pp. 1187-1195.
3. [3] Savu I. D., Savu S. V., Benga G. C., Thermal Runaway of the BaCO3 + Fe2O3 homogenous mixture and mechanical alloys at the microwave heating, Advanced Materials Research, 2014, pp. 185-189.
4. [4] Dietrich M, Hagen G., Moos R., Dielectric properties and temperature dependency of automotive catalyst coatings and substrate materials: Experimental results, influences and approximation approach, Functional Materials Letters, 2019, pp. 1793-6047.
5. [5] Peng K., Zhou J., Xu W., You Z., Long W., Xiang M., Luo M., Microwave Irradiation- Selective Catalytic Reduction of NO to N2 by Activated Carbon at Low Temperature, Energy Fuels, 2017, pp. 7344-7351.
Cited by
1 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献