Trends in Green Chemistry Open Access

Numerical and experimental investigation of mixture uniformity and predicted performance of Urea-SCR system with vandium-based catalysts based NH3-Temperature programming disorption experiment

Joint Event: 5^th International Conference on Green Chemistry and Technology & 6^th International Conference on Environmental Chemistry and Engineering

July 24-26, 2017 Rome, Italy

Changhee LEE and Hyeonku PARK

Songwon University, South Korea

Posters & Accepted Abstracts: Trends in Green chem

Abstract:

The SCR technology for the control of NOx emission from Marine Diesel engine was brought to the IMO Tier 3 regulation for marine diesel engine applications. SCR system is effective over a wide temperature region to reduce NOx emission from engine exhaust emission during rich and lean operations. In this paper, SCR catalyst of V2O5-WO3/TiO2 is investigated and modeled. A global ammonia SCR reaction mechanism has been used, kinetic parameters for SCR system of NOx by Urea was developed for V2O5-WO3/TiO2 SCR catalysts. The kinetic analysis was carried out using a commercial one-dimensional aftertreatment code, coupled with an optimizer. In this paper, the development of a steady kinetic model of the Urea-SCR process for vanadium-based catalysts is presented. The model was based on the results from reactivity, chemistry, catalytic mechanism, and kinetics of NH3-TPD, NH3 oxidation, NO oxidation, NO: NO2 ratio, space velocity and NH3/NOx ratio over a commercial V2O5-WO3/TiO2 catalyst performed in our laboratories.

Biography :

Changhee LEE completed his PhD at the age of 35 years from Hanyang University and postdoctoral studies from OKAYAMA University School of Mechanical engineeing. He is the professor of Songwon Univeristy in Korea. He has published more than 45 papers in reputed journals and has been serving as a member of repute.

Email: leemech@songwon.ac.kr