Structure-Activity Relationships of SSZ-13 And Other Small Pore Zeolites for Catalytic NOx Abatement
Date of Award
January 2016
Degree Type
Thesis
Degree Name
Master of Science in Chemical Engineering (MSChE)
Department
Chemical Engineering
First Advisor
Fabio H Ribeiro
Committee Member 1
Rajamani Gounder
Committee Member 2
Jeffrey Greeley
Abstract
Environmental regulations on diesel automobiles have promoted the development of exhaust after-treatment technologies that can abate Nitrogen Oxides (NOx) i.e. Ammonia Selective Catalytic Reduction (NH3-SCR). Recently, the Cu-exchanged SSZ-13 (Cu-SSZ-13) zeolite catalyst has been commercialized due to its efficient reduction of NOx and superior hydrothermal stability in light and heavy-duty diesel vehicles. Nevertheless, a fundamental understanding of this catalyst and the NH3-SCR reaction mechanism are still under debate. In this work, kinetic and characterization studies were performed to gain insight of the active sites on Cu-SSZ-13 and contribute to the understanding of NH3-SCR mechanism. Additionally, hydrothermal stability studies were carried out on small pore zeolites i.e. SSZ-13, SSZ-39, and RTH, to evaluate potential catalysts for the reduction of NOx using NH3-SCR.
Recommended Citation
ALBARRACIN CABALLERO, JONATAN DIEGO, "Structure-Activity Relationships of SSZ-13 And Other Small Pore Zeolites for Catalytic NOx Abatement" (2016). Open Access Theses. 1218.
https://docs.lib.purdue.edu/open_access_theses/1218