2015 AIChE Annual Meeting Proceedings

Session: Future Automotive Catalysis: SCR

The three-way automotive catalyst technology has been one of the greatest successes in heterogeneous catalysis over the last 35 years. However, there is a recognized need for big steps in catalyst development paring with advanced combustion technologies that have offered significant improvement in fuel economy and lowering greenhouse gas emissions. This session focuses on future automotive catalysis for lean NOx emission through selective catalytic reduction (SCR). Contributions in this session will include expertise in automotive exhaust catalysis, computational catalysis, and catalyst characterization. The outcome will simultaneously advance both the science of a novel class of catalysts and their engineering for timely and critical energy- and environment-related applications.

Chair

Rajamani Gounder, Purdue University

Co-Chairs

Krishna Kamasamudram, Cummins Inc.
Di Wang, Cummins, Inc.

Presentations

12:30 PM

(351a) Effects of Framework Aluminum Distribution in SSZ-13 on Extraframework Copper Speciation and Selective Catalytic Reduction of NOx with NH3
John R. Di Iorio, Rajamani Gounder, W. Nicholas Delgass, Ishant Khurana, Fabio H. Ribeiro, Jeffrey T. Miller

12:50 PM

(351b) The Molecular Nature of the Cu Active Sites Under NOx Selective Catalytic Reduction
Hui Li, Christopher Paolucci, Rajamani Gounder, Atish A. Parekh, Ishant Khurana, John R. Di Iorio, Jonatan Albarracin, Arthur Shih, Fabio H. Ribeiro, W.N. Delgass, William Schneider, Jeffrey T. Miller

01:10 PM

(351c) Spectroscopic and Kinetic Study of Isolated Copper Cations in SSZ-13 Used for NOx Standard Selective Catalytic Reduction (SCR) with Ammonia
Atish A. Parekh, Christopher Paolucci, Jonatan Albarracin, Ishant Khurana, Arthur Shih, Aleksey Yezerets, Jeffrey T. Miller, William Schneider, Rajamani Gounder, W. Nicholas Delgass, Fabio H. Ribeiro

01:30 PM

(351h) Sulfur Poisoning of the NH3-SCR Reaction over Cu-SAPO-34
Yasser Jangjou, William Epling

01:50 PM

(351d) Fast Cycling for Enhanced Low-Temperature NOx Reduction on Dual-Layer LNT-SCR Catalysts
Yang Zheng, Michael Harold, Dan Luss

02:10 PM

(351f) A Comparison of Two Types of ZSM-5 on the Activity of Cu/ZSM-5 Catalysts in Selective Catalytic Reduction of NOx with NH3: Simulated Exhaust and Engine Bench Testing Study
Zhenguo Li, Johannes W. Schwank, Xiaoyin Chen, Junhua Li, Jiming Hao

02:30 PM

(351g) Spectroscopic Properties of Cu in Cu-SSZ-13 and Cu-SAPO-34 during the Selective Catalytic Reduction of NOx with NH3: Atomic and Electronic Study from First Principles
Jean-Sabin McEwen, Renqin Zhang, Janos Szanyi, Feng Gao, Kathy Helling