Substrate Physical Properties
Extruded Zeolite Catalysts for Lean Exhaust Application
SAE #: 2005-01-1118 | View PDF
SAE Paper 2005-01-1118(c) 2006 SAE International. This paper is posted on this website with permission from SAE International. This SAE paper is for viewing only, and may not be printed, copied, distributed or forwarded to others, or used by others.
AUTHOR:
Raja Wusirika, Steven Ogunwumi, Walter Lucas
ABSTRACT:
In lean burn engines, the conventional automotive catalyst is ineffective in reducing harmful nitric oxide (NOx) wastes. This study has investigated the use of different materials with metal additives as supports for effective NOx- controlling lean burn catalysts. A series of zeolite (ZSM-5) honeycomb samples were prepared via extrusion with low concentrations of transition metals. Samples were also impregnated with Pt to determine the effect on the catalytic activity. NOx and hydrocarbon conversion under simple lean conditions were measured in a temperature-controlled fixed bed reactor. Ethylene and Propylene, both highly selective NOx reductants, were used separately as the hydrocarbon species.
Evaluation of a Stronger Ultra Thin Wall Corning Substrate for Improved Performance
SAE #: 2005-01-1109 | View PDF
SAE Paper 2005-01-1109(c) 2006 SAE International. This paper is posted on this website with permission from SAE International. This SAE paper is for viewing only, and may not be printed, copied, distributed or forwarded to others, or used by others.
AUTHOR:
Shahid Lakhwani and Katherine W. Hughes
ABSTRACT:
Corning has introduced the Celcor® XS™ product to the market which significantly increases the strength of thin and ultrathin-wall substrates. A thorough evaluation of these products leads us to believe that the new substrate provides significant potential advantages and benefits to the entire supply chain as well as to the OEMs. The current paper will address some of these evaluations and describe some of the benefits associated with the design utilized.
