1994-10-01

NOx Aromatics Effects in Catalyst-Equipped Gasoline Vehicles 941869

Investigations into fuel compositional effects on emissions using model and full range fuels suggest aromatic components promote NOx conversion over the catalyst
Steady state results derived from a single engine (Ricardo Gasoline Fuels Consortium data) show that at a typical part load condition, the catalyst removes NOx less effectively with lower aromatic fuels. Neither CO nor H2 contribute significantly to catalyst performance.
Two vehicles were tested over a European cycle. Toluene formed more combustion chamber NOx, offset by increased catalyst conversion efficiency giving lower tailpipe NOx than isooctane in the vehicle with the better catalyst light-off and AFR control.

SAE MOBILUS

Subscribers can view annotate, and download all of SAE's content. Learn More »

Access SAE MOBILUS »

Members save up to 18% off list price.
Login to see discount.
Special Offer: Download multiple Technical Papers each year? TechSelect is a cost-effective subscription option to select and download 12-100 full-text Technical Papers per year. Find more information here.
We also recommend:
TECHNICAL PAPER

Implications of Precious Metal Catalysts with Leaded Fuels

810086

View Details

JOURNAL ARTICLE

Formation of Engine Internal NO2: Measures to Control the NO2/NOX Ratio for Enhanced Exhaust After Treatment

2017-01-1017

View Details

TECHNICAL PAPER

Impact of Secondary Air Injection on Small Engine Motorcycle Intended for BS VI Applications

2018-32-0068

View Details

X