Browse Publications Technical Papers 2000-01-2823
2000-10-16

Reduction of UHC-emissions from Natural Gas Fired SI-engine - Production and Application of Steam Reformed Natural Gas 2000-01-2823

Application of a known hydrogen containing fuel called reformed natural gas (RNG) has been realized in a stationary combustion engine with success. The aim for this is to reduce unburned hydrogen emissions (UHC) from the engine together with an increase in efficiency.
The fuel contains mainly methane, hydrogen and minor amounts of carbon dioxide. A small-scale unit for onboard production of RNG has been built in order to avoid the dependence of artificial supplementation of hydrogen. The production is carried out through means of steam reforming of natural gas. The RNG-unit together with theoretical considerations for estimating fuel composition and issues of caution are described.
Theoretical studies show a potential for varying the hydrogen content between 8 and 30 vol%. Studies also show potential for remarkable increases in the methane number relative to that of the natural gas.
A test engine has been fueled with RNG. The experimental results show an extension of the lean operating limit. Potential for low pollutant emissions together with an increase in efficiency for RNG fueling compared to that of conventional natural gas is seen.
Recordings of the in-cylinder pressure for all operating conditions have been made. Based upon a one-zone heat-release analysis a distinct improvement of combustion quality was documented for RNG fueling.

SAE MOBILUS

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

Access SAE MOBILUS »

Preview Document Add to Cart
Members save up to 17% 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

Hydrogen Addition For Improved Lean Burn Capability of Slow and Fast Burning Natural Gas Combustion Chambers

2002-01-2686

View Details

TECHNICAL PAPER

Hydrocarbon Emissions from a SI Engine Using Different Hydrogen Containing Gaseous Fuels

2000-01-2824

View Details

TECHNICAL PAPER

Knock Characteristics and Performance in an SI Engine With Hydrogen and Natural-Gas Blended Fuels

2004-01-1929

View Details

X