Patent · US Active

System and method for supplying oxygenate reductants to an emission treatment system

US8056322B2 · kind B2 · utility

6Cited by

16References

39Claims

0Family size

Assignee

General Electric Company · US

Inventors

Benjamin Hale Winkler · Albany, US
Dan Hancu · Clifton Park, US
Frederic Vitse · Knoxville, US
Norberto Silvi · Clifton Park, US
Hua Wang · Clifton Park, US
Ke Liu · Xiamen, CN

Key dates

Filing date	Jan 9, 2008
Grant date	Nov 15, 2011
Priority date	—
Expiry date	Sep 16, 2030

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

A system is provided for supplying reductants to an emission treatment unit. The system comprises a fuel tank adapted to directly or indirectly supply a first premixed fuel stream and a second premixed fuel stream, wherein each fuel stream comprises a primary fuel component and an oxygenate reductant component. An engine is in fluid communication with the fuel tank, wherein the engine is configured to receive the first premixed fuel stream and create an exhaust stream. The system further includes an emission treatment unit to treat the exhaust stream. A separation unit is configured to receive the second premixed fuel stream, separate the second premixed fuel stream into a first fraction stream and a second fraction stream, and supply the first fraction stream to the emission treatment unit, wherein the first fraction stream comprises a higher concentration of the oxygenate reductant component than the second fraction stream.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.