Exhaust purification with on-board ammonia production

Patent · Tue Oct 12 00:00:00 EDT 2010

OSTI ID:1016143

Robel, Wade J ^[1]; Driscoll, James Joshua ^[2]; Coleman, Gerald N ^[3]

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1. Peoria, IL
2. Dunlap, IL
3. Helpston, GB

A method of ammonia production for a selective catalytic reduction system is provided. The method includes producing an exhaust gas stream within a cylinder group, wherein the first exhaust gas stream includes NOx. The exhaust gas stream may be supplied to an exhaust passage and cooled to a predetermined temperature range, and at least a portion of the NOx within the exhaust gas stream my be converted into ammonia.

• Research Organization: Caterpillar Inc., Deerfield, IL (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC05-00OR22806
• Assignee: Caterpillar Inc (Peoria, IL)
• Patent Number(s): 7,811,527
• Application Number: 12/099,831
• OSTI ID: 1016143
• Country of Publication: United States
• Language: English