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Title: Exhaust purification with on-board ammonia production

Abstract

A power source is provided for use with selective catalytic reduction systems for exhaust-gas purification. The power source includes a first cylinder group with a first air-intake passage and a first exhaust passage, and a second cylinder group with a second air-intake passage and a second exhaust passage. The second air-intake passage is fluidly isolated from the first air-intake passage. A fuel-supply device may be configured to supply fuel into the first exhaust passage, and a catalyst may be disposed downstream of the fuel-supply device to convert at least a portion of the exhaust stream in the first exhaust passage into ammonia.

Inventors:
 [1];  [2];  [3];  [1]
  1. Peoria, IL
  2. Dunlap, IL
  3. Peterborough, GB
Issue Date:
Research Org.:
CATERPILLAR INC
Sponsoring Org.:
USDOE
OSTI Identifier:
988064
Patent Number(s):
7552583
Application Number:
10/982,921; TRN: US201018%%226
Assignee:
Caterpillar Inc. (Peoria, IL)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F01 - MACHINES OR ENGINES IN GENERAL F01N - GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL
F - MECHANICAL ENGINEERING F02 - COMBUSTION ENGINES F02B - INTERNAL-COMBUSTION PISTON ENGINES
DOE Contract Number:  
FC05-00OR22806
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; AMMONIA; AVAILABILITY; CATALYSTS; PRODUCTION; PURIFICATION; SELECTIVE CATALYTIC REDUCTION

Citation Formats

Robel, Wade J, Driscoll, James J, Coleman, Gerald N, and Knox, Kevin J. Exhaust purification with on-board ammonia production. United States: N. p., 2009. Web.
Robel, Wade J, Driscoll, James J, Coleman, Gerald N, & Knox, Kevin J. Exhaust purification with on-board ammonia production. United States.
Robel, Wade J, Driscoll, James J, Coleman, Gerald N, and Knox, Kevin J. Tue . "Exhaust purification with on-board ammonia production". United States. https://www.osti.gov/servlets/purl/988064.
@article{osti_988064,
title = {Exhaust purification with on-board ammonia production},
author = {Robel, Wade J and Driscoll, James J and Coleman, Gerald N and Knox, Kevin J},
abstractNote = {A power source is provided for use with selective catalytic reduction systems for exhaust-gas purification. The power source includes a first cylinder group with a first air-intake passage and a first exhaust passage, and a second cylinder group with a second air-intake passage and a second exhaust passage. The second air-intake passage is fluidly isolated from the first air-intake passage. A fuel-supply device may be configured to supply fuel into the first exhaust passage, and a catalyst may be disposed downstream of the fuel-supply device to convert at least a portion of the exhaust stream in the first exhaust passage into ammonia.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2009},
month = {6}
}

Patent:

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