Title:
粒状のトラップを備えたディーゼル機関からの有害な排出物質を減少させる方法
Document Type and Number:
Japanese Patent JP3650396
Kind Code:
B2
Abstract:
A method to improve the operation of a diesel trap through the use of a fuel additive comprising fuel-soluble compositions of platinum group metal in effective amounts to lower the emissions of unburned hydrocarbons and carbon monoxide from the trap. The catalyst is selective and reduces the oxidation of SO2 to SO3. The platinum group metal compositions are preferably added in amounts effective to provide concentrations of the metal in the fuel of less than 1 part per million (ppm). Lithium and/or sodium compositions can be used in amounts effective to reduce the trap regeneration temperature, e.g. concentrations to provide about 1 to 100 ppm lithium metal, and/or 1 to 30 ppm sodium metal.
Inventors:
Peter-Hoblin, Jeremy Di
Valentine, James M
Eparry, william robert
Valentine, James M
Eparry, william robert
Application Number:
JP51236694A
Publication Date:
May 18, 2005
Filing Date:
November 10, 1993
Export Citation:
Assignee:
Fuel Tech NV
International Classes:
B01D53/94; C07F15/00; C10L1/10; F02B75/10; C10L1/14; C10L1/30; C10L10/02; C10L10/06; F01N3/023; F01N3/029; F01N3/037; F01N3/20; F02B51/02; F02D19/12; F02D41/00; C10L1/12; C10L1/16; C10L1/18; C10L1/22; C10L1/24; F02B3/06; (IPC1-7): C10L1/30; C07F15/00; F02B75/10
Domestic Patent References:
| JP4504133A | ||||
| JP62501423A | ||||
| JP3244692A |
Foreign References:
| WO1991001361A1 | ||||
| US5034020 | ||||
| US2086775 |
Attorney, Agent or Firm:
Takehiko Saito
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