Internal-combustion engines – Combined devices – Generating plants
Patent
1978-03-10
1981-01-13
Feinberg, Craig R.
Internal-combustion engines
Combined devices
Generating plants
123 25F, 123568, 123 1A, F02B 4308, F02B 1900, F02B 4700
Patent
active
042443288
ABSTRACT:
An improved process and apparatus for preparing a gaseous mixture of hydrocarbon and carbon monoxide to be supplied to the air/fuel mixture of a combustion engine is disclosed. The process and apparatus are useful in reducing the amount of noxious components and aldehydes in the engine exhaust gas. In one embodiment of the invention, an improved process and combustion engine are provided for reducing the noxious components and aldehydes. Recycled, water vapor-containing exhaust gas is mixed with at least one lower alcohol. Subsequently, the lower alcohol is catalytically steam reformed in the presence of the exhaust gas to form a gaseous mixture of hydrogen and carbon monoxide, at least a portion of the water vapor and energy required for the steam reforming being provided by the exhaust gas. The hydrogen/carbon monoxide mixture is combined with a mixture of air and a disparate primary engine fuel, and the combined mixture is supplied to a combustion zone wherein the mixture is combusted to produce an exhaust gas having a reduced amount of noxious components and aldehydes. Preferably, the lower alcohol is methanol, the primary fuel is gasoline, and the steam reforming is carried out in the presence of a noble metal catalyst or a nickel catalyst.
REFERENCES:
patent: 3717129 (1973-02-01), Fox
patent: 3963000 (1976-06-01), Kosaka et al.
patent: 3968775 (1976-07-01), Harpman
patent: 4003343 (1977-01-01), Lee
patent: 4086877 (1978-05-01), Henkel et al.
patent: 4088450 (1978-05-01), Kosaka et al.
patent: 4143620 (1979-03-01), McGuchi et al.
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