Filters for polynuclear aromatic hydrocarbon-containing smoke

Details Filters for polynuclear aromatic hydrocarbon-containing smoke Filters for polynuclear aromatic hydrocarbon-containing smoke

1981-10-23

1985-05-21

Millin, V.

Tobacco

Smoke separator or treater

By chemical reaction, e.g., ion-exchange, chelating,...

131339, 131342, 55389, A24D 308, A24D 310, A24D 312, A24D 314

Patent

active

045179956

ABSTRACT:
The present invention provides a filter for a polynuclear aromatic hydrocarbon containing smoke. In one embodiment, the filter is used in combination with an exhaust system of an internal combustion engine or in combination with an industrial smoke stack. In this embodiment, the filter includes a filtering material and a PAH-reducing amount of at least one purine. In another embodiment, the filter includes a filtering material of a certain type and a PAH-reducing amount of at least one purine. In a related embodiment, the filter includes a filtering material and a PAH-reducing amount of at least one purine free from tannic acid contamination. In each instance, the purine is distributed on the surface of the filtering material.

REFERENCES:
patent: T901024 (1972-08-01), Sloan
"Fluorescence of 1,3,7,9-Tetramethyluric Acid Complexes of Aromatic Hydrocarbons" by Van Duuren, The Journal of Physical Chemistry, Mar. 31, 1964.

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