Method and apparatus for producing diesel fuel oil from waste ed

Details Method and apparatus for producing diesel fuel oil from waste ed Method and apparatus for producing diesel fuel oil from waste ed

1998-09-03

1999-10-26

Johnson, Jerry D.

Fuel and related compositions

Liquid fuels

Containing organic -c

44386, C10L 102

Patent

active

059720573

ABSTRACT:
A production method of diesel fuel oil from waste oil, in which a vegetable diesel fuel oil can be obtained by utilizing as a raw material a waste edible oil dumped from restaurant, food industry, home, etc. and scarcely utilized. The production method comprises the steps of: removing solid materials contained in a waste edible oil; heating the waste edible oil from which solid materials have been removed to a predetermined temperature, thereby removing moisture and materials of odor contained in the waste edible oil by evaporation; dissolving in alcohol a catalyst composed of alkaline material, thereby preparing an alcoholic solution containing the catalyst; mixing the waste edible oil with the alcoholic solution containing the catalyst and stirring the waste edible oil and alcoholic solution, thereby obtaining a reaction product; separating said reaction product into a light solution and a heavy solution; mixing the light solution with a solid absorbent, thereby impurities contained in the light solution being absorbed by the solid absorbent; separating and removing the solid absorbent from a mixture of the solid absorbent having absorbed the impurities and the light solution; and mixing the heavy solution with a neutralizer to neutralize the catalyst composed of alkaline material contained in the heavy solution.

REFERENCES:
patent: 4364743 (1982-12-01), Erner
patent: 4695411 (1987-09-01), Stern et al.
patent: 5424466 (1995-06-01), Stern et al.
patent: 5424467 (1995-06-01), Bam et al.
patent: 5525126 (1996-06-01), Basu et al.

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