Method for improving the long-term color stability of jet fuel

Details Method for improving the long-term color stability of jet fuel Method for improving the long-term color stability of jet fuel

1992-12-11

1994-11-01

Walsh, Donald P.

Mineral oils: processes and products

Refining

Nitrogen contaminant removal

208266, 208273, 208254H, 44300, C10G 1706

Patent

active

H00013684

ABSTRACT:
A method for improving the long-term color stability of jet fuel and jet fuel blends containing nitrogen compounds, by intimately mixing the jet fuel with a quantity of concentrated sulfuric acid sufficient to remove at least about ninety percent (90%) of said nitrogen compounds during a contact time equal to less than five (5) minutes, separating the jet fuel from the concentrated sulfuric acid, mixing the jet fuel with an aqueous caustic solution to remove residual acid from the jet fuel, separating the jet fuel from the aqueous caustic solution, mixing the jet fuel with water, and separating the jet fuel from the water.

REFERENCES:
patent: Re31363 (1983-08-01), Stover
patent: 2882225 (1959-04-01), Johnston, Jr.
patent: 2999807 (1961-09-01), Buningh et al.
patent: 3487012 (1969-12-01), Plummer et al.
patent: 4231858 (1980-11-01), Seitzer et al.
patent: 4539096 (1985-09-01), Rudnick

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