Accession Number : ADD015654

Title :   Method for Assessing Distillate Fuel Stability by Oxygen Overpressure.

Descriptive Note : Patent, Filed 27 Jun 89, patented 10 Nov 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hardy, Dennis R ; Beal, Erna J ; Burnett, Jack C

Report Date : 10 Nov 1992

Pagination or Media Count : 7

Abstract : Reactions leading to insoluble sediments formation in distillate fuel are accelerated by forcing oxygen into solution in the fuel at pressures of between about 90 and 110 psig and then stressing the fuel under conditions of accelerated storage at temperatures of between about 40 deg C. to 100 deg C. The method then makes use of gravimetric determination of the total insolubles formed. The stability of the fuel over a period of time as well as its comparative stability to other fuels can then be predicted from the amount of insolubles formed. The method can be carried out by using a specialized pressure vessel.

Descriptors :   *DISTILLATES, *FUELS, *OXYGEN, *STABILITY, *PATENTS, *OVERPRESSURE, DETERMINATION, PRESSURE VESSELS, SEDIMENTS, STORAGE, TEMPERATURE, TIME, STRESSES, SOLUBILITY, ACCELERATION

Subject Categories : Fuels
      Fluid Mechanics
      Inorganic Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE