Effects of organosulfur compounds upon the storage stability of Jet A fuel

Technical Report · Sat Aug 01 04:00:00 EDT 1981

OSTI ID:6158433

Heneman, F C

The effect of sulfur-containing compounds on the storage stability of Jet A fuel was investigated. Test blends were prepared from Jet A fuel and a number of organic sulfur compounds of various types. The blends were stored in flint glass bottles at 121/sup 0/ C, 130/sup 0/ C, or 135/sup 0/ C for time periods ranging from 24 hours to 168 hours (7 days). The microscope cover slip technique developed by Worstell was utilized to determine the amount of insoluble deposits. Thiols and thiophene derivatives increased the deposit formation rate compared to that of pure jet fuel, and the rate of deposition was a function of the concentration of the individual sulfur compounds. Alkyl sulfides and disulfides decreased the deposit formation rate. No induction period was observed with any of the test blends or temperatures studied. Arrhenius plots of deposition versus temperature were linear over the 121 to 135/sup 0/ C range studied. Measurement of relative basicities of the sulfur compounds by proton NMR in conjunction with the storage experiments suggested that alkyl sulfides and alkyl thiols influenced deposition rate through base catalysis. The inhibiting mechanism of alkyl sulfides appeared to be a result of sulfur's reactivity with intermediate soluble precursors to deposits in Jet A fuel.

• Research Organization: Colorado School of Mines, Golden (USA)
• OSTI ID: 6158433
• Report Number(s): AD-A-103486
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
024000* -- Petroleum-- Storage-- (-1989)
CHALCOGENIDES
CHEMICAL REACTION KINETICS
DISULFIDES
FUELS
HEAT TREATMENTS
HETEROCYCLIC COMPOUNDS
JET ENGINE FUELS
KINETICS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
REACTION KINETICS
SEDIMENTS
STABILITY
STORAGE
SULFIDES
SULFUR COMPOUNDS
SYNTHESIS
TEMPERATURE DEPENDENCE
THIOLS
THIOPHENE