Oxidation of selected organosulfur compounds in dodecane over a heated metal surface

Conference · Sun Jan 01 04:00:00 EST 1989 · Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA)

OSTI ID:5043900

Morris, R E; Mushrush, G W ^[1]

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1. Naval Research Lab., Washington, DC (USA)

The use of jet fuel as a heat exchange medium imposes significant levels of thermal stress. Hydrocarbon fuels subjected to such temperatures have been shown to undergo considerable degradation. This observed degradation can be manifested by the formation of deposits on heat exchanger surfaces, on filters, in nozzles and on combustor surfaces. Heteroatoms, i.e., oxygen, nitrogen and sulfur and ash have been found to comprise as much as 40% of such deposits. It is difficult to identify specific reaction pathways from studies of fuels, which are complex mixtures. Model studies have been utilized to determine trace reaction products. These model studies were conducted in sealed borosilicate glass tubes at 120{degree}C for up to 60 min. From the t-butylhydroperoxide (tBHP) initiated oxidation of dodecane thiol and hexyl sulfide the major oxidation products were the dodecyl disulfide and hexyl sulfoxide, respectively. Similar studies revealed the major product of the oxidation of thiophenol by tBHP or oxygen to be phenyl disulfide. The authors have utilized their modified JFTOT apparatus as a first step in determining the applicability of the findings from the model studies with changes occurring in aircraft fuel systems. This paper describes studies of the oxidation of thiophenol and hexyl disulfide in dodecane during stress in the JFTOT.

• OSTI ID: 5043900
• Report Number(s): CONF-8904162--
• Conference Information: Journal Name: Preprints of Papers, American Chemical Society, Division of Fuel Chemistry; (USA) Journal Volume: 34:2
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ALKANES
CHEMICAL REACTIONS
DATA
DISULFIDES
DODECANE
ELEMENTS
EXPERIMENTAL DATA
FLUIDS
FUELS
HEATING
HYDROCARBONS
INFORMATION
JET ENGINE FUELS
LIQUIDS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDATION
OXYGEN
THIOPHENOLS