STP244: Incompatibility of Distillate Fuels

    Ward, CC
    Chemical Engineer, Petroleum Experiment Station, Bureau of Mines, Bartlesville, Okla.

    Schwartz, FG
    Chemical Engineer, Petroleum Experiment Station, Bureau of Mines, Bartlesville, Okla.

    Pages: 6    Published: Jan 1959


    Abstract

    The current practice of blending straight-run and cracked fuels to supply the expanding market for burner fuels has shown that some blends of fuels are incompatible, which results in troublesome gum deposits. However, few laboratory data were available to show the types of fuel that were incompatible and the degree of incompatibility. A program conducted by the Bureau of Mines, in cooperation with the Western Petroleum Refiners Assn., included several hundred blends of distillate fuels for study of several variables involved in storing blended fuels. Storage of these blends and determination of the amounts of gum formed showed that: 1. Blends may be compatible, incompatible, or supercompatible, 2. The blend of maximum incompatibility depends upon the components of the blend, 3. Blends of straight-run and catalytically cracked fuels show the highest frequency of incompatibility, 4. Solubility is a minor factor in the incompatibility of fuels, and 5. The storage stability of a blend cannot be predicted from the storage stability of its components.


    Paper ID: STP39346S

    Committee/Subcommittee: D02.09

    DOI: 10.1520/STP39346S


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