STP224

    The Separation of High-Boiling Petroleum Oils by Thermal Diffusion

    Published: Jan 1958


      Format Pages Price  
    PDF Version (404K) 11 $25   ADD TO CART
    Complete Source PDF (19M) 11 $87   ADD TO CART


    Abstract

    Among the many laboratory processes in use today for the separation of heavy petroleum oils, thermal diffusion is recognized as a unique method of great future potentiality. Work to date by several investigators (1–3, 7, 9, 11, 12, 13) has demonstrated that remarkable separations can be achieved with relatively simple apparatus. It is believed that even more impressive use can be made of thermal diffusion with the development of more efficient apparatus and with a more thorough understanding of the basic principles of operation. There is also a need for a more practical determination of the mathematical relationships involved. In our laboratory the investigation of thermal diffusion has passed through several stages. The first was a study of a large number of mixtures of pure compounds, and the second involved separation and determination of the composition of a light and a medium lubricating oil. At present a critical evaluation is being made of column efficiency and methods for improving the degree of separation. The results of both the compositional study of lubricating oil and the study of efficiency of a multicolumn assembly are given below


    Author Information:

    Melpoldee, F. W.
    The Atlantic Refining Co., Philadelphia, Pa.

    Sauer, R. W.
    The Atlantic Refining Co., Philadelphia, Pa.

    Washall, T. A.
    The Atlantic Refining Co., Philadelphia, Pa.


    Paper ID: STP46919S

    Committee/Subcommittee: D02.02

    DOI: 10.1520/STP46919S


    CrossRef ASTM International is a member of CrossRef.