January 2021

Heat Transfer

Selection and comparison of thermic fluids in a fired heater

Hot oil, also called thermic fluid, is a heat transfer fluid (HTF) used in oil refineries and chemical plants.

Karre, A. V., Worley Group Inc.; Valsaraj, K. T., Cain Department of Chemical Engineering, Louisiana State University

Hot oil, also called thermic fluid, is a heat transfer fluid (HTF) used in oil refineries and chemical plants. HTF transfers heat to the process fluid using sensible heat. Many limitations exist to using steam as a heat source. The steam pressure must be high enough to get the high temperatures required for the process; a steam system also requires water treatment and condensate collection systems; and steam systems are also a common leak point within plants. Conversely, steam is non-toxic and non-flammable, so there is zero negative impact to the environment. Hot oil can also leak, but it does not require a high-pressure system. By selecting an appropriate HTF, high temperatures can easily

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