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Flow-Thermal Calculation of E10 Reboiler in the Process of Desorption of Light Hydrocarbons in the Plant “LPG Refinery” Elemir

In this paper, the flow-thermal calculation of reboiler E10 in the process of desorption of light hydrocarbons, which is located in the bottom of the column for stabilization (desorption) of rich absorption oil in the plant "Refinery TNG", Elemir. In reboiler E10, heat is exchanged between warm oil (warmer fluid) and rich absorption oil (colder fluid). The observed reboiler E10 represents a heat exchanger with the so-called two passages. Warmer fluid flows inside the exchanger tube, in two passes; while the absorption oil flows through the annular space in one pass. It is assumed that in the E 10 reboiler, based on the data from the technical-technological documentation, the calculation of the relevant current and thermal quantities required for the process of heating the rich absorption oil can be performed. The results of the control flow-thermal calculation confirmed that the assumed value of the pipe length (and the values that result from and are relevant for the calculation) coincides with the value of the pipe length calculated in the realized calculation for reboiler E10. In this way, the correctness of the used equations for the subject calculation was confirmed. A complete overview of flow and thermal quantities in practice completely describes the operation of the E10 reboiler for heating rich absorption oil.