Abstract
The work is devoted to the research of the heat exchanger system of the hydrogenation stabilizer unit at the installation of light hydrocracking in order to determine the degree of efficiency of heat exchange and the magnitude of the available energy saving potential, as well as to build a modernized network of heat exchangers of the technological process. Pinch analysis was used as the basic calculation and design method. The process composite curves and the grid diagram are constructed, pinch localization and the minimum temperature difference ∆Tmin are determined for the existing scheme. For the new value of ∆Tmin, the possible recovery and magnitudes of cold and hot utilities were calculated, a grid diagram and composite curves of the process heat transfer system were constructed. The achieved primary energy savings are estimated at 2.1 MW, which is about 51.5% of the initial energy value of the process's external coolants.
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