Abstract
ABSTRACTPinch technology has now developed into a powerful tool for heat integration of petroleum refining processes. Each process within the refinery has its own constraints against pinch analysis. In order to overcome these constraints, many applications and their solutions have been presented, such as decomposition policy and pressure drop considerations. These studies show that pinch analysis will only be suitable within the known limitations. In traditional refineries, the hydrocracking process is considered important due to the high pressures. The process converts gas oil feedstock into kerosene, diesel fuel and high‐quality gasoline. In this paper, we have focused on the retrofitting of a typical hydrocracking process at Tehran South Refinery (Chevron License) operating at 130–180 atm with significant energy consumption. The potential and opportunities for heat integration in this process were considered. The objective of this study is to demonstrate how to apply alternative heat integration approaches, recover the maximum waste heat and maintain stable production while taking into account the operational constraints and plant equipment limitations. In this survey, several projects were identified which resulted in $ 870 000 annual saving in energy costs. Copyright © 2010 Curtin University of Technology and John Wiley & Sons, Ltd.
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