Retrofit of Atmospheric Heat Exchanger Network in Shiraz Petroleum Refinery

In order to reduce the cost of production, reduction in energy consumption is one of the most important priorities. Distillation unit at the Shiraz refinery is one of the most energy consuming units. This section consists of atmospheric distillation, vacuum distillation, stabilizer and visbreaker. Several valuable works have been done in this regard, however, due to energy wise, actually some of these proposals have failed to solve the problems of heat exchanger networks. Nevertheless suggestions were presented in this paper for distillation section is practical and feasible. Due to restrictions such as constraint match, replacement pump and other engineering problems, two scenarios have been proposed assuming constant pressure drop and . The results show that, 313,000 Euros and 696,725 Euros will be invested in order to reduce energy consumption of 13.7% and% 15.6 %, respectively.