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Abstract�� For the preheating system of crude oil in the atmospheric-vacuum distillation unit of refinery,applying pinch technique and TI method, an initial network with the characteristics of recovering energy to the greatest extent was established. Furthermore, basing on energy lax principle and branch adjustment technique,the optimum structural adjustment of this initial network was parformed.

Keywords�� s: pinch technology; heat exchanger network;optimum design

Received 1995-07-15;

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ղ��ƽ.��ͳ��ѹ��λ��[J]. ��ѧ��ҵ�빤��, 1995,12(3): 38-42

Zhan Shiping .The Optimun Design of Heat Exchanger Network in Atmospheric-Vacuum Distillation Unit of Petroleum Refinery Plant[J]. Chemcial Industry and Engineering, 1995,12(3): 38-42