Reconstruction of a heat exchanger network under industrial constraints - the case of a crude distillation unit

被引：17

作者：

Markowski, M ^{[1
]}

机构：

[1] Warsaw Univ Technol, Dept Proc Equipment, PL-09402 Plock, Poland

来源：

APPLIED THERMAL ENGINEERING | 2000年 / 20卷 / 15-16期

关键词：

pinch technology; pinch point; composite curve; grand composite curve;

D O I：

10.1016/S1359-4311(00)00022-3

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Heat exchanger network retrofit using a pinch based approach is presented. In this approach, the criterion of minimum sensitivity of heat exchanger to fouling effects is accounted for. The present paper introduces this criterion without explaining its details that are described in the literature. A summary is given of WEN reconstruction in a crude distillation unit processing 4.2 million ton crude oil per year. While the total heat quantity of hot streams is 110 MW, the heat recovery in the existing HEN is 60 MW, Using Pinch Analysis, the target value of heat recovery at Delta T-min = 10 K was determined at 91 MW, Measurements were carried out on the existing HEN with the aim to determine the influence of fouling effects on the heat transfer in the exchangers. Taking local constraints including fouling into account, WEN reconstruction was proposed. The heat savings in the reconstructed HEN was estimated at 75 MW. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：1535 / 1544

页数：10