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基于夹点技术的加氢裂化装置换热网络节能改造

作者:时间:2014-06-20点击数:

全文下载:2012040391

肖圣专, 孙晓岩, 高凯, 项曙光*

 (青岛科技大学 炼油化工高新技术研究所,山东 青岛266042)

 摘要: 基于炼油厂加氢裂化装置现行换热网络,利用夹点技术对其进行分析改造,得到了较好的节能效果。首先以夹点温差为20 ℃,计算得出该装置换热网络的夹点温度为125 ℃,最小热公用工程量为10 449 kW,最小冷公用工程量为49 193 kW;针对换热网络不合理的情况提出节能改造方案,然后对提出的节能方案进行严格模拟,确定该方案可节省57.89%的热公用工程和27.76%的冷公用工程,投资回收期为1.2 a。

 关键词: 加氢裂化装置; 换热网络; 夹点技术; 节能

中图分类号: TE 08文献标志码: A

 Energy Saving Revamping of the Hydrocracking Equipments Based on the Heat Exchanger Network

 XIAO Sheng-zhuan, SUN Xiao-yan, GAO Kai, XIANG Shu-guang

 (Institute for Petroleum and Chemical Industry, Qingdao University Science and Technology,

 Qingdao 266042,China)

 Abstract:Based on the present heat exchanger network of some hydrocracking equipment, an energy saving retrofit scheme was put forward which can get a good energy saving effect. Given pinch temperature difference 20 ℃, the minimal requirement of the hot utility and the minimal requirement of the cold utility were 10 449 kW and 49 193 kW,respectively.Considering the improper matches of the heat exchanger network, a retrofit energy saving scheme was used to simulate the scheme strictly. Hot utility requirement saves 57.89%, cold utility requirement saves 27.76%, the payback period for the scheme is 1.2 a.

 Key words: hydrocracking equipment; heat exchanger network; pinch technology; energy-saving

收稿日期:2011-12-21

作者简介: 肖圣专(1986—),女,硕士研究生.*通信联系人.

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