Optimal design of hydrogen network with minimum compression work

doi:10.11949/j.issn.0438-1157.20151393

CIESC Journal ›› 2015, Vol. 66 ›› Issue (12): 4883-4887.DOI: 10.11949/j.issn.0438-1157.20151393

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Optimal design of hydrogen network with minimum compression work

DENG Chun¹, ZHOU Yuhang¹, ZHOU Yeyang¹, FENG Xiao²

1 State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing 102249, China;
2 School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China

Received:2015-09-06 Revised:2015-09-30 Online:2015-12-05 Published:2015-12-05
Supported by:
supported by the National Basic Research Program of China(2012CB720500), the National Natural Science Foundation of China (U1162121,21276204) and the Science Foundation of China University of Petroleum, Beijing (2462015YQ0305).

具有最小压缩功的氢网络优化设计

邓春¹, 周宇航¹, 周业扬¹, 冯霄²

1 重质油国家重点实验室, 中国石油大学(北京)化学工程学院, 北京 102249;
2 西安交通大学化学工程与技术学院, 陕西西安, 710049

通讯作者: 邓春
基金资助:
国家重点基础研究发展计划项目(2012CB720500);国家自然科学基金项目(U1162121,21276204);中国石油大学(北京)科研基金项目(2462015YQ0305)。

Abstract

Abstract:

Hydrogen consuming units in refineries are operated in high pressure, thus some makeup hydrogen and recycle hydrogen compressors are utilized to increase the pressure of hydrogen streams. It leads to a large increase on compression work and operating cost. Therefore, except for the minimizing the flowrate of hydrogen utility, it is extremely important to reduce the compression work when optimizing hydrogen network. In this paper, based on the concept of the nearest neighbors algorithm, pressure constraints are taken into consideration, a novel nearest neighbors algorithm as well as pressure-impurity concentration diagram are proposed to design hydrogen network with minimum compression work. The results for the case study show that the minimum compression work achieves 16.435 MJ, and the number of compressor is nine which is two less than that in the literature.

Key words: process systems, optimal design, hydrogen, graphical approach, compression work, nearest neighbors algorithm

摘要：

炼油厂用氢装置多在高压下操作,为此配置有很多新氢和循环氢压缩机用于提升氢气流股的压力,从而消耗大量的压缩功,同时大量地增加了炼油厂的操作费用。因此,氢网络的优化,除了需要优化氢气公用工程的用量,减少整个网络的压缩功也十分重要。本文借鉴邻近算法的思想,进一步考虑压力约束,提出了改进邻近算法以及压力-浓度图,能够设计具有最小压缩功的氢网络。案例分析所求得的最小压缩功为16.435 MJ,压缩机数目为9个,比文献优化结果减少两个。

关键词: 过程系统, 优化设计, 氢, 图示法, 压缩功, 邻近算法

CLC Number:

TQ021.8

DENG Chun, ZHOU Yuhang, ZHOU Yeyang, FENG Xiao. Optimal design of hydrogen network with minimum compression work[J]. CIESC Journal, 2015, 66(12): 4883-4887.

邓春, 周宇航, 周业扬, 冯霄. 具有最小压缩功的氢网络优化设计[J]. 化工学报, 2015, 66(12): 4883-4887.

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Optimal design of hydrogen network with minimum compression work

具有最小压缩功的氢网络优化设计

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