Pinch Location of the Hydrogen Network with Purification Reuse

doi:10.1016/S1004-9541(13)60637-0

Chin.J.Chem.Eng. ›› 2013, Vol. 21 ›› Issue (12): 1332-1340.DOI: 10.1016/S1004-9541(13)60637-0

• PROCESS SYSTEMS ENGINEERING • Previous Articles Next Articles

Pinch Location of the Hydrogen Network with Purification Reuse

LIU Guilian¹, LI Hao², FENG Xiao³, DENG Chun³

1 Department of Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China;
2 WISDRI Engineering & Research Incorporation Limited, Wuhan 430223, China;
3 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

Received:2012-07-06 Revised:2012-10-07 Online:2013-12-27 Published:2013-12-28
Supported by:
Supported by the State Key Development Program for Basic Research of China (2012CB720500), the National Natural Science Foundation of China (21276205, 20936004) and the State Key Laboratory of Heavy Oil Processing.

Pinch Location of the Hydrogen Network with Purification Reuse

刘桂莲¹, 黎浩², 冯霄³, 邓春³

1 Department of Chemical Engineering, School of Chemical Engineering and Technology, Xi'an Jiaotong University, Xi'an 710049, China;
2 WISDRI Engineering & Research Incorporation Limited, Wuhan 430223, China;
3 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, China

通讯作者: LIU Guilian
基金资助:
Supported by the State Key Development Program for Basic Research of China (2012CB720500), the National Natural Science Foundation of China (21276205, 20936004) and the State Key Laboratory of Heavy Oil Processing.

Abstract

Abstract: In the hydrogen network with the minimum hydrogen utility flow rate, the pinch appears at the point with zero hydrogen surplus, while the hydrogen surpluses of all the other points are positive. In the hydrogen purity profiles, the pinch can only lie at the sink-tie-line intersecting the source purity profile. According to the alternative distribution of the negative and positive regions, the effect of the purification to the hydrogen surplus is analyzed. The results show that when the purification is applied, the pinch point will appear neither above the purification feed nor between the initial pinch point and the purification feed, no matter the purification feed lies above or below the initial pinch point. This is validated by two case studies.

Key words: purification, pinch, hydrogen network, hydrogen surplus, hydrogen utility flow rate

摘要： In the hydrogen network with the minimum hydrogen utility flow rate, the pinch appears at the point with zero hydrogen surplus, while the hydrogen surpluses of all the other points are positive. In the hydrogen purity profiles, the pinch can only lie at the sink-tie-line intersecting the source purity profile. According to the alternative distribution of the negative and positive regions, the effect of the purification to the hydrogen surplus is analyzed. The results show that when the purification is applied, the pinch point will appear neither above the purification feed nor between the initial pinch point and the purification feed, no matter the purification feed lies above or below the initial pinch point. This is validated by two case studies.

关键词: purification, pinch, hydrogen network, hydrogen surplus, hydrogen utility flow rate

LIU Guilian, LI Hao, FENG Xiao, DENG Chun. Pinch Location of the Hydrogen Network with Purification Reuse[J]. Chin.J.Chem.Eng., 2013, 21(12): 1332-1340.

刘桂莲, 黎浩, 冯霄, 邓春. Pinch Location of the Hydrogen Network with Purification Reuse[J]. Chinese Journal of Chemical Engineering, 2013, 21(12): 1332-1340.

References

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Pinch Location of the Hydrogen Network with Purification Reuse

Pinch Location of the Hydrogen Network with Purification Reuse

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