Pinch Location of the Hydrogen Network with Purification Reuse

刘桂莲; 黎浩; 冯霄; 邓春

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

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Pinch Location of the Hydrogen Network with Purification Reuse

过程系统工程与过程安全 | Updated：2026-01-06

- Pinch Location of the Hydrogen Network with Purification Reuse
- Chinese Journal of Chemical Engineering Vol. 21, Issue 12, Pages: 1332-13401004-954160637-0(2013)
- Affiliations：
  
  1. 2 WISDRI Engineering & Research Incorporation Limited,Wuhan,China,430223
  2. 3 State Key Laboratory of Heavy Oil Processing, China University of Petroleum,Beijing,China,102249
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(13)60637-0
  CLC：
- Published：2013
- Accepted：
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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.
DOI：

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. DOI： 10.1016/S1004-9541(13)60637-0.

摘要

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.

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