Optimization of hydrogen distribution systems with pressure constraints |
| |
| Authors: | Ye Ding Xiao Feng Khim H. Chu |
| |
| Affiliation: | 1. Department of Chemical Engineering, Xi’an Jiaotong University, Xi’an 710049, Xi’an, China;2. College of Chemical Engineering, China University of Petroleum, Beijing 102249, China;1. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, 18 Fuxue Rd., Changping, Beijing 102249, China;2. Karamay Petrochemical Company Design, Karamay 834003, Xinjiang Autonomous Region, China;3. New Energy Institute, China University of Petroleum, Beijing 102249, China;1. State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Beijing, 102249, China;2. Department of Chemical Engineering, National Taiwan University, Taipei, 10617, Taiwan;3. Institute of New Energy, China University of Petroleum, Beijing, 102249, China;1. Department of Chemical Engineering, University of Sistan and Baluchestan, P.O. Box 98164-161, Zahedan, Iran;2. Department of Mechanic Engineering, University of Sistan and Baluchestan, Zahedan, Iran;3. Department of Chemical Engineering, International Campus, University of Sistan and Baluchestan, Chabahar, Iran;1. State Key Laboratory of Chemical Engineering, Department of Chemical and Biological Engineering, Zhejiang University, Hangzhou, Zhejiang 310027, PR China;2. Chemical Engineering Department, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong |
| |
| Abstract: | Hydrogenation units are often operated at high pressure, requiring the use of compressors which are one of the most expensive chemical processing equipment. Optimizing a hydrogen network should therefore take into consideration not only purity and flowrate constraints but also pressure requirements. In this paper, based on the hydrogen surplus diagram approach, the average pressure profiles of hydrogen sources and sinks are proposed through the introduction of a system’s minimum pressure drop Δp. Combined with the traditional purity profiles, whether a source can meet a sink either for hydrogen concentration or for pressure requirements can be determined intuitively. In cases where the pressure of a source is not sufficient for a sink, installing a hydrogen compressor or using another source with higher purity and pressure could be potential solutions. A cost equation is established to determine which of the two solutions is economically more viable. For different matching situations between sources and sinks, strategies for optimum placement of compression equipment within a given hydrogen network are proposed. A case study is used to illustrate the application and effectiveness of the proposed method. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
