The
Flexible Design for Optimization and Debottlenecking of Multiperiod Hydrogen Networks
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Type
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Journal
Article
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Author
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Xiaoqiang
Liang
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Author
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Lixia
Kang
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URL
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Volume
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55
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Issue
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9
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Pages
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2574-2583
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Publication
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Industrial
& Engineering Chemistry Research
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Date
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March
9, 2016
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Abstract
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The
operating conditions of hydrogen networks in refineries fluctuate due to
variation of feed properties, loss of catalyst activity, change of market
demand, seasonal shift, and improvements in processing technology. Such
fluctuations can affect the hydrogen network operation. Typically, these
networks are optimized on the basis of fixed operational conditions. Authors
present a flexible design method of a multiperiod hydrogen network. It
features the flexible design of multiperiod hydrogen network by considering
discrete operational scenarios in multiple periods and possible fluctuation
of each operational scenario.
The optimal design of the multiperiod hydrogen network with simple structure and low total annual costs can be obtained using their method. Furthermore, the bottlenecks restricting the flexibility of each subperiod can be identified and eliminated. In addition, the method can be readily implemented. A multiperiod hydrogen system in a refinery is used to exemplify the proposed method. Results demonstrate that the method can be used to effectively obtain the hydrogen network structure that satisfies the multiperiod operational conditions and reach the flexibility requirements for each subperiod with the lowest total annual costs. |
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