Cost-optimal design and operation of hydrogen refueling stations with mechanical and electrochemical hydrogen compressors

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作   者：

Georgia Ioanna Prokopou;  Johannes M.M. Faust;  Alexander Mitsos;  Dominik Bongartz; 

作者机构：

52056 Aachen;  RWTH Aachen University;  Germany;  KU Leuven;  52425 Juelich;  Germany||Department of Chemical Engineering;  3001 Leuven;  Process Systems Engineering (AVT.SVT);  Germany||JARA-ENERGY;  Department of Chemical Engineering;  Germany||Energy Systems Engineering (ICE-1);  Forschungszentnm Juelich;  52074 Aachen;  Belgium; 

关键词：

Hydrogen refueling station;  Electrochemical hydrogen compressor;  Cost-optimal sizing & operation;  Mechanical compressor; 

期刊名称：

Computers & Chemical Engineering

i s s n：

0098-1354

年卷期：

2025 年 192 卷 Jan. 期

页   码：

108862.1-108862.13

页   码：

摘   要：

Hydrogen refueling stations (HRS) can cause a significant fraction of the hydrogen refueling cost. The main cost contributor is the currently used mechanical compressor. Electrochemical hydrogen compression (EHC) has recently been proposed as an alternative. However, its optimal integration in an HRS has yet to be investigated. In this study, we compare the performance of a gaseous HRS equipped with different compressors. First, we develop dynamic models of three process configurations, which differ in the compressor technology: mechanical vs. electrochemical vs. combined. Then, the design and operation of the compressors are optimized by solving multi-stage dynamic optimization problems. The optimization results show that the three configurations lead to comparable hydrogen dispensing costs, because the electrochemical configuration exhibits lower capital cost but higher energy demand and thus operating cost than the mechanical configuration. The combined configuration is a trade-off with intermediate capital and operating cost.