Abstract
Using skid-mounted natural gas to hydrogen generator in hydrogen refueling station can significantly reduce the cost of hydrogen. In 2021, China successfully built the first 250 Nm3/h on-site skid-mounted natural gas to hydrogen generator, which was successfully debug-ed in Foshan, providing hydrogen products with purity ≥99.999% for FCVs. This paper summarized the technological process and development, analyzed the risk and the safety design of skid-mounted natural gas to hydrogen generator. Several key factors affecting compactness are analyzed, including process and technical route, reforming reformer and catalyst, heat exchange network, heat exchanger and steam generation system, PSA unit and overall integrated design, etc. In addition, innovative strategies to optimize the compactness of the device are given from the aspects of process flow, reforming reformer and steam generation system.The suggestions are put forward for the development and application of on-site skid-mounted natural gas to hydrogen generator.
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