In this paper, the functional safety evaluation of the safety protection system of gasoline hydrogenation unit was carried out using Petri net.Firstly, the principle and framework of the gasoline hydrogen refueling unit was described.Secondly, the safety integrity level was introduced, and the influencing factors of the safety integrity level were summarized.Thirdly, the Petri net model and the Markov model are compared and the Petri net model is used to verify its security integrity level.Finally, the calculation result demonstrated that the SIL did not reach the target level, and then reached the target level after improvement.This analysis method can provide reference for the safety integrity level evaluation of similar devices.
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Wang et al. (2024) studied this question.
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