Research on safety sustainability of LNG tanks based on multi-attribute decision-making-FCEM coupled modeling

Dehong  Zhou; Peihe Zhang; Jingyi Zang; Shiyu Peng

doi:10.59400/adecp3307

Research on safety sustainability of LNG tanks based on multi-attribute decision-making-FCEM coupled modeling

Dehong Zhou Wuhan Institute of Technology, Wuhan 430074, China
Peihe Zhang Wuhan Institute of Technology, Wuhan 430074, China
Jingyi Zang Wuhan Institute of Technology, Wuhan 430074, China
Shiyu Peng Wuhan Institute of Technology, Wuhan 430074, China

Article ID: 3307

(This article belongs to the Special Issue Mathematical Analysis Advances in System Fault Analysis, Prediction and Control (Close))

Keywords: Network hierarchy analysis; CRITIC method; Fuzzy comprehensive evaluation; LNG tanks; Safety sustainability risk analysis; Sustainable development

Abstract

Against the backdrop of the “dual carbon goals”, China has been advancing its “coal-to-gas transition” strategy, during which LNG leakage incidents have occurred frequently. Addressing the challenge of assessing the interrelated risks of multiple factors, this study constructs an ANP-CRITIC-FCEM coupled model, establishing a micro-level risk identification system from five dimensions: “environment, equipment, process, personnel, and materials”. Considering the conflicts and mutual influences between different risk factors, the model integrates game theory to couple subjective and objective weights and combines fuzzy comprehensive evaluation to quantify safety and sustainable development capabilities. The study indicates that the safety and sustainable development capability level of a certain factory’s LNG storage tank area is Grade IV, with equipment factors dominating as the primary risk source, with a comprehensive weight of 0.5205. Among these, pipeline C22 and safety accessory C23 have a significant impact on the tank’s sustainable development capability; This model improves the accuracy of traditional AHP-FCEM identification, fully considers the influence and conflicts between various factors, visualizes the influence sensitivity between factors, and identifies process factors (25.36% weight) such as pressure regulation process (40.28% sub-weight), personnel “three violations” behavior (69.01% sub-weight), and methane concentration (64.35% sub-weight) constitute secondary key risks. Based on this, targeted improvement strategies are proposed, including equipment-level corrosion monitoring, process-level intelligent pressure regulation, and management-level behavioral analysis and early warning, providing a data-driven framework for the coordinated advancement of LNG storage tank safety management and dual carbon goals. Through comparative analysis, this model is found to be relatively accurate and effective.

Published

2025-11-10

How to Cite

Zhou, D., Zhang, P., Zang, J., & Peng, S. (2025). Research on safety sustainability of LNG tanks based on multi-attribute decision-making-FCEM coupled modeling. Advances in Differential Equations and Control Processes, 32(4). https://doi.org/10.59400/adecp3307

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Issue

Vol. 32 No. 4 (2025)

Section

Article

This work is licensed under a Creative Commons Attribution 4.0 International License.

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