Risk assessment of an LNG storage tank release Case study of LNG storage unit in Skikda LNG terminal

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Date
2022-06-01
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ALGERIAN JOURNAL OF SIGNALS AND SYSTEMS (AJSS).Vol. 7, Issue 2.pp53-60
Abstract
Liquefied natural gas (LNG) terminals ensure the production, storage and transportation of LNG. Therefore, it assembles critical equipment that can cause hazards to personnel, assets and the environment. This paper presents a risk assessment for an LNG storage tank release in an LNG terminal. Risk assessment was conducted by applying a HAZOP study, Bowtie analysis, fault tree analysis and ALOHA (Areal Locations of Hazardous Atmospheres) simulation. The results were to identify causes, consequences and safeguards of hazards related to over and under pressure in an LNG storage tank. Moreover, a bowtie analysis was established for LNG loss of containment (LOC) from flammable liquids storage tanks. In addition, a fault tree analysis was presented to identify the causes of tank failure considering pressure hazards. Finally, the consequences of LNG released from the storage tank were simulated using the ALOHA software.
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