Abstract
Carbon dioxide pipeline is an essential carrier in carbon capture, utilization, and storage (CCUS). Statistically revealing the accident rate and risk of carbon dioxide pipelines is conducive to integrity management. Based on 112 accident records collected from Pipeline & Hazardous Materials Safety Administration, this work analyzes the frequency, rate, and risk of accidents. In addition, the impact of relevant factors on risk is further discussed. Some primary conclusions are as follows: (1) For carbon dioxide pipelines, the leak is the leading form of accident. Most carbon emissions are generated in the form of leakage, but economic losses are mainly generated in other forms. (2) The pipelines that have been in service for 0–10 years have the highest frequency of accidents and the highest proportion of carbon emissions, but the pipelines that have been in service for 11–20 years have caused the most economic losses. (3) Among the accident causes, the number of accidents caused by equipment failure is the highest, while the economic loss caused by natural force damage is the highest, and the carbon emission caused by material failure is the highest.
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