Discussion on the filling medium for liquefied gas tankers
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This post was last edited by mada on 2017-7-18 08:12. Many liquefied gas tankers are labeled as carrying \"liquefied petroleum gas (propane)\\", but when filling them, they actually contain substances other than those indicated on the label, such as butene-1. Please discuss whether this is feasible – first, from a technical perspective, and second, from a regulatory standpoint How was it considered during the design? Is there a list of media that are allowed to be filled? Should the filling medium be strictly restricted? Are there any corresponding standards or regulations?
Let me share my humble opinion. Propane has a higher pressure; since tankers are designed to meet the requirements of propane, there is no problem at all in filling them with C4 components, which have lower pressures.
Have you ever worked on the design of tank trucks? What was the intention behind such labeling? When using different media, is corrosion prevention taken into account? I suggest it would be best to have a list of media that are allowed to be filled, or a list of those that are not allowed, to facilitate operations at the grassroots level.
It is technically feasible; be sure to check whether gas displacement is required before filling with different materials； It’s not feasible from a regulatory standpoint; Shandong Weifang and Jiangsu Xinyi – you know what I mean.
Technical problems are easy to solve; the difficulty lies in avoiding legal responsibilities.
Volume: 57.2 cubic meters; Total mass: 40,000 KG; Braked mass: 11,972 KG; Number of steel spring leaves: /-4/4/4/,-/0/0/0/; External dimensions: 13,000*2,500*3,950; Filling coefficient: 0.49 T/cubic meter; Tank mass: 8,030 KG; Design pressure: 1.25 Mpa; Cylinder thickness: 8 MM; Main material: Q420R; Tank dimensions: 12,722*2,430*8. This is a relatively suitable model that can help avoid legal responsibilities. To avoid any suspicion of advertising, the brand and model names have been removed; those interested can look up relevant information on their own.
It is illegal; those caught will be punished