Question for assistance: Can a floating roof tank for storing crude oil and a floating roof tank for storing naphtha be built within the same fire dike?
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As the title suggests, are external floating roof storage tanks for crude oil and internal floating roof storage tanks for naphtha allowed to be built within the same fire dike? Is it permissible to have external floating roof gasoline storage tanks and internal floating roof naphtha storage tanks in such a setup?
This can be discussed in the process section
The first type is generally not allowed; gasoline and naphtha fall into the same category, and it’s possible to consult a design institute for guidance
Crude oil (a boiling liquid) and naphtha (a non-boiling liquid) cannot be placed in the same group, while gasoline and naphtha can. In accordance with Article 6.2.5 of the \"Code for Fire Protection Design of Petrochemical Enterprises\" GB 50160-2008 (2018 edition): 6.2.5 Storage tanks shall be arranged in groups, and the following requirements shall be met: 1 Within the same tank group, storage tanks with the same or similar fire hazard categories should be placed together ； When the volume of a single tank is less than or equal to 1000 m3, storage tanks with different fire hazard categories can also be arranged in the same group ； 2 Storage tanks for boiling liquids should not be arranged in the same group as storage tanks for non-boiling liquids ； 3 The pressure storage tanks for flammable liquids can be arranged in the same group as the full-pressure storage tanks for liquefied hydrocarbons ； 4 Low-pressure storage tanks for flammable liquids can be arranged in the same group as atmospheric-pressure storage tanks. 5 Light and heavy crude oil storage tanks should be arranged separately in the same group
Crude oil (a boiling liquid) and naphtha (a non-boiling liquid) cannot be placed in the same group, while gasoline and naphtha can. In accordance with Article 6.2.5 of the \"Code for Fire Protection Design of Petrochemical Enterprises\" GB 50160-2008 (2018 edition): 6.2.5 Storage tanks shall be arranged in groups, and the following requirements shall be met: 1 Within the same tank group, storage tanks with the same or similar fire hazard categories should be placed together ； When the volume of a single tank is less than or equal to 1000 m3, storage tanks with different fire hazard categories can also be arranged in the same group ； 2 Storage tanks for boiling liquids should not be arranged in the same group as storage tanks for non-boiling liquids ； 3 The pressure storage tanks for flammable liquids can be arranged in the same group as the full-pressure storage tanks for liquefied hydrocarbons ； 4 Low-pressure storage tanks for flammable liquids can be arranged in the same group as atmospheric-pressure storage tanks. 5 Light and heavy crude oil storage tanks should be arranged separately in the same group
It cannot be placed in one cofferdam; building fire safety codes specify clearly that boiling and non-boiling substances must not be in the same cofferdam
Of course not. Additionally, gasoline can only be stored in floating roof tanks; your second assumption is completely unfounded.
Not allowed; boiling and non-boiling processes cannot be carried out in the same cofferdam.
This post was last edited by longziyun on 2020-7-22 20:29. What does that mean? Did I say something wrong again? :L
I’ve seen gasoline tanks with domes, but they do suffer much higher wear and tear. External floating roof tanks are commonly used in large crude oil tanks, while internal floating roof tanks are commonly used in light oil tanks (gasoline, diesel, naphtha, etc.)