What safety measures are required for storage tanks containing the high-risk substance benzene?
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What safety measures are required for storage tanks containing the high-risk substance benzene? A benzene storage tank with a capacity of 10 cubic meters is required; benzene is now considered a high-hazard material, so should it be equipped with an internal floating roof? What safety measures need to be taken? Should the pressure vessel be pressed?
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Article 6.2.2 of the \"Code for Fire Protection Design of Petrochemical Enterprises (2018 Edition)\” (GB 50160-2008): For storing Class A and B liquids, floating roof tanks or internal floating roof tanks with metal float chambers should be used. For materials with special requirements, or for tanks with a volume of 200 m3 or less, other types of tanks can be employed provided that appropriate safety measures are taken. The floating roof should be selected based on the properties of the flammable liquid and the strength of the materials used, and it must comply with the following requirements: 1 When internal floating roof storage tanks with a single tank volume of 5000 m3 or less use floating roofs made of fusible materials, safety measures such as nitrogen protection must be implemented ； Article 6.2.19: Fixed-roof tanks for Class A, B, and Class C liquids shall be equipped with flame arresters and vent valves ； Storage tanks for Class A B and Class C liquids that use nitrogen or other gases as a gas seal should also be equipped with emergency pressure relief devices. 2 For internal floating roof storage tanks with a single tank volume greater than 5000 m3, steel single-disc or double-disc floating roofs should be used ； 3 Floating roof tanks with a single tank volume of 50,000 m3 or more shall use a steel double-disc floating roof.
Article 6.2.2 of the \"Code for Fire Protection Design of Petrochemical Enterprises (2018 Edition)\” (GB 50160-2008): For storing Class A and B liquids, floating roof tanks or internal floating roof tanks with metal float chambers should be used. For materials with special requirements, or for tanks with a volume of 200 m3 or less, other types of tanks can be employed provided that appropriate safety measures are taken. The floating roof should be selected based on the properties of the flammable liquid and the strength of the materials used, and it must comply with the following requirements: 1 When internal floating roof storage tanks with a single tank volume of 5000 m3 or less use floating roofs made of fusible materials, safety measures such as nitrogen protection must be implemented ； 2 For internal floating roof storage tanks with a single tank volume greater than 5000 m3, steel single-disc or double-disc floating roofs should be used ； 3 Floating roof tanks with a single tank volume of 50,000 m3 or more shall use a steel double-disc floating roof. Article 6.2.19: Fixed-roof tanks for Class A, B, and Class C liquids shall be equipped with flame arresters and vent valves ； Storage tanks for Class A B and Class C liquids that use nitrogen or other gases as a gas seal should also be equipped with emergency pressure relief devices.
Article 6.2.2 of the \"Code for Fire Protection Design of Petrochemical Enterprises (2018 Edition)\” (GB 50160-2008): For storing Class A and B liquids, floating roof tanks or internal floating roof tanks with metal float chambers should be used. For materials with special requirements, or for tanks with a volume of 200 m3 or less, other types of tanks can be employed provided that appropriate safety measures are taken. The floating roof should be selected based on the properties of the flammable liquid and the strength of the materials used, and it must comply with the following requirements: 1 When internal floating roof storage tanks with a single tank volume of 5000 m3 or less use floating roofs made of fusible materials, safety measures such as nitrogen protection must be implemented ； 2 For internal floating roof storage tanks with a single tank volume greater than 5000 m3, steel single-disc or double-disc floating roofs should be used ； 3 Floating roof tanks with a single tank volume of 50,000 m3 or more shall use a steel double-disc floating roof. Article 6.2.19: Fixed-roof tanks for Class A, B, and Class C liquids shall be equipped with flame arresters and vent valves ； Storage tanks for Class A B and Class C liquids that use nitrogen or other gases as a gas seal should also be equipped with emergency pressure relief devices.