Storage floating roof

Figure 10.29 Fixed roof and floating roof storage tanks...

Storage of Flammable Materials. The preferred storage for flammable Hquids or gases is in properly designed tanks. Floating roof tanks frequently are used in the petroleum industry for flammable cmdes and products (see Tanks and pressure vessels). The vents on cone roof tanks should either be equipped with flame arrestors or the vapor space above the contents should be inerted with a nonflammable gas or vapor, unless the flash point is weU above the maximum ambient temperature, the contents are not heated above the flash point, and the tank is not exposed to other tanks containing flammable Hquids. 

API Publ 2026, Safe Access/Egress Involving Floating Roofs of Storage Tanks in Petroleum Service, 2nd ed., April 1998. 

TANKS This program estimates volatile organic compound (VOC) and hazardous air pollutant (HAP) emissions from fixed- and floating-roof storage tanks. TANKS is based on the emission estimation procedures from... 

At the beginning of the current reporting year, the facility installed a floating roof in its storage tank. This change reduced fugitive emissions from the tank 90 percent, from... 

A facility stores NFPA (National Fire Protection Association) Class 1B liquid in a diked atmospheric storage tank equipped with an external floating roof. 

In the storage of flammable liquids, if the composition of the vapour-air mixture above the liquid surface falls within the flammability limits, a floating roof tank would be used or the tank blanketed with inert gas. Check if the vapour composition for liquids listed below will fall within their flammability range, at atmospheric pressure and 25°C. 

On a rare occasion a tensioned string tied to pressure switch has been provided as detection over the vapor seal area of a floating roof crude storage tank. Although this method may be considered primitive and cheap, it is effective and beneficial versus the option of no detection). 

Petrolenm Liqnid Storage in External Floating Roof Tanks Petrolenm Liqnid Storage in Fixed Roof Tanks Petrolenm Refinery Eqnipment Leaks... 

The latest research on storage tank fire protection is the LASTFIRE Project conducted in the UK. This joint industry project reviewed the fire-risk of large, open top floating roof storage tanks. For additional information on this project, refer to http //www.resprotint.co.uk/. 

Covered floating roof tank—an atmospheric storage tank with a fixed roof and steel internal floating roof of the single-deck pontoon or double-deck design. 

Floating Roof A special type of storage tank roof which floats on the surface of the oil in storage. This helps to eliminate tank venting and reduces evaporative loss. 

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