API MPMS Chapter 19.2

Evaporative Loss from Floating-roof Tanks, Fourth Edition

American Petroleum Institute, 08/01/2020

Publisher: API

File Format: PDF

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Description

Published:01/08/2020

Pages:110

File Size:1 file , 4.9 MB

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This standard contains methodologies for estimating the total evaporative losses of hydrocarbons from external floating-roof tanks (EFRTs), freely vented internal floating-roof tanks (IFRTs), and domed external floating-roof tanks (domed EFRTs).

The methodologies provide loss estimates for general equipment types based on laboratory, test-tank, and field-tank data.

Types of floating roofs, rim-seal systems, and deck fittings are described for information only.

The equations estimate average annual losses from floating-roof tanks for various types of tank construction, floating-roof construction, rimseal systems, and deck fittings, as well as for various liquid stocks, stock vapor pressures, tank sizes, and wind speeds (EFRTs).