API PUBL 4683-1998

$25.35

Correlation Equations to Predict Reid Vapor Pressure and Properties of Gaseous Emissions for Exploration and Production Facilities

Published By	Publication Date	Number of Pages
API	1998	78

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Description

Operators of petroleum storage tanks often need to prepare site-specific emission inventories to meet environmental regulations. Emission inventories can be quite complicated to prepare, and often necessitate laboratory analyses of oil and gas samples in order to quantify key variables such as Reid Vapor Pressure (RVP), gas molecular weights, hazardous air pollutant species (HAPs) distributions, and specific gravity of the separator gas. This report establishes simple techniques to estimate these variables in the absence of laboratory data. Analyses were performed of emissions measurements, oil and gas sampling results, and emissions modeling results for more than 100 crude oil exploration and production (E&P) storage tanks. In conclusion, correlation equations or statistical averages are recommended in order to estimate RVP, vented flash gas molecular weight, vented working and standing gas molecular weight, hydrocarbon speciation (including HAPs), and separator gas specific gravity.

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