How to calculate emissions from crude oil tank leak

[OilBoiler]

Hi everyone,

I need to calculate emission of contaminants or hazardous materials resulting from a crude oil tank leak. I've been given the following information:

1. Components that are suspected to be present in reportable quantities during the incident,
2. Volume of oil that leaked
3. Weight percent of the components in the liquid and vapor fractions (not too exact, but some assumptions)

It seems that the emissions could be easily calculated given this information, but I was told that there is some kind of protocol to follow, since this is a reportable incident to the EPA. Does anybody know what is the procedure or any suggestions on how to calculate these emissions and in what units to report them?

Thanks,

 

[owg]

The Handbook of Chemical Hazard Analysis Procedures, published by FEMA, DOT, and EPA, has a simple method for estimating Emission Rates from Liquid Pools. The vaporization rate is a function of wind speed, vapor pressure of the liquid, and the pool area.

HAZOP at

http://www.curryhydrocarbons.ca

 

[rbcoulter]

Try the software ALOHA.

 

[mbeychok]

OilBoiler:

If it you are asking how to calculate the vaporization rate of a pool of liquid, then :

(1) Go to www.air-dispersion.com/source.html and select whether you want metric units or the customary USA units.

(2) Then select "Vaporization From Non-Boiling Liquid Pool"

(3) You will than find three different correlations, one f which is the method in the handbook referred to by OWG in his response to your posting.

Milton Beychok
(Visit me at www.air-dispersion.com)
.