OIL & GAS
Successful tank cleaning requires a careful combination of efforts including depressurizing, reducing hydrocarbon concentrations, and minimizing the impact of waste and emissions on the environment.
ITS Environmental’s patented tank cleaning and oil recovery solutions provides optimal environmental, health and safety performance, maximizes recoverable oil, and minimizes waste in a safe and cost efficient way.
Tank cleaning and sludge reduction with GTS-OR
Environmental constraints vary from state to state. In California, the South Coast Air Quality Management District (SCAQMD) rule 1149 applies to tanks storing any organic liquid with an RVP of 0.5 psia or greater that is being emptied for cleaning and that contain a vapor space.
Prior to opening such a tank, degassing is required until the VOC concentration inside the tank is <5,000 ppmv for at least one hour after degassing stops.
The VOC reading (performed with an OVA meter calibrated to methane) is taken within one foot above the sludge material on the bottom of the tank and at least two feet away from the inside tank wall. When the VOC concentration is low enough, degassing can cease and the tank can be opened for cleaning or remain empty until introduction of a new product.
SCAQMD Rule 1149 degassing for regulated pipelines
Degassing with GTS-DEGASSER