Hilliard Emission Controls, Inc. 3100 Edloe Street Suite 350 Houston, TX 77027 888-621-3132

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PURGIT has vapor control equipment to degas big tanks. Using our proprietary system, we  remove concentrated vapors and recover (condense) them to liquid, putting the non-condensed vapor back in the tank. Our system is closed loop. The PURGIT condensers can handle up to 15 pounds of pressure without a release because we do not have a vent stack for tank vapors. Our condensers can be chilled to -175^o F (-113 C^o).

The capacity of this tank is 100,050 bbl. In about 88 hours we recovered over 5,000 gallons of isoprene and the tank was never opened to the outside air (zero air intrusion). The tank vapor space was saturated with cargo vapors and had a nitrogen pad when we started. When we finished the tank was still inert - that is no air was added it still had the nitrogen pad. Only enough nitrogen gas was added (at no extra cost since we make nitrogen gas as a by-product) to keep the tank in a positive pressure.

Our mobile equipment is capable of moving to any shore tank or marine vessel. In the first 19 months of operation with the new condenser we recovered over 91 tons (about 82,500 kg) of VOC liquid. Almost every other emission control company that does this work use combustors to burn the cargo vapors. You will never see them keeping track of the tons they burn, because those tons are released as greenhouse gases. Some of the combustor outfits will claim they can get 99.99% efficiency, but even if they can, the material is burned sending emissions into the air.

Contact PURGIT at: 713-621-3132 or hank.hilliard@purgit.com
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