Importance

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Abstract

When odorant injection systems are inactive, they may accumulate unwanted vapors in the pump mechanism and associated tubing. In order to restart the odorant injection system, it is best to purge the unwanted vapors from the odorant pumps. The present pump purge system facilitates purging of unwanted vapors from odorant injection systems in an environmentally friendly fashion. The pump purge system purifies these vapors before they are vented to atmosphere. In addition, the pump purge system accumulates liquid odorant which is a byproduct of the purging process and stores it in a tank to reduce the likelihood of improper disposal. As an option, the pump purge system may also include a liquid odorant recapture system. The liquid odorant recapture system uses high pressure gas to return accumulated liquid odorant to the odorant injection system to be reused. This liquid odorant recovery system ensures environmentally responsible behavior.

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First Claim