Stationary Scrubbers
In the past, emissions from storage tanks have been difficult to handle. One of the primary problems is due to the fact that oxygen has contaminated the gas that is released from stored liquids. This usually occurs during the shipping phase of the operation, when the storage tank goes on vacuum and air is introduced to replace the shipped liquids.
Venting these gases to a flare becomes hazardous, even when a gas blanket and flame arrestor are employed. The threat of a flashback is very possible in the event of failure of either one of these components. AMGAS designed ScrubberMax Models 7T, 8T and 9T to address these concerns. The noxious vapors are passed through the scrubber using a patented chemical/ mechanical process and released to the atmosphere. The H2S and mercaptons are absorbed into the chemical solution and, in time, are replaced and disposed of. As the vapors are not vented to flare, the possibility of a flashback is eliminated.
Tank trucks may also be tied into this system. As the liquids are drawn from the tank into the truck, gases from the truck replace the liquids pumped from the tank, leaving very little gas that needs to be treated. This has proven to be an extremely effective, safe and economical method of treating noxious odors.