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May 30, 2012 at 4:20 pm #4624
we filter 100% of our rich amine to protect the lean rich exchangers and regenerator and 10% of the lean stream to both the charcoal and cartridge filters. we neutralize the heat stable salts and reclaim the amine when the ash hits about 7% max. the system is very stable and forgiving. by the way, it is mdea and the predominant gas is coker off gas.