Chevron Chemical , Oronite Additives Division
Chevron makes OGA (Oronite Gasoline Additives) for gasoline marketers. This manufacturing process produces a waste stream containing free amine, a HCl-amine mix, and water totaling 8,500,000 per year which was deep-well disposed. Chevron put together a team to recover amine from the waste. The recycle method was the obvious waste reduction choice with the greatest economic and pollution prevention impact.The recovery process developed first neutralizes the waste mix with caustic, and then heated to boil off the amine and most of the water (the remaining slurry consisting mainly of NaCl goes for disposal). A distillation section then separates amines from the water. The amines are returned to the process and the water goes to treatment. New unit recovers 99% of the amine previously disposed. The remaining 1%(85,000 lbs/yr) is under close scrutiny for more recovery.
Chevron currently recovers 8,400,000 lbs/yr of amines that were previously disposed to deep wells.
Details of Reductions
Additional Information :
The project cost $4,500,000 and realized $9,300,000/year in raw material savings.