Carbon adsorption system protects LPG storage sphere

Carol A. Gothenquist Calgon Carbon Corp. Richmond, Calif. Karen M. Rooker Chevron U.S.A. Products Co. Richmond, Calif. Traditionally, refiners have used carbon systems to treat amine solutions to prevent problems such as foaming and chemical or thermal degradation. Foaming and contaminants lead to increased amine makeup and high operating costs. With increased focus on safety, however, refineries are carbon treating their amine solutions for a different reason-incident prevention. Chevron U.S.A. Products Co. installed a carbon adsorption system to protect an LPG storage sphere at its refinery in Richmond, Calif. Vessel damage can result when amine contamination leads to emul...

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