U. S. BRIEFS
PHILLIPS 66 CO. started up a new olefins unit at its Sweeny, Tex., refinery that can produce 1.5 billion lb/year of ethylene, increasing Sweeny Olefins LP's capacity to 4 billion lb/year or about 10% of total U.S. capacity. About 80% of the unit's ethylene capacity is committed under long term contracts. The unit also can produce 600 million lb/year of propylene. Phillips 66 holds a 50% interest in Sweeny Olefins LP.