Chevron Phillips Chemical To Build World-Scale 1-Hexene Unit In Old Ocean, Texas THE WOODLANDS, TEXAS--(BUSINESS WIRE)-- Chevron Phillips Chemical announced today plans to expand its alpha olefins business with a second world-scale unit to produce on-purpose 1-hexene. Expected capacity for the new unit is 266 KTA with targeted startup in 2023 and its location will be Old Ocean, Texas, near the company’s Sweeny facility. At its peak, the project anticipates supporting more than 600 construction jobs and 50-plus full-time positions. 1-hexene is a critical component in the production of high-performance polyethylene (PE). This plastic resin is commonly used in the production of film and rigid containers for a variety of everyday products, including packaging for food, detergent and pharmaceuticals, among many others.