OREANDA-NEWS. Ethylene unit 1592 at Chevron Phillips Chemical's Cedar Bayou, Texas, plant tripped on 2 April because of a loss of boiler feedwater to the furnace area.

Operators restarted the furnaces within minutes, according to a Texas Commission on Environmental Quality report.

Benzene, butane, ethylene, propane, propylene, toluene and xylenes were routed to the flare.