The central element will be a naphtha cracker, a stainless steelvessel that under intense heat and pressure breaks long hydrocarbons into plastics precursors.
As much as 150, 000 gallons of ultra-low sulfur diesel and about 12, 000 gallons of other petroleum products are on board the Kulluk, a double-hulled steelvessel with a helicopter landing pad and tower in the middle designed for drilling in Arctic waters.
The drywell is a large steel pressure vessel that looks like a giant upside-down pear and holds the reactor and primary pumps, and the wetwell is a large toroidal vessel that looks like a donut.
The bright yellow dome of the steel containment vessel at Unit 4, Fukushima Daiishi nuclear power plant (FDI) is clearly visible amid the pulverized remains of the building in a new video released by the Tokyo Electric Power Company.
Made of hardened steel that is between four and eight inches thick, the integrity of the containment vessel is critical in preventing enormous quantities of radioactive material from escaping into the environment.