Capitalizing on abundant supplies of cheap natural gas liquids unlocked in the U.S. shale boom, LyondellBasell plans to build a chemical plant on the Texas Gulf Coast, the company announced Monday. With the capacity to produce 900 million pounds of propylene oxide and 2 billion pounds of tertiary butyl alcohol each year, the plant will be the largest of its kind for the Houston-based plastics, chemicals and refining giant, spokesman George Smalley said. The company operates several such plants in the Houston area. LyondellBasell did not disclose how much the plant will cost, but projects of similar size cost more...