Complex sentence: In July 2007 Eastman announced plans to build a $1.6 billion gasification plant in Beaumont, Texas, using petroleum coke from Gulf Coast petroleum refineries as its primary feedstock, producing hydrogen, methanol and ammonia.
Split into simpler sentences: In July 2007 Eastman announced plans to build a $1.6 billion gasification plant in Beaumont, Texas. The plant was to use petroleum coke obtained from Gulf Coast petroleum refineries as its primary feedstock, producing hydrogen, methanol and ammonia.