On Sunday, what will be the tallest and heaviest piece of equipment that’s part of the mighty $6 billion Shell ethane cracker in Monaca (Beaver County), PA was hoisted into place. It’s called a “quench tower” and it looks like a humongous silo. It’s 300-feet high, which translates into about 30 stories. One of the world’s largest cranes had to be reserved a year ago in order to do the lifting. It took all day, but by 3:30 pm, the quench tower was standing upright–yet another monument to the power of the Marcellus Shale.