Sep 29, 2013· The world's largest flexicoker, with a processing capacity of about 64,000bpd, is located at Amuay refinery of the Paraguana complex. The Amuay refinery also has a catalytic cracking unit. The ignition of a leaking gas at Paraguana's Amuay refinery in August 2012 caused an explosion that broke out fire in three tanks at Block 23.