Chemical Safety Board preliminary report links refinery blasts in Wisconsin and California to cracking unit failures

A preliminary report released this week by the Chemical Safety Board blames recent refinery explosions in Superior, WI and Torrance, CA on the inadvertent mixing of hydrocarbons with air inside the Fluid Catalytic Cracking Unit that found an ignition source, resulting in an explosion.   On April 26, 2018, an explosion (Figure 1) and subsequent fire (Figure 2) occurred at the Superior Refinery Company LLC refinery in Superior, Wisconsin (“Husky Superior Refinery”).1 The incident occurred in the refinery’s Fluid Catalytic Cracking Unit (FCCU). As a result of the explosion, thirty-six people sought medical attention, including eleven refinery and contract workers who suffered OSHA recordable injuries. In addition, a portion of Superior,2 Wisconsin was evacuated. Evidence collected to date suggests similarities with a previous investigation of the February 18, 2015 explosion at a refinery in Torrance, CA.   On Wednesday, February 18, 2015, an explosion occurred in the ExxonMobil Torrance, California refinery’s...
Continue reading
1396 Hits

CSB issues final report on Feb. 2015 refinery explosion in Torrance, CA

The U.S. Chemical Safety Board (CSB) released its final report into the February 18, 2015, explosion at the ExxonMobil refinery in Torrance, California. The blast caused serious property damage to the refinery and scattered catalyst dust up to a mile away from the facility into the nearby community. The incident caused the refinery to be run at limited capacity for over a year, raising gas prices in California and costing drivers in the state an estimated $2.4 billion.   The explosion occurred in the refinery’s fluid catalytic cracking (FCC) unit, where a variety of products, mainly gasoline, are produced. A reaction between hydrocarbons and catalyst takes place in what is known as the “hydrocarbon side” of the FCC unit. The remainder of the FCC unit is comprised of a portion of the reaction process and a series of pollution control equipment that uses air and is known as the “air side”...
Continue reading
557 Hits

JOIN OUR MAILING LIST FOR NEWS, ANNOUNCEMENTS, PRODUCTS, & MORE

Go to top