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Risk analysis to be implemented for refinery ESPs

On February 18, 2015, an explosion occurred in the ExxonMobil Torrance, California refinery’s Electrostatic Precipitator (ESP); a pollution control device in the fluid catalytic cracking (FCC) unit that removes catalyst particles using charged plates that produce sparks during normal operation. The incident occurred when ExxonMobil was attempting to isolate equipment for maintenance while the unit was in an idle mode of operation. Preparations for the maintenance activity caused a pressure deviation that allowed hydrocarbons to backflow through the process and ignite in the ESP. The U.S. Chemical Safety and Hazard Investigation Board (CSB) identified several process safety design weaknesses in the Torrance refinery FCC unit at the time of the incident. As a result, the CSB made four recommendations to Torrance Refining Company LLC. This recommendation is specific to requiring a siting risk analysis be performed of all ESPs and the implementation of appropriate safeguards.

Revision Date:  7/2/2019

Tags:  324110 - Petroleum Refineries 石油精炼, ExxonMobil, Electrostatic Precipitator, Analysis, USA

Beneficial uses of fly ash will be continuously analyzed

Burns & McDonnell says beneficial use of CCR materials can provide economic and environmental benefits

Revision Date:  6/26/2019

Tags:  221112 - Fossil Fuel 化石燃料, Burns & McDonnell, Flyash, Analysis