What was the failure mode of the heat exchanger in the Tesoro Anacortes incident?

What was the failure mode of the heat exchanger in the Tesoro Anacortes incident?

CSB’s investigation into the catastrophic failure of a forty-year-old heat exchanger at the Anacortes Treasury Refinery in Washington determined that the fatal explosion and fire were caused by a damage mechanism known as high temperature hydrogen attack, or HTHA, which cracked and severely weakened the carbon steel …

Which of the following contributed to the Tesoro refinery incident investigated by CSB?

Seattle, Washington, January 29, 2014—The April 2010 fatal explosion and fire at the Tesoro refinery in Anacortes, Washington was caused by damage to the heat exchanger, a mechanism known as “high temperature hydrogen attack” or HTHA, which severely cracked and weakened carbon steel tubing leading to a rupture.

What caused the explosion at the refinery?

The explosions occurred when a distillation tower flooded with hydrocarbons and was overpressurized, causing a geyser-like release from the vent stack.

What is the plant in Anacortes?

Shell Oil Products US, a subsidiary of Royal Dutch Shell PLC, operates the Puget Sound Refinery located on March Point outside of Anacortes, WA. The plant is the largest taxpayer in Skagit County and one of the county’s largest employers.

How old is the Philadelphia refinery?

Known as Philadelphia Energy Solutions today, it began refining oil on the banks of the Schuylkill River in 1870. Over the years, it has expanded to include 3000 storage tanks and enough piping to reach Florida — most of it wrapped in asbestos.

Who bought Shell Anacortes?

HollyFrontier Corp.
HollyFrontier Corp. is the new owner of the Shell Puget Sound Refinery in Anacortes. Shell Oil Products U.S. recently completed the previously announced sale of the refinery to Dallas-based HollyFrontier, according to a news release from HollyFrontier.

Who bought Shell Puget?

HollyFrontier Corporation
1, 2021 /PRNewswire/ — Equilon Enterprises LLC d/b/a Shell Oil Products U.S. (Shell), a subsidiary of Royal Dutch Shell plc, has completed the sale of its Puget Sound Refinery near Anacortes, Washington to a subsidiary of HollyFrontier Corporation, an independent refiner headquartered in Texas (HollyFrontier), for …

What are the effect of explosion?

Explosion effects generally include those of overpressure, thermal effects, energized projectiles (fragments, debris, and missiles), ground shock, and cratering.

What are common causes of chemical plant explosions?

The causes of chemical plant explosions are diverse – natural disasters (as in the 2011 Fukushima earthquake/tsunami disaster), improper or infrequent maintenance, improper storage or transportation of hazardous chemicals, insufficient training of personnel, and human error in the operation of equipment are all common …

Who bought the Philadelphia refinery?

Hilco Redevelopment Partners
When Hilco Redevelopment Partners bought the South Philadelphia refinery complex for $225.5 million out of the most recent Philadelphia Energy Solutions bankruptcy, the Chicago real estate development firm promised it would repurpose the old industrial site into a distribution hub.

Who owns Philadelphia Energy?

The site, founded by the Atlantic Refining Company, later known as ARCO, has cycled through several owners. Sunoco, which owned the refinery for about two decades, sold its majority stake in 2012 to Carlyle Group Inc, which later formed PES.

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