WebSep 6, 2024 · The CSB found that HTHA was occurring in Tesoro's heat exchanger in the "safe" operating region, where API RP 941 did not predict HTHA to occur. ... High … WebNov 14, 2024 · High Temperature Hydrogen Attack is a damage mechanism that doesn't result from corrosion reactions, however it takes place in temperature above 260 °C (500 °F) and with hydrogen partial ...
Sponsored Video: Comparison between TFM and PCI on Small …
WebApr 10, 2024 · PCI is an ultrasonic imaging technique available on the OmniScan X3 64 flaw detector, which is a variant of the total focusing method (TFM) that processes the phase data of received signals instead of the amplitude. Heiko uses a weld sample with high-temperature hydrogen attack damage as an example and compares the PCI results … WebHigh temperature hydrogen attack (HTHA), also called hot hydrogen attack, is a problem which affects steels operating at elevated temperatures in hydrogen environments, in refinery, petrochemical and other chemical … how can you keep your nervous system healthy
CSB Investigation Finds 2010 Tesoro Refinery Fatal Explosion …
WebThe associated CSB recommendations to the API were to revise relevant standards to (in summary): prohibit the use of carbon steel in HTHA-susceptible service, require verification of actual operating conditions, revise the minimum requirements to prevent HTHA failures, and require inherently safer design. WebJul 29, 2014 · The CSB made strong recommendations in these areas to both the industry group which issues guidance on HTHA, the American Petroleum Institute, as well as to Tesoro. These findings – and similar ones in other refinery investigations have led the CSB to recommend sweeping changes to the regulatory system. WebApr 28, 2024 · Subsequent CSB recommendations included the requirement of inherently safer materials to the greatest extent feasible, verification of actual operating conditions to confirm that construction material selected prevents HTHA equipment failure, and the prohibition of the use of carbon steel in processes that operate above 400 degrees … how can you keep fit