Nagano Conv. of JPI (52nd Petroleum-Petrochemical Symposium of JPI)

Presentation information

Refining equipment

[1D08-1D13] Refining equipment (3)

Thu. Oct 27, 2022 1:00 PM - 2:30 PM Room-D (12D Conf. room)

Chair:Toshiaki Mashiko(ENEOS Corp.)

1:45 PM - 2:00 PM

[1D11] A case study; Localized external corrosion atmospheric tank bottom plate and application of inspection methods

○Mitsuru Nakamura1, Hiroki Tsuruoka1 (1. Idemitsu Kosan Co.,Ltd. Chiba Complex Inspection & Reliability Section)

Keywords:tank, bottom plate, localized corrosion

After a failure at the bottom of an atmospheric tank during its operation, an internal inspection detected a localized metal loss in the center of the bottom plate. This paper discusses the mechanisms of the localized corrosion and roll out inspections to other tanks.