Methanol Tank Overfill - EPSC Learning sheet March 2021

Event related to Process Safety Fundamental: Manage Overrides of Safety Interlocks!_x000d_ During a methanol transfer to a tank the high level switch tripped the pump. The level transmitter indicated that the tank was only half full. The interlock was bypassed and the pump was restarted, resulting in overfilling the tank and a large methanol spill.

Duiding score:

Duiding:

One-pager describing the event and learning aspects

Doelgroep(en):

• HSE managers
• Maintenance managers
• Operatie managers

Risicothema:

• Process Safety - Asset Integrity Management - Algemeen