Digest
What if your agitator fails? — Process Safety Beacon, August 2018
What if your agitator fails? — Process Safety Beacon, August 2018
- CCPS
- Digest
- Process Safety Beacon August 2018
- Machinery and EquipmentProcess Safety
- Environmental protectionLoss of containmentPressure systemsProcess safety
- Pressure vesselRotating machinery
- Downstream and process industries
Summary
This bulletin examines a German batch-reactor incident in which restarting agitation mixed accumulated reactants, rapidly raising temperature and releasing contents through a relief valve. It explains mixing and heat-transfer hazards, including in non-reacting vessels, and recommends obtaining technical assistance and reviewing operating history before restarting an agitator after loss of agitation.
Classifications: Environmental protection; environmental safety; pollution prevention.
Classifications: Loss of containment; containment loss.
Classifications: Pressure systems; stored pressure; pressurised systems; pressurized systems.
Classifications: Process safety; major accident hazards.
Classifications: Pressure vessel; pressure vessels.
Classifications: Rotating machinery; rotating equipment.
Classifications: Downstream and process industries; refining; petrochemicals.
Summary
One-page Beacon on the process safety consequences of agitator failure in reactors and vessels.
Process Safety Beacon August 2018. Themes: machinery and equipment, process safety.