Answers to Hazardousness of high oxygen concentrations

Answer a) is correct.

Answer c) might blow up your budget.

Answer b) is very dangerous: Residual lube oil from the air compressor is deposited as a thin film inside the pipe. After the pipe is put back into service, the oil-oxygen mixture can ignite and rupture the pipe. The cause of ignition could be, e.g., compression at a closed valve.

For more information on electrostatic discharges view the previous Chemical Process Safety – Test Your Knowledge

---

• The information was taken from CCPS’s Process Safety Beacon 1 2017
• Register for free for the CCPS’s monthly Process Safety Beacon