A hydrogenation experiment was being performed under 60 atm hydrogen, inside a high-pressure reactor cell. The experiment was conducted inside a fume hood and left overnight. The hood caught fire during the night, resulting in fire damage to the fixture, hood, and exhaust duct, as well as water damage to much of the building. Based on the local fire department investigation, the fire started from faulty electrical wiring that was used to provide power for reactor cell heating. The electrical fire ignited solvent that was in a dispensing bottle inside the hood, which subsequently overheated the reactor cell, rupturing the seals. The rupture released hydrogen from the cell and attached supply tank, further fueling the fire. Nobody was injured in the incident, and damages were limited. It view more

A person working in a hydrogen lab unknowingly closed the wrong hydrogen valve and proceeded to loosen a fitting in one of the hydrogen gas lines. The pressure in the 1/4"-diameter hydrogen line was approximately 110 psig. Hydrogen escaped from the loosened fitting and the pressure release resulted in the tubing completely detaching and falling to the floor. The person noted seeing a white stream around the hydrogen jet leak. The person noted a color change and noise change as the leak ignited (this happened in a matter seconds and he did not have a chance to react). The person left the lab and pushed the emergency stop button. Someone else pulled the fire alarm. Both of these actions were designed to close the main hydrogen solenoid (shutoff) valve. The local emergency response view more