Fire in a basic chemicals production site

This incident occurred in a unit processing vegetable oils and fats.
an explosion occurred in a hydrogenation facility, specifically where hydrogen is processed with a very high-pressure (400 bar). Accidental mixing with oxygen caused an explosion which further ignited oil, fat, and alcohol. The volatile mixture produced the acrid black smoke seen and felt in the surroundings.
A fire-brigade from the involved town was at the scene in a few minutes and was assisted by the Fire Department of a bigger city. Approximately one hour later the fire was extinguished.
An employee of a contractor was injured when he fell from a scaffold, and two truck drivers were examined as outpatients.

The results of the internal investigation is not publicly available. Both the district government and the company agreed that it was plausible to identify in a material failure the immediate cause of the incident.
Therefore, only the INITIATING cause is known, and not even in details.

pipe

An employee of a contractor was injured when he fell from a scaffold, and two truck drivers were examined as outpatients.
According to the company, no poisonous substances leaked, and the strong rubber smell was caused by burning cable insulation.