Peter Bruun Jensen and Sudip De Sarkar

Increase safety by using an automated protection system to avoid over-firing of primary reformer

In early 2015, when Profertil was performing a hot restart of their ammonia plant, an uncontrolled and rapid increase in flue gas temperature was noticed in the primary reformer. After natural gas feed was introduced to the primary reformer, it was observed that a rupture of several catalyst tubes had occurred and the plant was tripped immediately.
Profertil requested Haldor Topsoe to take the lead technical advisor role in a thorough root cause analysis, performed to identify the reason(s) for the tube rupture incident.

Automated protection system