Ammonia Synthesis Loop Water Exposure: Identification and Re-reduction of AmoMax®-10

摘要

After the 2015 outage at the Koch Fertilizer Dodge City Ammonia Plant, the site found their ammonia synthesis converters had been exposed to water and water vapor. Koch Fertilizer and Clariant Technical Services worked together to avoid significant loss of conversion in the ammonia synthesis converters and implement procedures to attempt to salvage the charge of AmoMax®-10 ammonia synthesis catalyst This paper will discuss the troubleshooting that was completed, safety precautions taken to ensure the ammonia synthesis converters were started back up without incident, actions taken to re-reduce the catalyst, and lessons learned.