Licence conditions for pollution studies and reduction program

Licence conditions for pollution studies and reduction programs

Summary

Licence number:

828

Title:

Pollution Reduction Study (PRS) 52 - Ammonia Reformer NOx study to set a reduced NOx limit

Start date:

31 Jul 2023

Licence Condition
Discharges of nitrogen oxides (NOx) can result in adverse air quality. The Ammonia Plant Reformer stack (Point 20) is a major point source emission of NOx from the premises. Pollution Reduction Program 49 involved trials of selective non-catalytic reduction technology to reduce NOx emissions from the Ammonia Plant Reformer. The trials showed that 10-13% NOx emissions reductions can be achieved at the Ammonia Plant Reformer through ammonia injection. This purpose of this Pollution Reduction Study is to collect data that will be used to set a reduced concentration limit for NOx emissions from the Ammonia Plant Reformer.
The licensee must undertake a pollution study of emissions from the Ammonia Plant Reformer stack (monitoring point 20) thorough collection of NOx emissions data as set out below: The licensee must collect at least two additional rounds of monitoring data for NOx for Point 20, as detailed under condition M2.2 of this Licence; and The licensee must ensure that NOx reduction technology, via ammonia injection, is operating at optimal injection rates while monitoring is undertaken.
Within two months of completing the monitoring, and by no later than 1 June 2025, the licensee must provide a report to the EPA at info@epa.nsw.gov.au that includes: the results of no less than three rounds of monitoring data with ammonia injection, presenting concentrations of nitrogen oxides emitted; the results of no less than three rounds of historic monitoring data without ammonia injection, presenting concentrations of nitrogen oxides emitted; and a proposed concentration limit for nitrogen oxides from Point 20, with justification.