Keywords: emission reduction, emissions from fertiliser plants, emissions from ammonia plants, emissions from nitric acid plants, emissions from fertiliser granulation plants, DeNOx, N2O abatement, VOC emission reduction, NOx reduction from reformer flue gas, BACT values for fertiliser production.
This paper describes actual experience with limitations of emissions set by US-authorities for new fertiliser projects and compares such limitations with current BAT-values and best values achieved from other projects (BACT-values), respectively.
Discussed are related limits for the following emissions:
– Volatile organic compounds (VOCs) as ozone pre-cursors.
– NOx greenhouse gases (GHG), in this case N2O, CO2 and CH4.
– dust emissions and stack emissions, including opacity.
With respect to the following plant types:
– ammonia plants including steam reformers for syngas production.
– nitric acid plants.
– granulation plants (urea and ammonium nitrate plants).
The purpose is to share recent experience and offer a dialogue between operators, authorities and technology providers for ammonia, nitric acid and granulation plants with the aim to have an up-date and a guideline which emission limits are technically achievable today considering sustainable plant operation and appropriate operating margins.
Dr Klaus Ruthardt, ThyssenKrupp Industrial Solutions AG, Business Unit Process Technologies, Friedrich-Uhde-StraÃƒÅ¸e 15, 44141 Dortmund, Germany.
24 pages 8 figures, 6 tables, 2 reference