Large Volume Inorganic Chemicals - Ammonia ... - ammk-rks.net

Chapter 1111.2 Recommendations for future workData collectionA lot of information was provided to develop this document. However, for the determination ofBAT, it would have been desirable to be able to rely on more data from individual exampleplants, addressing particular techniques more specifically in the context with the achievedperformance levels (loads, concentrations, volume flows; full monitoring reports would havebeen even better). In the following cases, the majority of the information was provided asaggregated data:• for the production of ammonia• for the production of phosphoric acid• for the production of HF• for the production of urea.Similarly, the determination of BAT was hindered in cases where the number of example plantswas low in comparison to the diversity of the production to be assessed. This applies especiallyto the manufacture of NPK and AN/CAN. Table 11.2 gives some recommendations for futuredata collection.Production of Issue RemarkAmmoniaHFEnergy consumptionPartial oxidationDust emissionsEnergy consumptionMore example plants with net energyconsumption figures related to the appliedtechniques. Examples for revamps andachieved improvements.Not enough information was available to workand conclude on partial oxidation.Broaden the data basis.In-depth assessment of energy consumption.UreaAN/CANHNO 3In generalDust and NH 3 emissionsEnergy consumption(see, e.g. Table 8.19)Emissions to airEmissions of N 2 OEmissions to waterMass balancesMore example plants with consumption andemission figures related to the appliedtechniques. Examples for revamps andachieved improvements.Because of an insufficient data basis, noconclusions could be drawn for emissions toair from neutralisation, evaporation,granulation, prilling, drying, cooling andconditioning.Collect information and emission data fromexample plants which have/will haveimplemented De-N 2 O techniques.Collect more data sets on discharged wastewaters (volumes and concentrations) andremoval efficiencies of applied waste watertreatment.More examples for mass balances (see BATconclusions in Section 1.5.1) would provide abetter understanding.Table 11.2: Some recommendations for future data collection400 Large Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers