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

Chapter 55.3 Current emission and consumption levelsThe following data all relate to the wet process route based on the use of H 2 SO 4 . For emission and consumption levels from the thermal process, see Section 5.4.15.Table 5.5 shows the reported consumption levels for the production of phosphoric acid, Table 5.6 emissions to air, Table 5.7 emissions to water and Table 5.8emissions from the disposal of solids to water.H 2 SO 4Consumption of Per tonne P 2 O 5 Remarks Source2.6 – 3.5 tonnes Depending on the rock composition [31, EFMA, 2000]Phosphate rock2.6 – 3.3 tonnes Plant: Nilefos. Levels depend on the rock composition [33, VITO, 2005]3.1 tonnes Hydro Agri, HDH-2 process2.8 tonnes[29, RIZA, 2000] xPlant: Kemira, HDH-1 process2.6 tonnes2.4 – 2.9 tonnes Plant: Nilefos. Levels depend on the rock composition [33, VITO, 2005]2.6 tonnes Hydro Agri, HDH-2 process51 m 3 Plant: Kemira, HDH-1 process Including scrubber water [29, RIZA, 2000] x52 m 3 Hydro Agri, HDH-2 process Including scrubber waterProcess water 3.6 – 4 m 3 Plant: Nilefos. Depending on the acid concentration obtained in the filter Not including scrubber water [33, VITO, 2005]4 – 7 m 3 Depending on the concentration of the weak acid obtained in the filter andNot including scrubber waterwhether the condensed water in the evaporation loop is recycled[31, EFMA, 2000]100 – 150 m 3 Depending on the processCooling water110 – 120 m 3 Plant: Nilefos Cooler and condenser water [33, VITO, 2005]40 – 50 m 3 Hydro Agri, HDH-2 process Cooler and condenser water101 m 3 Cooler and condenser waterPlant: Kemira, HDH-1 process173 kWh[29, RIZA, 2000] xElectric power167 kWh Hydro Agri, HDH-2 process170 – 180 kWh Plant: Nilefos [33, VITO, 2005]120 – 180 kWh Depends on whether grinding is carried out or not0.5 – 2.2 tonnes Mainly used for evaporation[31, EFMA, 2000]Steam1.0 tonne Hydro Agri, HDH-2 process2.2 tonnes Plant: Kemira, HDH-1 process[29, RIZA, 2000] x1.9 – 2.4 tonnes Plant: Nilefos, depending on the fraction to be concentrated [33, VITO, 2005]x plants closed because of discharge of the phosphogypsum to seaTable 5.5: Reported consumption levels for the production of phosphoric acid222 Large Volume Inorganic Chemicals – Ammonia, Acids and Fertilisers