BVT-Merkblatt zu Abwasser- und Abgasbehandlung

Emission Limit Values for Fertiliser Production
Process Source ELV (mg/Nm 3 )
Ammonium nitrate production Prill towers
- particulate
- ammonia
Ammonium nitrate production Neutralisers/reactors/coolers/driers
- particulate
- ammonia
Ammonium nitrate procuction Evaporators
- particulate
-ammonia
Ammonium phosphate produc-
- particulate
tion
- ammonia
Other fertiliser production - particulate
- sulphur oxides (as SO2)
- nitrogen oxides (as NO2)
- ammonia
- fluorides (as HF)
Annexes
Waste Water and Waste Gas Treatment 417
15
10
30
50
15
50
15
10
50
200
200
50
10
Emission Limit Values for Sulphuric Acid Production
Process Minimum conversion rate (SO2 to SO3)
New process Steady state: 99.7 %
Start up: 98 %
(hourly average for first 5 hours)
Source
Emission Limit Values for Ammonia Production
Emission ELV (mg/Nm 3 )
Steam reforming plants Nitrogen oxides (as NO2 at 3 % O2) 450
Sulphur dioxide (natural gas fuelled) 2
Carbon monoxide 10
Diffuse emissions 1 t/yr
Nitrogen oxides (non-continuous
emissions as NO2)
20 kg/h
Purge gas scrubber 40 g NH3 per tonne NH3
Partial oxidation plants – auxiliary
boiler flue gas
Partial oxidation plants – steam
superheater flue gas
produced
Sulphur dioxide 1700
Nitrogen oxides (as NO2) 700
Carbon monoxide (hourly maximum)
175
(daily average)
10
Particulates (hourly maximum)
50
(active ingredient) (daily average)
10
Nitrogen oxides (as NO2) 450
Sulphur dioxide (natural gas fuelled) 2
Carbon monoxide 30
Hydrogen sulphide 0.3
Methanol 100
Emission Limit Values for Specific Materials
Parameter mg/Nm 3
Mass flow threshold for ELVs
Cadmium 0.1 >1 g/h
Chlorides (as HCl) 10 >0.3 kg/h
Iodides (as HI) 5 >50 g/h
Carbon disulphide 5 >0.1 kg/h
Hydrogen cyanide 2 >50 g/h
Mercaptans 2 >0.1 kg/h
Amines (total) 10 >0.1 kg/h
Trimethylamine 2 >0.1 kg/h
Phenols / cresols / xylols 10 >0.1 kg/h
1,2-Dichloroethane 5 >0.1 kg/h
Dust – pesticide contaminated a
0.15 >1 g/h
Dust – pharmaceutical a
0.15 >1 g/h