Flue gas
line 1
Bag house filter
NaOH
District
heating
Ca(OH)
2
Ca(OH)
2
Flue gas
line 2
Process water to furnace
To recipient
NaOH
General:
The contract on upgrading the flue gas treatment plant at
SYSAV´s incineration lines 1 and 2 was signed on the 15th of
November 2004. In December 2005 the installation was handed
over to the client, as scheduled. The purpose of the contract was to
meet the EC waste incineration directive with regard to emissions
of acidic components, ammonia and dioxin. In addition integrated
energy recovery takes place by means of flue gas condensation.
Data:
• Capacity, waste:
2 x 12 t/h
• Flue gas flow to scrubber:
51.000 - 183.000 Nm
3
/h, w.g.
• Energy recovery by condensation: 6 MW
• Gas cleaning requirements:
Inlet scrubber Cleaned gas
- NH3
200
< 10
mg/Nm
3
dg@11% O
2
- HCl
200
< 10
mg/Nm
3
dg@11% O
2
- SO
2
600
< 50 mg/Nm
3
dg@11% O
2
- HF
5
< 1
mg/Nm
3
dg@11% O
2
- Dust
<10
< 10
mg/Nm
3
dg@11% O
2
- Dioxin
0,5
< 0,1
ng/Nm
3
dg@11% O
2
Description:
The incineration lines 1 and 2 at SYSAV were built in 1973. Before the conversion SYSAV operated these lines
with a common bag house filter system. Lime was injected prior to the filters for removal of acidic components.
Included in the upgrading contract was design and installation of one common scrubber of the “tower packing
type”. Exhaust fan systems, flue gas reheating and an effluent water treatment system were also provided.
The various scrubber stages are all equipped with ADIOX
®
tower packing material for dioxin removal.
In the first stages of the scrubber, NH
3
together with HCl are separated. NaOH injected into the third stage will
facilitate efficient SO
2
-removal. Most of the HF is also separated from the gas.
Finally the flue gases are cooled by a circulating cooling water system (indirect district heating water) enabling a
substantial amount of energy to be recovered.
GÖTAVERKEN MILJÖ AB
Postal address Box 8876, SE-402 72 Göteborg, Sweden
•
Visiting address Anders Carlssons gata 14
Tel +46-31-50 19 60
•
Fax
+
46-31-22 98 67
www.gmab.se
