ISWA

Peter Simoës

Waste & Energy CompanyCity of Amsterdaminfo@afvalenergiebedrijf.nl

How to boost energy production from waste?

Amsterdam’s Vision on the 4th-generation Waste-2-Energy

CEWEP congress

Bordeaux, June 12th 2008

4th generation Waste-2-EnergyCity of AmsterdamWaste and Energy Company

1st Incineration 1919-1969 AVI Noord 1969 - 1993

Waste to Energy plant 1993 - Waste Fired Power Plant 2007 -

Starting pointsSystematic approach to optimise recoveryUsing proven technologies in new combinationElectrical efficiency > 30%New logistic conceptBudget: 400 M€Construction start: Begin 2004Completion: End 2006

HR-AVI project = WFPP

CONCEPT for RECOVERY

Incineration Fluegasscleaning

Chemicals 10 kg

Fluegass

Municipal SolidWaste

850 kWh/ton = 30 % of energy in waste

Salt 7 kgGypsum 5 kgFly-ash 10 kgResidue 5 kg

Non Ferro 5 kgIron 25 kgSand 100 kgGranulate 100 kgFines 20 kg

SAI

Output perton of waste:

ISWA

High Efficiency concept WFPP®

3e2e1e

Evaporator Superheater Economiser

2 3 4

terti

secu

terti

secu

Prim

1st 2nd850°C

3rd650°C

SSH1

180°C

1

4th

α

Ketelas 1 Ketelas 2

Bodemas

SSH2

SSH3

SSH4

ECO1

ECO2

ECO3

Sketch boiler design

Drum

Boiler

Reheater

25°C0,03 bar

Superheater

x12x

320°C13 bar

190°C14 bar

480°C130 bar

335°C135 bar

Turbine

Superheated steam 440-480°CSteam pressure 125-130 barSteam reheating after HP-turbineExtra economiser

Sketch steam reheating

Boiler WFPP

Flue-gas cleaning WFPP

Generator

Reheater (2x)

Condensor

Cooling water

HP-Turbine LP-Turbine

Reheaters

Construction of WFPP in Amsterdam

Operational results

24,9%

18,0%

22,0%

28,1%

22,3%

29,2%30,6% 30,7% 31,5% 31,7% 31,5% 31,1%

0%

5%

10%

15%

20%

25%

30%

35%

Elec

tric

al e

ffici

ency

Net electrical Efficiency WFPP First half-year: Monthly averages + Best day per month

Summary

• 1st year of operation.• Operation is good: input from experience of

Amsterdam worked out well.• Boiler & Flue gas cleaning perform better than

expected.• Optimisation for material recovery from flue gas• New project for wet bottem ash cleaning in 2010.

• Net Energy efficiency of >30% Proven.

AEB Amsterdam

Picture WFPP