Biomass Combustion and Co-firing

Expert meeting on Combustion of Challenging Biomass Fuels , Lyon, May 4, 2010

Tuesday, 4 May 2010,
14:00-17:45


Expert workshop: 



Expert meeting on Combustion of Challenging Biomass Fuels
Chairperson: Jaap Koppejan


organised
by
IEA Bioenergy Task 32

location:
European Biomass
Conference, Conference Centre, Lyon


Aim:

An upcoming
issue driven by the difference in fuel price of is the desire to burn
uncommon and challenging fuels with low ash melting temperatures and
high N and Cl content, such as (pellets from) agrifuels such as straw
and press cake, reed canary grass, RDF, chicken litter, etc.

The combustion technology needs to be properly designed or adapted to be
able to deal with these fuels, as it may lead to excessive corrosion in
boiler tubes, excessive slagging and fouling as well as much higher
emission of NOx and (fine) particles.


At the same time, it can be observed that the superheater steam
temperature (and thereby electric efficiency) of biomass power plants
for challenging fuels has over the years increased significantly, for
example there are power plants based on straw that generated steam of
540°C. This mainly depends mainly on the biomass composition, the boiler
configuration and the boiler materials used.

At the European Bioenergy Conference in Lyon (May 2010), Task 32
organised an expert workshop on ‘Combustion of Challenging Biomass
Fuels’. The workshop presented:

  • The
    resource basis of alternative fuels for small scale and industrial
    combustion

  • The
    consequences of using challenging fuels for furnace design, boiler
    operation and emissions


  • Approaches for adaptations of technical design

  • Outlook
    for new boiler materials and limits in steam temperature


All presentations can be downloaded
from below

14:00
Introduction

Jaap Koppejan
 
14:10
The Fuel Handbook-
How to introduce new varieties of bio-fuel in a plant

Birgitta Strömberg

Värmevorsk, Sweden
14:30
European standards
for solid biofuels – case pellets from agribiomass

Eija Alakangas

VTT, Finland
14:50
Variations in
biomass composition

David Baxter

JRC, Netherlands
15:10
Combustion
characteristics of Miscanthus based on lab-scale and pilot plant
combustion trials in Austria

Thomas Brunner

BIOS
Bioenergiesysteme, Austria
15:30
Operation
experience from combustion of biomass at elevated steam
temperatures with the focus on challenging biomass fuels

Markus
Bolhàr-Nordenkampf

AE&E, Austria
15:50
First experiences
with chicken litter fired BFB combustion plant at Moerdijk,
Netherlands

Ria Kalf

KEMA, Netherlands
16:15 coffee break    
16:45
Plant experience
with the firing and co-firing of challenging biomass fuels

Bill Livingston,


Doosan Babcock, UK
17:10 Discussion
17:30 End of workshop