1. Centre for Energy and
Resource Technology:
Circulating Fluidised Bed
Combustor / Gasifier &
Hot Gas Filtration Unit
Centre for Energy and Resource Technology
School of Applied Sciences,
Cranfield University,
Bedfordshire,
MK43 0AL, UK.
www.cranfield.ac.uk/sas/energyresourcetechnology
• 800 – 1000 °C
• 300 kWth
• Atmospheric pressure
• Gas analysis
• Temperature monitoring
• Heat & mass balance
Rig Uses
Specification
Fuels•Coal
This rig can be operated
either as a circulating
fluidised bed combustor
(CFBC) or a circulating
fluidised bed gasifier
(CFBG):
•CFBC enables studies of
both air- & oxy-fired
combustion of various fuels.
•CFBG produces syngas
(synthesis gas) from various
fuels which can be cleaned
and used in gas engines.
Different gas cleaning
methods exist for CFBG:
•Using a hot gas filtration
unit (HGFU), particles can
be removed at high
temperatures
•Using a heat exchanger
allows low temperature
particle removal.
Schematic: CFBC
O2, air
Coal,
biomass
Char
collection pots
Fan
Fan
Gas
clean up
Cyclone
Cyclone
Cyclone
Heat
exchanger
Vent
Flue gas recycle if oxy-firing
Circulatingfluidisedbed
combustor Gas
GasGas
Particulates
Schematic: CFBG
O2, H2O, air
Coal,
biomass
Fan
Gas
clean up
Hotgas
filtrationunit
Cyclone
Vent
Circulatingfluidisedbed
combustor
Gas
Particulates
Trace
heating
Heat
exchanger
Heat
exchanger
Particle
removal
Gas
engines
Char
collection
pot
Flare
•Biomass