contact: tobias pröll [email protected]
TRANSCRIPT
Institute of Chemical Engineering Page 1Achema 2012
Chemical Process Engineering
Research Group Zero Emission Technologies
Contact: Tobias Pröll
Institute of Chemical Engineering Page 2Achema 2012
Chemical Process Engineering
Working Group Zero Emission Technologies
Content
• Research Group Zero Emission Technologies
• Research Topics
• Project Group Chemical Looping Technologies
• Project Group Oxyfuel Combustion
• Project Group Process Simulation
• Links and Contact
Institute of Chemical Engineering Page 3Achema 2012
Chemical Process Engineering
The ZET team focuses on projects from the energy technology sector with the goal to substantially reduce greenhouse gas emissions. Here, three general approaches are put forward:
• Energy efficiency increase in industrial processes
• Renewable fuels substituting fossil energy
• Capture of CO2 from energy conversion processes
Working Group Zero Emission Technologies
Institute of Chemical Engineering Page 4Achema 2012
Chemical Process Engineering
Recent topics in investigation are:
• Fluidized bed systems for inherent CO2 capture (Chemical Looping Combustion).
• Catalytic reforming in fluidized beds (Chemical Looping Reforming).
• Oxyfuel combustion in circulating fluidized bed regime.
• Analysis and optimization of industrial fluidized bed combustors.
• Techno-economic evaluation of fossil energy substitution in industry.
Working Group Zero Emission Technologies
Institute of Chemical Engineering Page 5Achema 2012
Chemical Process Engineering
The research focus of the project group chemical looping technologies lies on CLC and CLR. In both technologies, oxygen is selectivelytransported by metal oxides.
Project Group Chemical Looping Technologies
Air-reactor
(AR)
Fuel-reactor
(FR)
air fuel
depleted air CO2, H2O
MeO-1
MeO
Chemical looping reforming (CLR)
Air-reactor
(AR)
Fuel-reactor
(FR)
air fuel
N2,Ar CO, H2, CO2, H2O
MeO-1
MeO
Chemical looping combustion (CLC)
Institute of Chemical Engineering Page 6Achema 2012
Chemical Process Engineering
Project Group Chemical Looping Technologies
The Dual circulating fluidized bed (DCFB) reactor system
AIR
REACTOR
lowerloop seal
upperloop seal
internalloop seal
air fuel
air-reactorexhaust
fuel-reactorexhaust
FUEL
REACTOR
120kW DCFB CL pilot rig
Institute of Chemical Engineering Page 7Achema 2012
Chemical Process Engineering
Main research activities in chemical looping include: Reactor hydrodynamics Detailed reactor modelling Process modelling Process demonstration
Project Group Chemical Looping Technologies
Fuelreactor
MeOxMeOx
MeO(x-1)MeO(x-1)
CondensationDepleted airDepleted air
(to compression)(to compression)
Air reactorAir reactor
QAR.QAR.
global air ratio > 1global air ratio > 1CO2 + H2O CO2
H2O
Solid fuel
Air Steam
endoxidizer
devola-tizer
chargasifier
Institute of Chemical Engineering Page 8Achema 2012
Chemical Process Engineering
Project Group Oxyfuel Combustion
post
com
bust
ion
heat
exc
hang
er
hot g
as fa
n
OxyFuel…• is a key technology for efficient
separation of CO2 from combustion of fuels.
• performs combustion of fuel with pure or enriched oxygen (mixing flue gas with pure oxygen).
• allows improved operation for low calorific fuels thanks to the possibility of variation of O2 content at the inlet.
• entails an energy penalty comparable or even less than for pre and post combustion CO2 capture.
• in CFB can reduce formation of thermal NOX compared to PCC.
Institute of Chemical Engineering Page 9Achema 2012
Chemical Process Engineering
Project Group Oxyfuel Combustion
Reactor
Loop seal
Primary
Air
Conveyor
Down-comer
Cyclone
Secondary
Air
Oxyfuel in circulating fluidized bed system
100kW Oxyfuel pilot rig
Cyclone separator
Fuel hopper
Flow meters
Filter box
Bed material cooling
Post combustion
chamber
Riser
Institute of Chemical Engineering Page 10Achema 2012
Chemical Process Engineering
Project Group Process Simulation
contribution of process simulation
first calculations, mass & energy balances, experiments
development process design &data for basic engineering
support operation start,plant optimization
fuel testing experimental results
plant parameters
operation data
simulation model
Process Simulation …… support the development of a production process and the scale up
laboratory pilot plant in a laboratory demonstration plant commercial production plant
© m+w zander
Institute of Chemical Engineering Page 11Achema 2012
Chemical Process Engineering
The tasks performed in the project group Process Simulation include:
• basic plausibility calculations• mass- and energy balances for new
production processes• development of new process designs• energy balances for new power plant concepts in
Energy- and Chemical engineering.
Furthermore, the focus also lies on various ‚research-tasks in the field of thermal fuel conversion, e.g. biomass gasification and municipal solid waste combustion plants.
Project Group Process Simulation
Institute of Chemical Engineering Page 12Achema 2012
Chemical Process Engineering
ContactResearch GroupZero Emission TechnologiesDipl.-Ing. Dr. Tobias Prö[email protected]. +43-1-58801-166304 Fax +43-1-58801-15999
Links http://www.vt.tuwien.ac.at/chemical_process_engineering_and_energy_technology/zero_emission_technologies/EN/www.chemical-looping.atwww.oxyfuel.at
Further Information