Status of Bio2G and Gasification testing at GTI
Dr. Björn Fredriksson Möller
E.ON Gasification Development AB
Contents
1. Background & status update
2. Technology options in Bio2G – gas cleaning
3. GTI testing
4. Next step – Alkali model for hot gas cleaning system
5. Conclusions
2
SGC International Seminar on Gasification 2014 - Bio2G October 15
Bio2G – A reference plant in Sweden for production of bioSNG by thermal gasification
Facts
- Production capacity 200 MWbio-SNG (1,6
TWh/yr) + heat & electricity
- Forest residues as feed stock
- To be located in Malmö/Landskrona
- Awarded for NER300 support; 203 M€
available
Technology
- Pressurized O2-blown
gasification (Andritz, FI)
- Gas cleaning and
methanation, (Haldor
Topsoe, DK)
Project is awaiting decisions on the long-term policy instruments for biofuels
3
SGC International Seminar on Gasification 2014 - Bio2G October 15
A new concept – but mainly based on mature
technology
Forest
Fuel
Transport
Fuel Dryer
Reception/Preparation/Storage
Auxiliary systems
Steam
Cooling water, District Heating,
Bulk material, etc
Boiler/Turbine
Electricity
Air Separation
Unit (ASU)
Dry
biofuel
Oxygen
Clean
syngas
Compression
Gas
conditioning
Gas Cleaning
CO2 Removal
Synthesis gas
(CH4 H2 CO tar, etc.)
Methanation
CH4
H2O
Process diagram Bio2G
4
SGC International Seminar on Gasification 2014 - Bio2G October 15
Gasification
Drying
Compression
Biogas
(Biomethane)
Technology options in Bio2G – dust cleaning and
reforming
“Clean” tar reforming
Gasification
Cooling
~850°C
Dust cleaning (HGF)
~550-850°C
Reforming
Cooling
~800-900°C
=> Verification test at GTI for “Clean” tar reforming performed, further
analysis at SFC-CDGB. Slipstream HGF operated at 700 °C
“Dusty” tar reforming
Gasification
Reforming
~850°C
~800-900°C
Cooling
Dust cleaning (Bag)
~250°C
=> Reformer with improved dust handling installed in Skive during 2014
5
SGC International Seminar on Gasification 2014 - Bio2G October 15
GTI test facility – an integrated biorefinery pilot plant
=> Test facility for TIGAS production of gasoline from biomass
6
SGC International Seminar on Gasification 2014 - Bio2G October 15
Hot filtration of syngas – fullstream filter @ 500 °C
=> Smooth operation from hot gas filters during the duration of test.
Performance requirement fully met.
7
SGC International Seminar on Gasification 2014 - Bio2G October 15
Hot filtration of syngas – slipstream filter @ 700 °C
=> A total of more than 150 hrs operation, no solid slipping and no clogging
behaviour. Appearance of dust differs with temperature.
8
SGC International Seminar on Gasification 2014 - Bio2G October 15
Alkali dust collection behind slip stream filter
Alkali Probe Temperatures
Test 2
600
550
500
TC1
°C
TC2
TC3
450
TC5
TC6
400
350
300
2013-10-22 19:00
2013-10-23 19:00
2013-10-24 19:00
=> Alkali probe cooled to a sliding temperature profile exposed to cleaned
gas flow.
9
SGC International Seminar on Gasification 2014 - Bio2G October 15
2013-10-25 19:00
Next step: Alkali model for hot gas cleaning system
Main aim:
Model and reproduce result from GTI testing using mathematical modelling.
Verification with results from ash analysis from fullstream filter ash,
slipstream filter ash, as well as deposits from alkali probe.
Project performed within SFC – CDGB with support from SFC – B4G on
thermodynamic alkali modelling
Partners: KTH, UmU, LTU, E.ON & Andritz
10
SGC International Seminar on Gasification 2014 - Bio2G October 15
Conclusion
Bio2G still awaiting market/political signals supporting growth of vehicle gas
market
NER300 production support for Bio2G awarded – up to 203 M€ available
Successful testing of gas filtering (as well as gasification and tar reforming)
at GTI in Chicago – two viable technical options for gas cleaning at hand
Experimental results from GTI have brought a better understanding of alkali
behaviour and are important for further design considerations. It will also
support further modelling work planned at SFC.
Acknowledgement: Thanks to GTI, Haldor Topsoe and Andritz/Carbona
11
SGC International Seminar on Gasification 2014 - Bio2G October 15

2014 FLD SWITCHBACK™