www.ecn.nl production of energy, biofuels and chemicals from biomass/waste gasification g. aranda...
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www.ecn.nl
Production of energy, biofuels and chemicals from biomass/waste gasification
G. Aranda AlmansaBrussels, 24 September 2015
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ECN R&D
Policy studies Solar energy Wind energy Bioenergy
Energy engineering Environment Energy
efficiency
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ECN bioenergy activities
•Characterization•Property
databases
•Torrefaction•Torwash•Pyrolysis•Fractionation•Biochar
•Combustion•Gasification•Biorefinery
•Gas cleaning•Tar removal•Gas conditioning•Separation
•Biofuels•Synthetic Natural
Gas (SNG)•Biochemicals•Power & Heat
Feedstock Pre-treatment Conversion Separation Product Synthesis
Technology development, licensing, techno-economic evaluations, LCA, consultancy, testing and analyses, due diligence
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Overview of ECN developments
Gas cleaning:
OLGAMILENA
gasification
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
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Gas cleaning:
OLGAMILENA
gasification
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
Overview of ECN developments
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MILENA gasification
• Highly efficient.• Complete fuel conversion.• High heating value of gas (12-15 MJ/Nm3 )
without need for ASU.• Fuel flexible, tested: wood, waste wood,
grass, straw, soya residue, RDF/SRF, sunflower husks, DDB , high-ash coal, lignite.
• Compact.• Commercially available: Royal Dahlman and
Thermax.• Scalable (> 100 MW).
www.milenatechnology.com
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MILENA and i-MILENA
Producer gas
Flue gas
Air
Biomass
Pyrolysis/ gasification
Combustion
Steam, CO2, air …
Producer gas
Flue gas
Air
Coal
Pyrolysis + gasification
Combustion
Steam
MILENA (biomass/waste) i-MILENA (coal)
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MILENA gasification
5 kg/h lab-scale facility at ECN, 2004
150 kg/h pilot facility at ECN, 2008
1 ton/h (4 MW) bio-SNG, 2016 (NL)
1 ton/h (4 MW) soya residue to power, 2014 (India)
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Gas cleaning:
OLGAGasification
MILENA
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
Overview of ECN developments
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OLGA tar removal
• Based on oil scrubbing.• Modified to deal with tars from different gasifiers.• Can reduce tar dew point below 0°C.• Recycle of heavy tars.• No loss of valuable gases (CH4, ethylene, BTX).• Commercially available from Royal Dahlman.
Colle
ctor
Raw gas
Abso
rber
Strip
per
Tar-free gas
Heavy tar and particles
Light tar
www.olgatechnology.com
OLGA tar removal
2 Nm3/h lab-scale facility at ECN, connected to MILENA, 2000
2 000 Nm3/h plant in France, connected to updraft, 2006
200 Nm3/h pilot facility at ECN, connected to MILENA 2003
2 000 Nm3/h plant in India, connected to
MILENA, 20142 000 Nm3/h plant, Portugal,
connected to CFB, 2010
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Overview of ECN developments
Gas cleaning:
OLGAGasification
MILENA
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
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Biomass-to-SNG
ESME system
Novel, patented technology for methanation of gas from biomass
gasification
Smart sequence of the different units
Especially designed for producer gas from
fluidized-bed gasifiers and indirect gasifiers
More efficient conversion to SNG: hydrocarbons are not removed but converted
Simultaneous HC reforming and methanation in pre-reformer heat balance
Reduced compression cost
ESME: ECN System for MEthanation
70% energy efficiency
from wood to bio-SNG
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Biomass-to-SNG
ESME system
MILENA OLGA Coolin
gBiomass
HDSPre-
reformer
Methanation
SteamH2S
removal
CO2 remova
l
Cooling
Methanation
Water remov
al
Bio-SNG to grid injection
Bio-BTX recover
y
Bio-BTX (optional)
CO2
~ 6 bar
~ 30 bar
Water
Water
Heavy tars
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Biomass to SNG500-hour test, October 2014
Number of operating hoursMILENA OLGA HDS SNG-2
580 570 560 515
Availability: - MILENA: ~90%. - MILENA + OLGA + ESME ~ 85%.
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DEMONSTRATION PLANT4 MW wood-to-SNG plant in Alkmaar (NL)
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Overview of ECN developments
Gas cleaning:
OLGAMILENA
gasification
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
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• First step after OLGA tar removal.• Scrubbing process for BTX recovery• Liquid BTX product: first liter in 2014• > 95% separation.• Simplifies downstream process to
green gas and reduces cost of bio-SNG.
BTX scrubber, 2 Nm3/h
BTX recovery
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Overview of ECN developments
Gas cleaning:
OLGAMILENA
gasification
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
Co-production of biofuels: H2
Gasification
Gas cleaning
Biomass
Steam
WGSH2
separationH2
Gas for heat/power/
synthesis
Excess renewable power (solar,
wind…)
Electrolysis
H2
Power-to-gas/chemicals
Gasification
Gas cleaning
Biomass Synthesis Upgrading
Bio-SNG/ biofuels/ chemicals
(e.g. methanation, F-T)
H2 separation
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Gas cleaning:
OLGAMILENA
gasification
Chemicals recovery:
BTX scrubber
Biofuels: H2, F-T, DME…
Bio-SNG production:
ESME
Outlook
…
…
…
www.ecn.nl
Thanks for your attention!ECNWesterduinweg 3 P.O. Box 11755 LE Petten 1755 ZG PettenThe Netherlands The Netherlands T +31 88 515 49 49 [email protected] +31 88 515 44 80 www.ecn.nl