Grøn gas gennem metanisering
Claus Friis Pedersen clfp@topsoe.dk
Confidential
Vehicle to grid (V2G) is the future!
An integrated energy infrastructure
CH4 + CO2 + 4H2
2CH4 + 2 H2O
The right factors for biogas upgrading
Livestock, Windturbine capacity and NG consumption per capita
2,50
2,00
1,50
Pigs
Cattle
Wind,kW
NG MTOe
1,00
0,50
en
ed
K
S.
Sw
or
e
a
SA
U
e
nc
Fr
a
hi
na
C
an
y
er
m
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G
an
ad
C
d
la
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Po
ai
n
Sp
nd
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la
H
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m
ar
k
0,00
Haldor Topsøe group (2011)
Catalyst and engineering for
 Turnover: DKK 4.4 billion
 Fertilizers
 Result: DKK 397 MM
 Refineries
 2091 employees
 The environmental sector
 250 employees in R&D
 Synthetic fuels
Synthetic Natural Gas (SNG) - Xinjiang Qinghua
Methanation Relative Cost
Transport SNG in pipelines rather than coal on trucks
120%
100%
80%
60%
40%
20%
0%
Xinjiang
Qinghua
Gasified
biomass
Biogas
 50 PJ corresponding to >50% of the total Danish Natural gas consumption
 5 PJ gasified biomass SNG plants are projected
 0.1 PJ would be a large biogas methanation unit
Fuel Cell and Electrolyser
SOFC
H2O
H2
SOEC
H2
H2O
H2 + O2- → H2O + 2e-
H2O + 2e- → H2 + O2-
O2-
O2-
½O2 + 2e- → O2-
O2- → 2e- +½O2
½O2
½O2
Exergy Flows
Biogas upgrade value proposition # 1
Biogas
CH4 +
30-40% CO2
Biogas Upgrade
BioGas
CH4 40 PJ
CO2
Electrolysis
H2
Fuel synthesis
”Electro-gas”
CH4, 27 PJ
Biogas upgrade value proposition # 2
Spot prices 2011
1
0.8
kr/kWh
0.6
0.4
0.2
0
1
-0.2
-0.4
1001
2001
3001
4001
5001
6001
7001
8001
Pre studies
Metan samfundet
SOEC biogas upgrade
The business case (w. 5% interest)
Power
Biogas
Investment
Operational cost
Gas sale
Heat sale
60
Mio DKK
50
2020
2035
100% Electrolysis
91% Electrolysis
40
Plant size:
30
75 mio Nm3
biogas/year
20
10
0
Expensis NG gas
price
Biogas
price
Expensis NG gas
price
Biogas
price
Pilot test at Foulum – 5 Nm3/h
CH4 + CO2 + 4H2
2CH4 + 2 H2O
Summary
 Electrolysis based biogas upgrade
has the potential to:
– Store electricity as fuel
– Increase the biogas production
 The business case is interesting but
many aspects are still uncertain
 A pilot scale field trial is planned for
2015