Grøn gas gennem metanisering

Confidential

Claus Friis Pedersen clfp@topsoe.dk

Grøn gas gennem metanisering

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

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0,50

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2,50

Pigs

Cattle

Wind,kW

NG MTOe

Haldor Topsøe group (2011)Catalyst and engineering for

Fertilizers

Refineries

The environmental sector

Synthetic fuels

Turnover: DKK 4.4 billion

Result: DKK 397 MM

2091 employees

250 employees in R&D

Synthetic Natural Gas (SNG) - Xinjiang Qinghua

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

Transport SNG in pipelines rather than coal on trucks

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20%

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120%

XinjiangQinghua

Gasifiedbiomass

Biogas

Me

tha

na

tio

n R

ela

tiv

e C

os

t

Fuel Cell and Electrolyser

½O2

H2 H2O

½O2

H2O + 2e- → H2 + O2-

O2-

O2- → 2e- +½O2

H2 + O2- → H2O + 2e-

O2-

½O2 + 2e- → O2-

SOFC SOEC

H2H2O

Exergy Flows

Biogas upgrade value proposition # 1

BiogasCH4 +30-40% CO2

H2Electrolysis

BioGas CH4 40 PJ

”Electro-gas” CH4, 27 PJ

Biogas Upgrade

CO2

Fuel synthesis

Biogas upgrade value proposition # 2

Spot prices 2011

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kr/

kW

h

Pre studies

Metan samfundet SOEC biogas upgrade

The business case (w. 5% interest)

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Expensis NG gasprice

Biogasprice

Expensis NG gasprice

Biogasprice

Power Biogas Investment Operational cost Gas sale Heat sale

2020100% Electrolysis

203591% Electrolysis

Mio

DK

K

Plant size:

75 mio Nm3 biogas/year

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