advancing utilization of manure methane digester · advancing utilization of manure methane...
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Advancing Utilization of Manure Methane Digester�
Funding for this project was recommended by the Legislative Commission on Minnesota Resources
from the Minnesota Environment and Natural Resources Trust Fund ($204, 375)�
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Haubenschild Dairy Farm Energy Production�
Princeton, Minnesota�
Milk Production + Crop Production +
Electrical Production + Future Hydrogen
Production
=
Farm Income Diversification
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Challenges to using biogas
for a fuel cell ��Hydrogen sulfide removal
��Initial concentration 3000-5000 ppm
��Need concentration < 25 ppb
��Moisture removal
��Need dry gas
��Dewpoint < -30 degrees Celsius
��Carbon dioxide removal
��Need concentration < 5 ppm
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Emissions from Haubenschild Generator
Compared to Plug Power™
Proton Exchange Membrane (PEM) Fuel Cell
�� ( 799ppmv) 4.18 g/kWh
�� (2963 ppmv) 25.5 g/kWh
�� (277 ppmv) 3.34 g/kWh
�� (2.46 %) 53 g/kWh
�� ( <1 ppmv) 0.014 g/kWh
�� (<1 ppmv) <.0023 g/kWh
�� (<1 ppmv) <0.030 g/kWh
�� (<1%) 14.5 g/kWh
Fuel Cell Engine Generator
CO
NOx
SOX
CX HY
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