Beyond Biogas: Upcycling Wet Wastes - ARPA-E · February 28, 2017 Beyond Biogas: Upcycling Wet...
Transcript of Beyond Biogas: Upcycling Wet Wastes - ARPA-E · February 28, 2017 Beyond Biogas: Upcycling Wet...
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Beyond Biogas: Upcycling Wet Wastes
February 28, 2017
Joseph A. Rollin, Ph.D.
Special Government Employee (Former Fellow)
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CH4, CO2
H2S
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Beyond Biogas – A Potential ARPA-E Program
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> 3% US GHG
Emissions
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Beyond Biogas – A Potential ARPA-E Program
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Wet feedstocks could produce 15% of America’s fuel
$?
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Current Wet Waste Conversion – Anaerobic Digestion
Industrial Scale isn’t Competitive
▸ Biogas upgrading is required before
addition to pipelines
▸ Natural gas significantly cheaper
– Biogas $3.50-7.50/MMBTU
– NG $1.50-3.50/MMBTU
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CH4, CO2
H2S
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6Beyond Biogas: Upcycling Wet WastesFebruary 28, 2017
Biogas
Hydrocarbons
5-25 g/L/day
CH4, CO2
H2S
Current Wet Waste Conversion – Anaerobic Digestion
Feedstock
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7Beyond Biogas: Upcycling Wet WastesFebruary 28, 2017
Biogas
Hydrocarbons
5-25 g/L/day
Natural Gas $2.50 - 3.50 / million BTU
Biogas $6.00 - 13.00 / million BTU
CH4, CO2
H2S
Current Wet Waste Conversion – Anaerobic Digestion
Feedstock
Image from Biofuels and Bioproducts from
Wet and Gaseous Waste Streams:
Challenges and Opportunities (2017) US
Department of Energy
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A Bioreactor Millennia in the Making
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Beyond Biogas
9Beyond Biogas: Upcycling Wet WastesFebruary 28, 2017
Feedstock
Biogas
Anaerobic Digestion
250 g/L/day
5-25 g/L/day
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Beyond Biogas
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Feedstock
Biogas
Co-Treatment
Anaerobic Digestion
Separations &
Upgrading
Hydrocarbons
250 g/L/day
5-25 g/L/day
$10,000/y
$500,000/y
Microbial Community Engineering
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Beyond Biogas: Upcycling Wet Wastes
Integrated Product
Separations
Beyond Biogas
MARINER
Innovative
Reactor Design3%
$
Advanced
Understanding &
Control of Microbial
Communities
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Where can we look for inspiration?
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