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EnergyGenera*onfromtheDecomposi*onofMicrobially‐GeneratedNitrousOxide
PI:ProfessorBrianCantwellAeronau4csandAstronau4cs
GraduateStudent:YanivSchersonAeronau4csandAstronau4cs
Collabora4onwithProfessorCraigCriddleCivilandEnvironmentalEngineering
1
Support: The Woods Institute for the Environment
OverviewofResearch
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Tadiaba4c=1640˚C
N2ODecomposi4on
N2O½O2+N2+82kJ/mol
Source:zakirov3
MEMSN2OThruster
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Small‐ScaleThruster
• 12testsconducted
• Rhonaluminacatalyst
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PerformanceParameters
BedLoading 5kg/m2/sec
c* 71%
Tpreheat 400°C(100WPower)
Tchamber 888°C
Scaled‐UpDevice
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Scaled‐UpDevice
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PerformanceParameter
Pchamber=78psi
BedLoading=5kg/m2/sec
c*=81%
Tint=300°C
Pin=30W
Where can we get N2O tomake ultra-clean energy?
NitrogenFixa4on
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HaberProcess
N2 +3H
2 → 2NH
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NaturalFixa4on
Nitrifica4on
Denitrifica4on N2O
TheProblem:NitrogenWaste
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HaberProcess
CropsFossilFuels
TotalReac4veNitrogen
TheProblem:NitrogenWaste
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BioreactorOverview
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CurrentlybioreactorsminimizeN2OandareinefficientProposetomaximizeN2Oproduc4on,muchmoreefficient
Thiscouldleadtoagroundbreakingtechnologyinwastewatermanagement!
TheSolu4on
13BioreactorN2OThruster
1. Convertreac4veNitrogenwastetoN2Ogas
2. DecomposeN2Otoenrichedair+genpower
Source:Prof.Criddle
CoupledSystem:Bioreactor
AOBaerobic
.66NO2‐+.33NH4
+
O2
½N
2O
NH3 Eff
AOBanaerobic
41kJ
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¼O2+
½N2
ImpactonBioreactorOpera4on
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LocalWastewaterTreatmentPlants
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