Hydrogen purity introduction - MetroHyVe€¦ · MetroHyVe / HYDRAITE Workshop. 2019-09-11....
Transcript of Hydrogen purity introduction - MetroHyVe€¦ · MetroHyVe / HYDRAITE Workshop. 2019-09-11....
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Hydrogen purity introduction
Thor Aarhaug, SINTEF
MetroHyVe / HYDRAITE Workshop2019-09-11
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Overview
Applications of hydrogen Classification of hydrogen grades Fuel quality specifications Impact of impurities Hydrogen production Hydrogen purification
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Applications of hydrogen fuel
ICE Hydrogen turbine PEM technology
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Classification of hydrogen4
Slush hydrogen
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Fuel quality specification: non-PEM5
ISO 14687-2:2019
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Fuel quality specification: PEM automotive 6
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Fuel quality specification: PEM stationary 7
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Impact of impurities Function of feedstock Dilution (N2, Ar, He) Catalyst contamination (S, X, CO, HC) Balance of plant (inerts, CO2, CH4, H2O) Membrane contamination (NH3) Reversible and irreversible effects
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Garzon, ECS Transactions 25(1) 2009
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Hydrogen production
Source Fraction MtNatural gas .48 24Oil/naphtha .30 15
Coal .18 9Water electrolysis 0.039 2
Rest 0.001 0.005
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Hydrogen composition from production
Composition from production
Downstream purification Target quality
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Besancon, IJHE 34 (2009), pp. 2350-2360
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Hydrogen purification
Adsorption augmented by• Pressure (PSA)• Temperature (TSA)
Getter purifiers (Zr) (Pd) membranes Cryogenic
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Besancon, IJHE 34 (2009), pp. 2350-2360
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Hydrogen purity vs. cost
Impurity interdependence Affects H2 recovery QC cost driving
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Papadias, IJHE 34 (2009) 6021–6035
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Commercial hydrogen purity (HiQ example)
2.5 4.6 5.0 6.0 5.0 Zero 7.0
Purity 99.5 99.996 99.999 99.9999 99.999 99.99999
H2O ≤ 600 ≤ 5 ppm ≤ 3 ≤ 500 ppb ≤ 3 ppm ≤ 50 ppb
O2 ≤ 500 ≤ 5 ppm ≤ 2 ≤ 500 ppb ≤ 2 ppm ≤ 30 ppb
HC ≤ 0.5 ≤ 100 ppb ≤ 200 ppb ≤ 30 ppb
N2 ≤ 3000 ≤ 5 ≤ 500 ppb ≤ 5 ppm
CO ≤ 100 ppb ≤ 1 ppm ≤ 30 ppb
CO2 ≤ 100 ppb ≤ 1 ppm ≤ 30 ppb
Total impurities
5000 ppm 40 ppm 10 ppm 1 ppm 10 ppm 100 ppb
13FCV fuel: 99.97%, ≤ 200 ppb CO
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Commercial hydrogen purity (AIRGAS example)
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Sampling of hydrogen for quality control
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Analysis of hydrogen samples
Comprehensive Expensive Challenging Need Risk Assessment to define some of the tolerance limits
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Hydrogen purity: HyCoRA results
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Thor Aarhaug
+4792682444
hydraite.eumetrohyve.eu
THANK YOU
This project has received funding from the Fuel Cells and Hydrogen 2 Joint Undertaking under grant agreement No 779475. This Joint Undertaking receives support from the European Union’s Horizon 2020 research and innovation programme and Hydrogen
Europe and Hydrogen Europe Research.