Multi-fuel scaled-down autothermal pure H sub(2) generator: Design and proof of concept
This article presents experimental results of an autothermal scaled-down system for H sub(2) production. Pure atmospheric pressure H sub(2), separated in situ by Pd-Ag membranes, is produced by steam reforming (SR) of methane, ethanol, or glycerol. Oxidizing the SR effluents in a separate compartmen...
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Veröffentlicht in: | AIChE journal 2016-06, Vol.62 (6), p.2112-2125 |
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Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | This article presents experimental results of an autothermal scaled-down system for H sub(2) production. Pure atmospheric pressure H sub(2), separated in situ by Pd-Ag membranes, is produced by steam reforming (SR) of methane, ethanol, or glycerol. Oxidizing the SR effluents in a separate compartment supplies the heat. The oxidation feed is axially distributed to avoid hotspots. The 1.3 L system, comprises 100 cm super(2) of membrane area, and generates H sub(2) flow rate equivalent to 0.15 kW at an efficiency of 25%. This process leads to comparable performance when different fuels are used. A mathematical model, validated by the measurements, predicts that increasing the membrane area relative to the outer surface area will substantially increase the efficiency and power output. This design serves as proof of concept for on-board pure H sub(2) generators, with flexible fuel sources, and holds a great promise to reduce the need for special H sub(2) transport and storage technologies for portable or stationary applications. [copy 2016 American Institute of Chemical Engineers AIChE J, 62: 2112-2125, 2016 |
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ISSN: | 0001-1541 1547-5905 |
DOI: | 10.1002/aic.15193 |