Materials for the Hydrogen Economy (2007) Episode 6 doc
Materials for the Hydrogen Economy (2007) Episode 6 doc
... difference in
the square root of hydrogen partial pressure for the feed (pH
2
f
) and sweep (pH
2
s
) gases at 900
and 60 0°C
5024.indb 151 11/18/07 5:52:11 PM
154 Materials for the Hydrogen Economy
exposure ... matrix.
5 ,6
In these cermets, the metal
enhances the hydrogen permeability of the ceramic phase by increasing the elec
-
tronic conductivity of the...
Materials for the Hydrogen Economy (2007) Episode 2 docx
... from the
base to the top of the gasier, with the hot ash at the base of the gasier preheating
incoming steam and O
2
gases. The countercurrent gas ow of the syngas at the top
of the gasier ... H
2
/CO ratios.
20
The
H-to-C mole ratios for some carbon feedstock materials are about 0.1 for wood, 1 for
coal, 2 for oil, and 4 for methane.
10
In genera...
Materials for the Hydrogen Economy (2007) Episode 8 docx
... 5:53: 36 PM
1 96 Materials for the Hydrogen Economy
This is a particularly severe requirement for a material when it is nearly depleted (the
fuel tank is nearly empty).
Hydrogen transport in the ... number of other factors, including system design, the other materials
used to fabricate the system components, thermal requirements (including the hydride
materials e...
Materials for the Hydrogen Economy (2007) Episode 12 pot
... and, 162 -64
function, 159, 161
gas impurities effect on, 166 -69
gas pressure effect on, 165 -66
hydrogen energy applications, 164 - 76
material conditions affecting steel in,
159 -60 , 161 -62
materials ... Hydrogen Economy
Pt-loading reduction, 2 56- 62
support materials, 267 -72
transition metal-based, 265 -66
Catalytic hydrolysis reactor, 22
Cathode catalyst materials, 26...
Materials for the Hydrogen Economy (2007) Episode 1 ppsx
... 5:44:11 PM
xvi Materials for the Hydrogen Economy
Co–polypyrrole–carbon. However, none of these have matched the catalytic perfor-
mance of Pt.
The electrolyte membrane presents critical materials ...
properties. It is these properties and the current efforts in developing these materials
that are described in this book. A brief introduction to the material issues for...
Materials for the Hydrogen Economy (2007) Episode 3 pdf
... Background 61
3.2 Materials and Design 62
3.2.1 Series-Connected Tubes 63
3.2.2 Tubular Stack Design 65
3.2.3 Planar Stack Design 65
3.3 Modes of Operation 66
3.4 Alternative Materials for High-Temperature ...
processes, provides an attractive option for efcient generation of ultra high purity
(UHP) hydrogen.
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58 Materials for t...
Materials for the Hydrogen Economy (2007) Episode 4 pdf
... limit.
FIGURE 3.7 Performance stability of an electrolysis stack.
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76 Materials for the Hydrogen Economy
the scale, disrupting the scale formation. In contrast to the fuel ... high-temperature materials and the focus on
hydrogen technologies provide the basis for rapid progress in this area.
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70 Mat...
Materials for the Hydrogen Economy (2007) Episode 5 potx
... 11/18/07 5: 46: 15 PM
98 Materials for the Hydrogen Economy
The long-term corrosion performance and creep characteristics of the alloys in
the present environment will need to be addressed in the H
2
SO
4
... D
E
F
G
H
0 h
5 76 h
970 h 1570 h
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120 Materials for the Hydrogen Economy
17. Kubo, S. et al., Corrosion Test on Structur...
Materials for the Hydrogen Economy (2007) Episode 7 potx
... 11/18/07 5:52: 36 PM
166 Materials for the Hydrogen Economy
The data in gure 7.1 through gure 7.3 indicate that steel vessels and pipelines
in hydrogen economy applications (i.e., at high hydrogen ... steel.
47
b
Limits for P and S in new hydrogen gas vessels are 0.025 wt%.
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174 Materials for the Hydrogen Economy
7.4 .6 e...
Materials for the Hydrogen Economy (2007) Episode 9 pot
... sample, on the hydrogen side of the air hydrogen sample,
or on the hydrogen hydrogen sample. The oxidation behavior on the hydrogen side
of the air hydrogen sample was similar to that on the hydrogen hydrogen ... PM
240 Materials for the Hydrogen Economy
between the glass–ceramics and the ferritic steel on the hydrogen side. However, it is
not clea...
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