Materials for the Hydrogen Economy (2007) Episode 2 docx
Materials for the Hydrogen Economy (2007) Episode 2 docx
...
according to the reaction CO + 2 H
2
→ –[CH
2
]– + H
2
O. Fischer–Tropsch
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8 Materials for the Hydrogen Economy
hydrodesulfurization (see gure 1 .2) . When gasication ... (wt%)
Material
(wt%) Brick Type
A B C
a
Cr
2
O
3
90.3 87.3 81.0
Al
2
O
3
7.0 2. 5 0.4
MgO 0 .28 0. 12 17.0
ZrO
2
0.01 5 .2 NA
SiO
2
0.3 0 .2 0.1
Fe
+2...
Materials for the Hydrogen Economy (2007) Episode 8 docx
... 20 9
10.1 .2 The Electrolyte for SOFCs 21 0
10.1 .2. 1 Requirements 21 1
10.1 .2. 2 Materials 21 1
10 .2 Fluorites: ZrO
2
, CeO
2
, and Bi
2
O
3
21 2
10 .2. 1 ZrO
2
-Based Materials 21 2
10 .2. 2 CeO
2
-Based Materials ... H2 122 H2 g/l
NaBH4 10.6 wt% H2 114 H2 g/l
KBH4 7.5 wt% H2 83 H2 g/l
Mg(BH4 )2 14.8 wt% H2 110 H2 g/l
Ca(BH4 )2 11.6 wt% H2 107 H2 g/l
Zn(BH4...
Materials for the Hydrogen Economy (2007) Episode 12 pot
... conductivity, 21 8-19
uorites, 21 2-16, 21 7 -20
grain size and grain boundary thickness,
22 0 -21 , 22 2 -23
perovskite, 21 6
reactions between, 21 7-19
requirements and materials, 21 0- 12
size effect ... 63, 21 2-
13, 21 4f, 21 7 -20
Zoning, gasier, 28
Zr705 C-ring specimen, 109, 111f
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326 Materials for the Hydrogen Economy...
Materials for the Hydrogen Economy (2007) Episode 1 ppsx
... endorsement.
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2 Materials for the Hydrogen Economy
power industries were rst developed and put into commercial service in the 1950s ... Syngas for Chemical Processing 22
1.11 Materials of Construction 23
1.11.1 Liners for Gas or Liquid Feedstock 25
1.11 .2 Liners for Solid Feedstock 27
1. 12...
Materials for the Hydrogen Economy (2007) Episode 3 pdf
... (see gure 2. 1) are:
Anode: 2 OH
–
→ 1 /2 O
2
+ H
2
O + 2 e
–
(2. 1)
Cathode: 2 H
2
O + 2 e
–
→ H
2
+ 2 OH
–
(2. 2)
For alkaline electrolysis, OH
–
ions must be able to move through the membrane ... the Hydrogen Economy
The electrolysis reaction can be expressed as:
H O e H O
2 2
2+ → +
− =
Cathode reaction (3.1)
O O e
= −
→ +
1
2
2
2
Ano...
Materials for the Hydrogen Economy (2007) Episode 4 pdf
... O
2
(g)
H
2
O(g)
from Section 2
H
2
O(g)
from Section 3
SO
2
(g)
O
2
(g)
H
2
O(g)
feed
H
2
SO
4
to Section 2
SO
2
Stripping
SO
2
, HI
x
HI
x
(HI, H
2
O, I
2
)
to Section 3
I
2
from
Section 3
H
2
O ... Extraction
O
2
Separation
Bunsen Reactor
SO
2
(g), O
2
(g)
H
2
O(g)
from Section 2
H
2
O(g)
from Section 3
SO
2
(g)
O
2
(g)
H
2
O(g)
feed
H
2...
Materials for the Hydrogen Economy (2007) Episode 5 potx
... Introduction 123
5 .2 Description of the Process 124
5 .2. 1 Oxygen-Tolerant Hydrogenase Systems 126
5 .2. 2 Anaerobic Hydrogenase Systems 127
5.3 Reactor Materials 129
5.3.1 Photobioreactors 130
5.3 .2 Photobioreactor ... I
2
.
Feed H
2
O Concentration (wt%)
20 22 24 26 28 30
10
4
1000
100
10
10
4
1000
100
10
Flux (g/m
2
h)
Separation Factor
FIGURE 4 .22 Naon-117® perf...
Materials for the Hydrogen Economy (2007) Episode 6 doc
... H2S/19 .2% H2/balance He 25 0 ppm H2S/balance H2 and UHP He
97 ppm H2S/19.4% H2/balance He 500 ppm H2S/balance H2 and UHP He
400 ppm H2S/79.8% H2/balance He 500 ppm H2S/balance H2 and UHP He
29 22 ... 10
-6
2 10
-6
0 20 40 60 80 100 120 140
19.4% H
2
, 97 ppm H
2
S
79.8% H
2
, 400 ppm H
2
S
19 .2% H
2
, 29 22 ppm H
2
S
Flux [cm
3
(STP)/cm
2
-min]
Time (h)
Flux (mol/cm
2...
Materials for the Hydrogen Economy (2007) Episode 7 potx
... must
be understood for any new steels used for hydrogen gas pipelines.
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168 Materials for the Hydrogen Economy
The effect of various ... in hydrogen gas service.
5
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184 Materials for the Hydrogen Economy
As noted, the majority of research into hydro...
Materials for the Hydrogen Economy (2007) Episode 9 pot
... Ionics, 20 00, 129 , 63–94.
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22 0 Materials for the Hydrogen Economy
This scale effect indicates that the electrical conductivity is nearly constant for the
lms ... on the air side
of the air–(H
2
+ 3% H
2
O) exposure.
64
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22 4 Materials for the Hydrogen Economy
in an oxidizing...
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