Materials for the Hydrogen Economy (2007) Episode 12 pot

... 11/18/07 5:44:14 PM xiv Materials for the Hydrogen Economy Materials issues surround the kinetics of the electrode processes and durability of the interconnect materials in the high-temperature, ... efforts have been made to publish reliable data and information, but the author and the publisher cannot assume responsibility for the validity of all materials o...

Ngày tải lên: 14/03/2014, 16:20

... introduced through a lockhopper at the top of the gasier, with oxygen and steam (H 2 O) introduced in the gasier base. Gas is pulled from the base to the top of the gasier, with the hot ash at the ... carbon feed passes through the gasier by gravity. In the top of the gasier, where the coal is preheated, moisture is driven off. Toward the base of the gas...

Ngày tải lên: 27/06/2014, 17:20

... of CO 2 or other gas impurities, and the water shift gas reaction (equation 1.4). C x H y + x /2 O 2 → xCO + y /2 H 2 5 024 .indb 8 11/18/07 5:44 :26 PM 12 Materials for the Hydrogen Economy Two ... (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 and +3...

Ngày tải lên: 12/08/2014, 03:20

... H has the potential to alter the performance of ferroelectric ceramics, and therefore 5024.indb 313 11/18/07 5:55:30 PM 316 Materials for the Hydrogen Economy The observation of bubbles in ... direct injectors, the actuator is embedded in the hydrogen gas, which has the potential to affect performance by the following processes: (1) change the capaci - tance of...

Ngày tải lên: 13/08/2014, 16:21

... Gasication 15 1. 9 Gasication for H 2 Production 16 1. 10 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 ... fIgure 1. 1 An air-cooled slagging gasication plant 5024.indb 2 11 /18 /07 5:44: 21 PM 5024.indb 24 11 /18 /07 5:44 :18 PM xxii Materials for the Hydrogen...

Ngày tải lên: 13/08/2014, 16:21

... according to the reaction CO + 2 H 2 → –[CH 2 ]– + H 2 O. Fischer–Tropsch 5 024 .indb 22 11/18/07 5:44:39 PM 8 Materials for the Hydrogen Economy hydrodesulfurization (see gure 1 .2) . When gasication ... (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...

Ngày tải lên: 13/08/2014, 16:21

... 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 Electrolysis 69 3. 5 Advanced ... Res., 33 , 33 3 35 9 (20 03) . 99. Kobayashi, T. et al., Study on current efciency of steam electrolysis using a partial protonic conductor SrZr 0.9 Yb 0.1 O 3- δ ,...

Ngày tải lên: 13/08/2014, 16:21

... process for hydrogen generation is supported by nuclear process heat and electricity, it has the potential to produce 50 24. indb 74 11/18/07 5 :45 :44 PM 92 Materials for the Hydrogen Economy Bunsen ... high-temperature materials and the focus on hydrogen technologies provide the basis for rapid progress in this area. 50 24. indb 76 11/18/07 5 :45 :45 PM 70 Ma...

Ngày tải lên: 13/08/2014, 16:21

... Naon-117đ performance using an HI/water/I 2 feed at 1 25 C. 50 24.indb 113 11/18/07 5: 51:11 PM 110 Materials for the Hydrogen Economy TABLE 4 .18 Materials Options for Section III: Hydrogen Iodide ... Screen - ing tests on materials of construction for the thermochemical IS process, Corrosion Engineering, 46, 141–149, 1997. 50 24.indb 119 11/18/07 5: 51: 35 PM...

Ngày tải lên: 13/08/2014, 16:21

... 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...

Ngày tải lên: 13/08/2014, 16:21

... 176 Acknowledgments 177 References 177 5024.indb 1 57 11/18/ 07 5:52:21 PM 172 Materials for the Hydrogen Economy sulfur, and phosphorus in a low-alloy steel. 40 Figure 7. 8 shows that K TH decreases ... be understood for any new steels used for hydrogen gas pipelines. 5024.indb 173 11/18/ 07 5:52:49 PM 5024.indb 180 11/18/ 07 5:52: 57 PM 168 Materials for...

Ngày tải lên: 13/08/2014, 16:21

... permeation barrier for MANET steel, Fusion Engineering and Design, 41, 149 (19 98) . 5024.indb 190 11/ 18/ 07 5:53:11 PM 188 Materials for the Hydrogen Economy 8. 5 SUMMARY The best hydrogen barrier ... between the host and dopant cation radii. The ionic radius for Zr 4+ is 0 .84 Å when the coordination number is 8; it is 0 .87 Å for Sc 3+ and 1.109 for Y...

Ngày tải lên: 13/08/2014, 16:21

... 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 cle...

Ngày tải lên: 13/08/2014, 16:21

... 11/18/07 5:54:25 PM 260 Materials for the Hydrogen Economy The generally accepted bifunctional mechanism for Pt/Ru-catalyzed CO oxi- dation involves the formation of either a Ru-activated H 2 O ... carbon black. It is clear that there is a growing effort in place to capitalize on the unique 5024.indb 272 11/18/07 5:54:53 PM 256 Materials for the Hydrogen Economy...

Ngày tải lên: 13/08/2014, 16:21