Materials for the Hydrogen Economy (2009) Part 6 pdf

... PM 1 26 Materials for the Hydrogen Economy 5.2.1 OxyGen-tOlerant hydrOGenaSe SyStemS The development of an O 2 -tolerant hydrogenase (by either mutagenesis of existing hydrogenases or transforming ... PM 130 Materials for the Hydrogen Economy 2004 and 2005 the U.S. Department of Energy started a small project at the National Renewable Energy Laboratory (NREL) to p...

Ngày tải lên: 12/08/2014, 03:20

... 11/18/07 5:44:07 PM Materials for the Hydrogen Economy 5024.indb 1 11/18/07 5:44:07 PM viii Materials for the Hydrogen Economy Chapter 9 Reversible Hydrides for On-Board Hydrogen Storage 191 G. ... 5024.indb 6 11/18/07 5:44:09 PM 5024.indb 2 11/18/07 5:44:07 PM xvi Materials for the Hydrogen Economy Co–polypyrrole–carbon. However, none of these have matche...

Ngày tải lên: 12/08/2014, 03:20

... from the base to the top of the gasier, with the hot ash at the base of the gasier preheating incoming steam and O 2 gases. The countercurrent gas ow of the syngas at the top of the gasier ... separating the steam reforming and cata - lytic partial oxidation reactions. In autothermal reforming, a catalyst controls the relative extent of the partial oxidation...

Ngày tải lên: 12/08/2014, 03:20

... factor range (∆K) in hydrogen gas for a carbon steel. 46 5024.indb 1 76 11/18/07 5:52:54 PM 168 Materials for the Hydrogen Economy The effect of various gas additives on hydrogen embrittlement ... in hydrogen gas vessels and pipe- lines can be employed for similar applications in the hydrogen energy infrastructure. • • • 5024.indb 164 11/18/07 5:52:35 PM 160...

Ngày tải lên: 12/08/2014, 03:20

... in capacity. The reversible hydrogen content for the LiBH 4 –MgH 2 couple was found to be in the range of 8 to 10 wt%, rather than 18.4 wt% for the formula value, or the 13 .6 wt% hydrogen released ... molecular hydrogen. Their work employs a combination of rst-principles theoretical modeling, thermodynamic 5024.indb 199 11/18/07 5:53:19 PM 1 96 Materials for t...

Ngày tải lên: 12/08/2014, 03:20

... is needed for practical fuel cell applications. 5024.indb 284 11/18/07 5:55: 06 PM 282 Materials for the Hydrogen Economy range (a critical requirement for automotive applications) and, for DMFC ... and they are not suitable for HT applications. 290 On the other hand, PBI graft- ing is an effective method for replacing the imidazole hydrogen with other functional...

Ngày tải lên: 12/08/2014, 03:20

... 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

... 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 efcient generation of ultra high purity (UHP) hydrogen. 5024.indb 61 11/18/07 5:45: 16 PM 58 Materials for t...

Ngày tải lên: 13/08/2014, 16:21

... limit. FIGURE 3.7 Performance stability of an electrolysis stack. 5024.indb 69 11/18/07 5:45:32 PM 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. 5024.indb 76 11/18/07 5:45:45 PM 70 Mat...

Ngày tải lên: 13/08/2014, 16:21

... 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 or...

Ngày tải lên: 14/03/2014, 16:20