Materials for the Hydrogen Economy (2009) Part 2 potx

... adsorption 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...

Ngày tải lên: 12/08/2014, 03:20

... UHP He 29 22 ppm H2S/19 .2% H2/balance He 1.5% H2S/balance H2 and UHP He 5 024 .indb 150 11/18/07 5: 52: 09 PM 126 Materials for the Hydrogen Economy 5 .2. 1 OxyGen-tOlerant hydrOGenaSe SyStemS The development ... 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...

Ngày tải lên: 12/08/2014, 03:20

... Germany, 19 92, pp. 914– 923 . 5 024 .indb 178 11/18/07 5: 52: 56 PM 1 82 Materials for the Hydrogen Economy The product of D and K is referred to as Φ, the permeation coefcient or permeabil- ity of the material. ... constant stress intensity factor range (∆K) for a low-alloy steel in hydrogen gas. 35 5 024 .indb 168 11/18/07 5: 52: 42 PM 1 72 Materials for the...

Ngày tải lên: 12/08/2014, 03:20

... wt% 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 )2 8.4 wt% H2 — 5 024 .indb 20 0 11/18/07 5:53 :20 PM Reversible ... ZrO 2 . 31 5 024 .indb 21 3 11/18/07 5:53: 32 PM 1 92 Materials for the Hydrogen Economy weight and volume density, and (2) there are some fundamental material p...

Ngày tải lên: 12/08/2014, 03:20

... FRR(10–8/g·h·cm2) Degradation Rate(V/h) 40 1,000 4.89 40 60 1 ,20 0 3.54 17 80 1,050 3. 52 20 100 1,300 2. 85 3 120 1,050 2. 67 1 5 024 .indb 27 8 11/18/07 5:54:59 PM 28 4 Materials for the Hydrogen Economy 12. 3.3 .2. 5 ... high loading Pt nanoparticles on sonochemically-treated carbon nanotubes, J. Phys. Chem. B, 108, 1 925 5, 20 04. 5 024 .indb 3 02 11/18/07 5:55 :2...

Ngày tải lên: 12/08/2014, 03:20

... 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

... 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 Naon-117® perf...

Ngày tải lên: 13/08/2014, 16:21

... must be understood for any new steels used for hydrogen gas pipelines. 5 024 .indb 173 11/18/07 5: 52: 49 PM 5 024 .indb 180 11/18/07 5: 52: 57 PM 168 Materials for the Hydrogen Economy The effect of various ... in hydrogen gas service. 5 5 024 .indb 161 11/18/07 5: 52: 24 PM 184 Materials for the Hydrogen Economy As noted, the majority of research into hydro...

Ngày tải lên: 13/08/2014, 16:21

... range of 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 general, the higher the hydrocarbon ... natural gas, which is preheated before entry in the gasier. Gasication 5 024 .indb 21 11/18/07 5:44:38 PM 16 Materials for the Hydrogen Economy 1.9 GAS...

Ngày tải lên: 14/03/2014, 16:20