Method and apparatus for supplying hydrogen and portable cassette for supplying hydrogen
A technology for supplying devices and manufacturing devices, which is applied in the field of hydrogen production and can solve problems such as inability to use and high hydrogen pressure
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Embodiment 1
[0068] The reaction system used in the examples is schematically shown in figure 1 . In the methane decomposition device of this embodiment, two reactors (hydrogen production device, tank) 4, 2 are connected to each other in a closed state by glass tubes 3, 9, and are installed in the system downstream of the reactor (tank) 2 The cold trap device 12 (the temperature of dry ice) and the gas circulation pump 8 constitute a gas circulation system connected and closed by glass tubes 3a, 3b, 9a, 9b.
[0069] As the methane decomposition catalyst 7 in the reactor (hydrogen production device) 4, a nickel catalyst supported on fine powder silica (fumed silica of CABOT: Cab-O-Sil [trademark]) was used. 0.1 g of this catalyst (Ni: 10 wt %) was placed in the reactor 4, and heated at 450° C. with a heating furnace.
[0070] Diindium trioxide (Wako Pure Chemical Industries, Ltd.) was used as the reduced metal oxide 10 contained in the reactor (tank) 2 . 0.17 g of indium trioxide was add...
Embodiment 2
[0083] As the metal oxide 10, 0.1 g of ferric oxide (Wako Pure Chemical Industries, Ltd.) was used instead of 0.17 g of indium trioxide, and the same experiment as in Example 1 was carried out. Other conditions are completely identical with embodiment 1. what you get with figure 2 and image 3 The same result is shown in Figure 4 ,Figure 5.
[0084] Figure 4 It shows the state where iron oxide is reduced by hydrogen at 400°C and the reduced iron oxide decomposes water vapor. At the beginning of time (a), about 1000 μmol of hydrogen is introduced from the outside, and the reduction and reoxidation of ferric oxide are repeated in a closed state. like Figure 4 As shown, in Example 2 using iron oxide as the metal oxide, the amount of hydrogen generated by introducing water vapor from the first time (b) to time (c) at time (c) is approximately 700 μmol is slightly lower than the amount of hydrogen introduced at the time (a), but almost the same amount of hydrogen is prod...
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