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Preparation method of high-purity hydrogen
The invention discloses a preparation method of high-purity hydrogen, and belongs to the technical field of hydrogen preparation, and the preparation method comprises the following steps: preparing a ceramic membrane reactor which comprises a catalytic reaction layer, an anode, a ceramic membrane and a cathode which are connected in sequence; low-concentration coal bed gas is prepared, the low-concentration coal bed gas comprises methane, oxygen and nitrogen, the volume concentration of the methane is 5-30%, and the volume concentration ratio of the methane to the oxygen is larger than 2; the anode and the catalyst layer are reduced, low-concentration coal bed gas and dry nitrogen are introduced into the catalytic reaction layer and the cathode respectively, and high-purity hydrogen is generated at the temperature of 650-750 DEG C in an external voltage mode. Low-concentration coal bed gas is used as fuel, synthesis gas is dissociated into protons through external voltage, the protons are transmitted to a cathode through a ceramic membrane, hydrogen is generated under the action of a catalyst after the protons are transmitted to the cathode, original nitrogen is discharged through the generated hydrogen, and therefore high-purity hydrogen is prepared.
本发明公开了一种高纯氢气的制备方法，属于氢气制备技术领域，包括以下步骤：制备陶瓷膜反应器，所述的陶瓷膜反应器包括依次连接的催化反应层、阳极、陶瓷膜、阴极；配制低浓度煤层气，所述低浓度煤层气包括甲烷、氧气、氮气，其中，甲烷的体积浓度为5～30％，且甲烷与氧气的体积浓度比大于2；将阳极和催化剂层还原，分别将低浓度煤层气、干燥氮气通入催化反应层、阴极，在650～750℃，通过外加电压的方式，生成高纯氢气。通过以低浓度煤层气为燃料，再通过外加电压将合成气解离为质子，并通过陶瓷膜向阴极传输，质子传输到阴极后，在催化剂的作用下生成氢气，生成的氢气将原有的氮气排出，从而制备得到高纯度的氢气。
Preparation method of high-purity hydrogen
The invention discloses a preparation method of high-purity hydrogen, and belongs to the technical field of hydrogen preparation, and the preparation method comprises the following steps: preparing a ceramic membrane reactor which comprises a catalytic reaction layer, an anode, a ceramic membrane and a cathode which are connected in sequence; low-concentration coal bed gas is prepared, the low-concentration coal bed gas comprises methane, oxygen and nitrogen, the volume concentration of the methane is 5-30%, and the volume concentration ratio of the methane to the oxygen is larger than 2; the anode and the catalyst layer are reduced, low-concentration coal bed gas and dry nitrogen are introduced into the catalytic reaction layer and the cathode respectively, and high-purity hydrogen is generated at the temperature of 650-750 DEG C in an external voltage mode. Low-concentration coal bed gas is used as fuel, synthesis gas is dissociated into protons through external voltage, the protons are transmitted to a cathode through a ceramic membrane, hydrogen is generated under the action of a catalyst after the protons are transmitted to the cathode, original nitrogen is discharged through the generated hydrogen, and therefore high-purity hydrogen is prepared.
本发明公开了一种高纯氢气的制备方法，属于氢气制备技术领域，包括以下步骤：制备陶瓷膜反应器，所述的陶瓷膜反应器包括依次连接的催化反应层、阳极、陶瓷膜、阴极；配制低浓度煤层气，所述低浓度煤层气包括甲烷、氧气、氮气，其中，甲烷的体积浓度为5～30％，且甲烷与氧气的体积浓度比大于2；将阳极和催化剂层还原，分别将低浓度煤层气、干燥氮气通入催化反应层、阴极，在650～750℃，通过外加电压的方式，生成高纯氢气。通过以低浓度煤层气为燃料，再通过外加电压将合成气解离为质子，并通过陶瓷膜向阴极传输，质子传输到阴极后，在催化剂的作用下生成氢气，生成的氢气将原有的氮气排出，从而制备得到高纯度的氢气。
Preparation method of high-purity hydrogen
一种高纯氢气的制备方法
LI MINGFEI (author) / HOU LONGTONG (author) / LI SHUJUN (author) / CHEN ZHENGPENG (author) / DONG JIANGBO (author) / RAO MUMIN (author) / CHEN CHUANGTING (author) / LING YIHAN (author)
2022-11-01
Patent
Electronic Resource
Chinese
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