Questions regarding methanol-to-hydrogen technology
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For hydrogen production from methanol, why is it necessary to analyze the chlorine content, total iron, pH, and conductivity of deionized water? Those who are familiar with this topic, please provide some guidance
First, chlorine is a poison for catalysts used in the production of hydrogen from methanol, as it deactivates these catalysts. Additionally, metal particles can adsorb onto the surface of the catalysts, blocking them and reducing their pore volume, thereby lowering their activity. Conductivity is also used to measure the ion content; a high level of conductivity indicates a higher ion content, and both of these factors are detrimental to catalysts
In fact, the principle is the same: copper-based catalysts are used for hydrogen production via methanol cracking, and they are extremely sensitive to chlorine, sulfur, and other substances, as these ions can deactivate the copper-based catalysts. PH, conductivity, etc., all mean the same thing. Total iron has not been encountered yet; perhaps iron ions can damage the catalyst.