Seeking advice on catalysts for dry gas hydrogen production
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What is the impact of oxygen present in the dry gas feedstock on hydrogenation, conversion, and medium-temperature catalysts? ? ? ?
The oxygen temperature rise will definitely be high, likely resulting in a low conversion rate of CO or methane.
Effect of oxygen in the feedstock: 1. Hydrogen sulfide and oxygen produce sulfur dioxide before the hydrogenation catalyst; the reverse reaction requires 370°C to produce hydrogen sulfide, which is then absorbed by zinc oxide. The temperature rise for a 2.1% oxygen reaction can reach up to 70°C. 3. The water generated will affect the desulfurization efficiency, resulting in more hydrogen sulfide escaping. In production, the oxygen content in the raw materials is required to be <1%. Hope this helps you; if you think it’s good, please give it a thumbs up. :handshake
It is stated that 1% O2 requires a temperature increase of 156°C, 1% CO requires an increase of 70°C, and 1% CO2 requires an increase of 60°C.