Questions regarding the unit’s hydrogenation reactor
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Dear experts, during the commissioning of a natural gas-based hydrogen production plant, once the desulfurization system and the conversion system are combined into a single cycle, the hydrogenation reactor’s temperature rises. Once it reaches a certain temperature, it is necessary to isolate the reactor from the process in order to maintain its temperature and pressure. I’m not sure why this isolation is required
The hydrogenation catalyst must not exceed 230 degrees when exposed to hydrogen and in the absence of sulfur
When reduction is required for conversion, the hydrogenation reactor must be disconnected from the main loop; otherwise, the catalyst in its sulfided state will be reduced
Is the catalyst in the desulfurization reactor not vulnerable to reduction?
The zinc oxide desulfurization reactor is fine; it removes inorganic sulfur, and it has a capacity limit for sulfur removal. The hydrogenation reactor, on the other hand, removes organic sulfur, with hydrogenation occurring in a sulfided state to produce inorganic sulfur.