This is how we handle overheating in the hydrogenation reactor of hydrogen production units

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We switched the feed gas used in our unit from coking dry gas to catalytic dry gas, which caused overheating in the hydrogenation reactor. At that time, we were operating under a modified circulation process; the catalytic dry gas had just been introduced, and we were about to increase its flow rate slightly. However, due to the high olefin content in the catalytic dry gas, coupled with the methanation reaction, the hydrogenation reactor overheated. At that time, we handled it as follows: we immediately stopped the feed, closed the valves of the medium-pressure reverse pressure compressor, switched to a desulfurization self-circulation system by injecting nitrogen at the compressor inlet to effect cooling, while keeping the conversion system in operation through the medium-pressure square flare I have a question now: the desulfurization system definitely contains some hydrogen, and with such high temperatures, could it be reduced by the hydrogen at those high temperatures if the feed is stopped? There must be some other more appropriate way to handle this!