Pre-vulcanization, passivation, heat immersion, thermal activation, gas sulfur blowing
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What do pre-vulcanization, passivation, heat immersion, thermal activation, and gas sulfur blowing mean?
pre-vulcanization； The hydrogenation catalyst is transformed from an oxidized state to a highly reactive sulfided state. passivation ； The hydrogenation catalyst is transformed from a sulfurized state with high reactivity to an oxidized state. Heat immersion ； Removal of sulfur accumulation in the converter ； Gas desulfurization ； Sulfur shutdown: purging and sulfur removal of the entire sulfur system.