Black burning of reforming catalysts
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Why is nitrogen introduced from below for the black burning of the reforming catalyst, and where does the nitrogen go afterward?
Black burning means that the carbon content in the chlorination stage is relatively high, which can easily lead to excessive temperatures that overwhelm the equipment and the catalysts. What needs to be done is to prevent oxygen from entering the chlorination section, allowing air to enter directly. In the IPF process, nitrogen is recycled; I’m not sure about UOP’s approach
Black burning means that the carbon content in the chlorination stage is relatively high, which can easily lead to excessive temperatures that overwhelm the equipment and the catalysts. What needs to be done is to prevent oxygen from entering the chlorination section, allowing air to enter directly. IPF nitrogen is recycled; it’s unknown for UOP
Prevent combustion in the chlorination stage; only when the carbon content is below 0.2% can it be introduced into the air