Issues regarding the use of HDS catalysts for FCC gasoline selective hydrogenation
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How to prevent rapid coking of HDS catalysts used in FCC gasoline selective hydrogenation
1. Control the reaction temperature appropriately; while ensuring the quality of the product meets standards, use the lowest possible reaction temperature. 2. Use the largest possible hydrogen-to-oil ratio, as a higher ratio can delay catalyst coking. 3. Control the impurity content of the raw materials to prevent bed blockage. 4. The catalyst is filled in a graded manner. 5. Keep the content of dienes in catalytic gasoline as low as possible, or install a portion of protective catalyst above the main catalyst to saturate the dienes.
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