The impact of hydrogenation feedstocks on the production process
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Dear teachers: I would like to ask what the typical requirement is for the silicon content in hydrogenation feedstocks, and what effects an excessive level of silicon can have. The silicon content in our company’s feedstocks is around 50–110; will this affect the color of the refined gasoline produced in the early stages?
If the raw material contains silicon, care must be taken, as silicon will deposit on the surface of the hydrogenation catalyst, covering the active metal surface of the catalyst and blocking its pores. This leads to a significant loss in the catalyst’s pore volume and specific surface area, resulting in a decrease in its activity. Moreover, a catalyst that has been poisoned by silicon cannot be regenerated. In general, the lower the silicon content in the raw materials, the better. It has little impact at the beginning of operation, but it becomes more significant later on.
The silicon content in the raw materials must be strictly controlled