Looking for the process flow and principle of FCC catalyst feeding system?
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Want to know the process flow and principles of FCC catalyst feeding system? And fresh catalyst, regenerated catalyst, etc., through what principle do they enter the system and how do they circulate. Thanks!
Generally, the catalytic device of a refinery has three catalyst tanks, a fresh agent tank, a spent agent tank, and a balancing agent tank. 1. When the device is started, use a large unloading agent line to load agents into the regenerator in reverse direction. At this time, a balancing agent is used. 2. Usually, a small feeder is used to fill the regenerator with fresh agent, which is fed by non-purified air in the device. The frequency and weight of the agent are mainly determined based on the total amount of catalyst stored in the two vessels. When the total storage volume in the two devices is large, the waste agent can be transferred into the waste agent tank through the unloading agent line. There is also a three-turn waste agent that can be transferred into the waste agent tank through a special waste agent line. 3. The regenerated catalyst flows into the riser reactor through the regeneration slide valve.