Analysis of the causes of coking in settlers
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In the settler, the rough rotation and single rotation are directly connected, but coking still occurs to a significant extent within the settler. What causes this, and how can it be avoided more effectively?
Conduct self-inspection in reference to Sinopec’s anti-coking technology guidelines
Increasing the anti-scorching steam pressure is the most direct approach.
Is the anti-coking steam supply at the top of the settler too low? Try increasing its amount.
By examining the operation of the riser, the residence time and the atomizing steam, along with the efficiency of the cyclone, it is possible to reduce the time during which oil and gas are exposed to high temperatures; this helps to control excessive coking. Additionally, by controlling the temperature at the outlet of the riser, coking can be reduced as well.
How is the definition of severe coking in this settler determined?