How is the start-up load of your delayed coking unit determined?
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How is the start-up load of your delayed coking unit determined? This post was last edited by along2006 on 2009-4-13 23:03 ]
The only difference is that the second furnace and four towers have parallel furnace operation, while the first two towers do not.
Design capacity/actual processing volume.
Actual processing volume/design capacity* 100%.
The second furnace with four towers and the third furnace with six towers have parallel furnace operation, but the first two towers do not. In addition, the load elasticity is greater when the cycle of the device is designed to be larger. Nowadays, most domestic coking plants are in full load or overload conditions.
We have one furnace and two towers, and the flow of the fractionating tower can be slightly adjusted in the circulation ratio. So the flexibility is slightly greater. The first furnace should be started at 80% to 100% of the designed volume.
The flexible cycle ratio of the process is 40%---120% of the design volume