First startup of the catalytic cracking unit
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During the first wash with water as a washing medium, how much water can be filled in the distillation tower, and is there a high risk of filling it to capacity? During the initial water washing of the diesel stripping tower, is it necessary to wash the gas counter-current line as well?
Why fill it up? Worried that the upper vapor phase line cannot be flushed? For top reflux, isn’t it possible to fill water in the middle section and inject it into the tower?
Don’t do anything risky. Catalytic fractional distillation is used in conjunction with water processing; in the normal operation sequence, only the diesel process cannot be integrated with this system, but water can be drawn from the intermediate stage and sent to the diesel pump.
Water intermodal transport should also be part of the normal process, right?
The last edit to this post was made by Erquan on 2023-1-12 at 15:40. When conducting sedimentation tests on a distillation tower before delivery, it needs to be filled with water; during subsequent cleaning, it is sufficient to ensure that each side line can be flushed in a circular manner. Distillation towers equipped with an oil collection tank are relatively straightforward to handle – water simply needs to be injected from the top, and after the inlets of each side line pump have been cleaned, the pumps can be used to flush the main pipelines as well as the branch lines. Rush upward and downward to flush each side line
Pressure testing with water filling and foundation settlement are all tasks carried out by the construction party, and they are not part of the project commencement scope