Experience in operating the catalyst external slurry filter
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Hello everyone. Does anyone among you have experience or insights regarding the operation of oil slurry filters used in coking units? Our workshop is considering installing such a filter, and we’re not sure what aspects need to be taken into account or whether its performance will meet the requirements
Why use a filter? Our slurry is directly discharged outside. The coking unit throws out slurry every time!
If this isn’t cleaned up in time, wires will form there; I guess it will also be necessary to blow out those wires. It’s quite troublesome.
If you want to produce needle coke, you can use a filter.
Has the slurry filtration technology been selected yet? Please share the details
At least there aren’t many companies in the country that use them effectively; it’s costly and requires a lot of labor! It is said that a set of filtration equipment from the United States is of good quality, but its price is too high. There is also no evidence of its effectiveness in domestic use, so it’s difficult to know exactly how well it performs
The original two units at Changling Refining & Chemical Plant were equipped with slurry filters; it’s not clear whether the new units still have them
They’re all designed to be included, and everything is presented in such an exaggerated manner that it seems impressive at first, but in the end it’s like trying to reach ears that are deaf. It’s actually something understood without being spoken out. :L
What can be done with the external discharge of slurry?
The slurry filter is highly automated, with two sets switching automatically; therefore, a stable and reliable operating program, along with accurate instrument measurements, are the most fundamental requirements for its proper operation. In addition, special care must be taken to ensure that reduced-pressure residue does not enter the slurry, as asphaltene molecules can clog the pores of the filters, rendering backwashing ineffective. After repeated flushing of the filter, when the differential pressure reaches the specified value, it requires treatment by a specialized manufacturer, which is very costly and seems not to be worth it. I’ve already ruined two sets of slurry filters, with no improvement at all. It’s not a matter of skill level; I won’t go into the details.