|
 Refining
In oil refineries, Krebs Cyclones are used to remove coke fines from water in the delayed coking unit (DCU). The process of cooling and cutting coke from coke drums produces coke fines that are carried by the cooling / cutting water to a sluiceway or coke pit. The water may or may not pass through a settling maze before being returned to a water storage tank for re-use. Due to the techniques used to move the coke product away from the coke drums and inefficiencies in the settling maze, coke fines tend to accumulate in the water storage tank. When these fines are recirculated with the water they cause unnecessary wear on valves, piping, heat exchangers, high pressure jet pumps, and coke cutting nozzles. Installation of Krebs Cyclones to remove coke fines greatly reduces the maintenance requirements on the downstream equipment.
Krebs Cyclones can also be used to remove +20 micron catalyst fines from gas oil. This process usually involves the use of small diameter stainless steel or ceramic hydrocyclones installed in a close pack configuration in a pressure vessel.
|
 |
| |