Delayed coking filters remove coke fines and solid contaminants from the process feed.
The key benefit of delayed coking is full conversion of heavy residual oils, such as vacuum resid, to lighter products. This allows refiners to increase profit margins by processing lower-cost, heavier crude slates. Light products from the delayed coker are further treated in other process units to produce transportation fuels, such as gasoline and diesel.
High velocities are maintained in the furnaces in order to prevent significant coke formation. The reactions continue as the process stream moves to the coke drums. The coking reaction rate drops dramatically as coke-drum temperature decreases and coke is deposited in the
drums to be collected and sold.
The vapor is routed to the fractionator, where it is condensed and fractionated into product streams – typically fuel gas, LPG, naphtha, distillate, and gas oil. Solid and liquid contaminants enter the fractionated products as coke fines and injected steam. The removal of both particulates and water is required to meet final product specifications and feedstock requirements.
High solids loading including semi solids makes this a challenging application. The contaminants need to be removed to protect downstream catalyst beds and process equipment such as heat exchangers and feed furnaces.
|Filter Solution||Filter Purpose||Filter Benefit|
|01 – 03*||Backwashable ProGuard Series filter systems or Replaceable LiquiPleat HF Series.||Removal of coke fines and solid contaminants.||Protect liquid coalescers and downstream equipment. Maintain final product and feedstock specifications.|
|04 – 06||Phase-LOK™ or Phase-PUR™ Series Liquid/Liquid Coalescers.||Removal of liquid contaminates from the final product.||Protection of downstream equipment. Maintain final product and feedstock specifications.|
|07||Micro-LOK™ or Micro-DEP™ Series Gas/Liquid Coalescers.||Removal of liquid and solid contaminants from fuel gas.||Improved burner efficiency, longer service life, and reduced maintenance costs.|
Jonell Systems has a wide range of solutions for filtration in Delayed coking. These include:
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