Atmospheric residue filter plugging
Atmospheric residue filter plugging
(OP)
In our ARDS unit, we encounter atmospheric residue filter(removing 25 micron particle) plugging problem for a long time.
The mesh size of suction strainer of the AR pump in CDU is 20. We wander if the opening the strainer is too large to remove the fine particle.
The ARDS filter plugging problem worsen during crude switch.
We guess some particle is carried with the crude oil entering the CDU, the particle then concentrate in the AR.
Who has the same experience with us?
How to solve the problem?
The mesh size of suction strainer of the AR pump in CDU is 20. We wander if the opening the strainer is too large to remove the fine particle.
The ARDS filter plugging problem worsen during crude switch.
We guess some particle is carried with the crude oil entering the CDU, the particle then concentrate in the AR.
Who has the same experience with us?
How to solve the problem?





RE: Atmospheric residue filter plugging
RE: Atmospheric residue filter plugging
RE: Atmospheric residue filter plugging
We have two stages desalter in CDU,
but no desalter in ARDS.
We have bag filter with 20 mesh in CDU
crude feed.
We have automatic backwash filter which
can remove 20 micron particle in ARDS.
RE: Atmospheric residue filter plugging
Anyhow, it wouldn't harm to contact Howe Baker e-mail: dking@chicagobridge.com
for electrostatic desalting, or Alfa Laval for decanter centrifuges.
The fact the AR filters plug up, indicates that the screen size is sufficiently small. Of course, it doesn't preclude smaller particles to pass through.
Is it possible you ask the supplier of the crude to take better care of his lot dispatches. Origin of sediment can be at the well by the use of drilling fluids (sand, clay, silt, shale or rock particles), or by picking up scale in transportation.
In the meantime try to use (install) a higher outlet nozzle in the crude feed tank, may be you can avoid a quick plug up of the filters.
RE: Atmospheric residue filter plugging
RE: Atmospheric residue filter plugging
Just a thought!
RE: Atmospheric residue filter plugging