Sludge Reduction Systems (CRSRS)

Sludge Reduction Systems (CRSRS)

Contract Resources' Sludge Reduction Systems reduce the hazards associated with manual removal of tank sludge, and maximise the value of hydrocarbons recovered.

Contract Resources
Adelaide, Australia

The Contract Resources Sludge Reduction Systems (CRSRS) are based on the intense, controlled agitation and heating of a tank; bringing the hydrocarbon components of tank sludge back into suspension. This is done with a mixture of high performance Pumps, Boilers, Heat Exchanger (if necessary), and Mixing and Agitating Equipment with the ability to be directionally controlled.

Using boilers or heat exchangers allows Contract Resources to increase the internal temperature; encouraging the heavy hydrocarbon elements to dissolve back into the cutter.

The directionally controllable mixing nozzles use a Venturi action to increase the flow through the nozzle. It picks up 4-5 times the pumped volume, and each nozzle passes 1,150L/min at 4bar pressure; resulting in a flow through each nozzle of 4,600 to 5,700L/min. Using two nozzles per assembly equates to between 9 and 11 cubic metres a minute, per assembly. By using the directional control available in the units, and structuring the movement of each assembly to compliment the others we can ensure that we maximize the mixing of the tank.

As an example, in a 66 meter diameter Crude Tank, Contract Resources would use 5 assemblies, moving 6000 to 8000 cubic meters of cutter. This would result in the tank getting a complete turnover every 2 to 3 hours.

The CRSRS system results in the shortest possible duration for Tanks out of Service, and the least amount of personnel in confined space entries. Once restored, the resulting product can be returned to the refining process or put directly into Contract Resources’ Solid Liquid Treatment (SLT) units.

See more on Contract Resources' Solid Liquid Treatment (SLT) units.

[January 2010]