Liquid - Liquid Extraction

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	Liquid-Liquid Extraction

Liquid-Liquid Extraction

Koch-Glitsch announces new LUBEMAX™ tray technology for Lube Oil extraction processes.

To complement Koch-Glitsch’s ROSEMAX™ internals for use with Kellogg Brown & Root’s ROSE™ (Residuum Oil Supercritical Extraction) Process, Koch-Glitsch is please to announce our newest tray development: LUBEMAX™ trays.

LUBEMAX™ tray technology was first developed for use in the ROSE™ Solvent Deasphalting unit which rejects asphaltene from a vacuum residue using a supercritical light hydrocarbon solvent.

LUBEMAX™ tray technology is also ideally suited to application in Lube Oil aromatics extraction units which remove aromatics from lube oils using solvents such as n-methyl-pyrolidone or furfural.

LUBEMAX™ tray technology offers improved mass transfer performance, higher capacity, reduced plugging tendency in dirty service and increased operating reliability and flexibility. LUBEMAX™ is seen as the tray technology of choice when retrofitting refinery Rotating Disc Contactors (RDC’s).

Equipment | References | Case Studies | Technical Papers | FAQ

Koch-Glitsch Equipment
Koch-Glitsch has extensive references for using random and structured packings and trays in a wide variety of liquid extraction applications, and especially in LPG/Amine contactors.

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References
For more details regarding our reference list, or to see if Koch-Glitsch has already experienced your specific application please Contact Us

Koch-Glitsch has extensive technical know-how and experience utilizing SMVP™ extraction packing in LPG-Amine systems. Below is a list of SMVP™ packing installations for this application.

Application	Column Diameter (ft)	Packing Height (ft)
Removing H2S from LPG with MDEA	7.5	38.4
Removing H2S from LPG with MDEA	4.0	32.0
Removing H2S from LPG with DEA	2.5	12.8
Removing H2S from LPG with MDEA	3.5	27.2
Removing H2S from LPG with MDEA	5.5	10.2
Removing H2S from LPG with DEA	3.5	37.0
Removing CO2 from Ethane-Propane Mix with MDEA	7.5	20.0
Removing CO2 from LPG with DEA	5.0	18.5
Removing CO2 from LPG with DEA	4.7	25.0
Removing H2S from LPG with DEA (refinery FCC)	3.5	26.0
Removing CO2 from LPG with DEA	5.0	24.0
Removing CO2 from LPG with DEA	5.0	16.0
Removing CO2 from LPG with MDEA	6.0	30.0
Removing CO2 from LPG with DEA	5.5	25.0
Removing CO2 from LPG with DEA	4.0	18.5
Removing CO2 from LPG with DEA	5.5	29.5

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Case Studies
Efficiency Increase for H2S Extraction with SMVP™ Extraction Packing - Project Report 270

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Technical Papers
Amine Contacting with Liquid Hydrocarbons
Request This Technical Article

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FAQ

Q:How do I know which is my dispersed phase?
A: In an existing tower look at where the interface level controller is located. If this is at the top of the column then the light phase is dispersed and the heavy phase is continuous. If the interface is at the bottom then the heavy phase is dispersed and the light phase continuous.

If you are looking at a new application it may not be obvious which phase should be dispersed – generally the dispersed phase should not wet the packing material, should be the phase with the higher volumetric flow rate and preferred mass transfer direction is from the continuous phase to the dispersed phase. Often these guidelines will contradict one another – for any new extraction application pilot testing is advisable to confirm the chosen design.

Q:Which phase should be dispersed in a packed amine contactor?
A:Usually the best efficiency will be obtained if the phase which does not preferentially wet the surface of the packing is dispersed. Also if the phase with the higher volumetric flow rate is dispersed the efficiency will generally be better. Assuming metal packing is used, the hydrocarbon phase should normally be dispersed if maximum extraction efficiency is desired.

One exception to the above is if the level of treating required is less critical and the tower capacity is more important. In this case if the amine is dispersed the hydrocarbon throughput can be maximized.

Koch-Glitsch has considerable experience in designing towers to operate with either phase dispersed – please contact us to discuss your specific requirement.

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