Technology Type
- Type
- Fuels Caustic Processes
- Process
- Fuel Processes
- Abbreviation
-
Caustic treatment is used to upgrade a wide range of Liquid Fractions from LPG to Diesel Fuels and Heating Oils. As the Caustic Solution (and often a Catalyst) mixes with the Hydrocarbon Feed it either extracts or sweetens Mercaptans, depending on the Process used.
However, the combination of the Hydrocarbon and Mercaptan Rich Caustic also forms a very stable Emulsion that is difficult to Separate, causing significant quantities of Caustic Carryover in the Product. This results in off-specification Products due to haze or elevated sodium concentration and loss of Caustic. In many cases the entrained Caustic is fed to Processes where Sodium is a Poison to the Catalyst.
Because the Emulsion is so stable, Knock-Out Drums, Sand Filters and Packed Vessels are not able to efficiently separate the Caustic Emulsion from the Hydrocarbon Streams. High efficiency Phase Separators such as Liquid/Liquid Coalescers reliably meet ‘clear and bright’ Product specification and Sodium levels downstream. Filter Elements are employed to reduce suspended Solids to improve the efficiency and life of the Liquid/Liquid Coalescer.
Example of Fuels Caustic Processes are:
- UOP Merox™ Process
- Merichem Napfining™ Process
- Merichem Mericat Processes
- Link
System Info
- Updated by
-  Kokel, Nicolas
- Updated
- 11/28/2022 11:56 AM
- Added
- 11/27/2022 6:35 PM
Title | Date |
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  Image
Technology | Owner | |
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Honeywell UOP | ||
Merichem | ||
Merichem | ||
Merichem | ||
Merichem |