Lubricant dewaxing (MWI™ technology)
Key benefits
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- High-quality product with high VI
- Ultra-low pour capability
- Haze-free” product
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- Easily retrofitted into existing hydrotreating units
- Robust catalyst with nitrogen and sulfur tolerance
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- Increased yield
- High selectivity
MWI™ services include:
- Initial non-confidential consultations
- Development of licensing proposal
- Basic engineering package, including basic design specification and operating guide
- Engineering support during FEED and EPC stages
- Technology transfer, training, catalyst loading and startup support
- Performance estimates for catalyst refills
Group III+ production
Valuable flexibility
MWI dewaxing process
Wax is liquified and preheated to reactor temperature and fed to a proprietary fixed bed reactor containing an advanced proprietary selective zeolite catalyst. Paraffinic molecules in the waxy feed are selectively isomerized by this catalyst to branched, lower pour point lube molecules with minimal conversion to high-quality diesel. For some feeds (high oil-in-wax slack waxes, for example) an initial hydrotreating step may be required.
Featured resources
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Lubricant base stock dewaxing – MSDW™ catalyst – fact sheet
Learn how MSDW™ selective dewaxing technology delivers outstanding activity, yield, selectivity, run length and durability, improving base stock cold-flow properties and converting wax to high VI lubricant.
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Lube base stock hydrofinishing – MAXSAT™ catalyst – fact sheet
Learn how MAXSAT™ proprietary, state-of-the-art aromatic saturation catalyst can be used with lubes or fuels hydrocrackers or as a hydrofinishing step with hydrodewaxing technologies.
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A Particle of Difference
How ExxonMobil Catalysts and Technology Licensing solves shared challenges through expertise, specialty catalysts, technology licensing and collaboration.
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ExxonMobil Catalysts and Technology Licensing – summary of technologies offered
Learn about the cutting-edge, proprietary catalysts and advantaged process technologies that ExxonMobil provides for refining, gas and chemical needs.