CLG's ISODEWAXING technology
revolutionized catalytic dewaxing when it was
commercialized in 1993. Rather than removing the wax, as does solvent dewaxing,
ISODEWAXING catalytically isomerizes the molecular structure of the wax into
isoparaffins. These isoparaffins have high VI,
low pour points, and excellent
resistance to oxidation. Further, because ISODEWAXING preserves the base oil's
paraffinicity, it can produce higher product VI
and/or higher yields than other dewaxing processes.
When using ISODEWAXING, a broader range of feeds can be processed into a broader
range of products. ISODEWAXING can process feeds with close to 100% wax, such
as slack wax, and hard wax. It is a once-through process where 140
VI base oils
can be made from slack wax without recycling unconverted wax. Refiners using
ISODEWAXING can produce base oils with VI
ranging from 95 to 140 and higher.
Pour points may range from low ( -9 to -15°C) to ultra-low ( < -40°C).
| Catalytic dewaxing |
BPD 10,000 |
52 |
BPD 5200 |
81 |
4200 |
| Solvent dewaxing |
BPD 10,000 |
63 |
BPD 6300 |
84 |
5300 |
| ISO-DEWAXING |
BPD 10,000 |
75 |
BPD 7500 |
94 |
7050 |
| Using all-new ISODEWAXING® Catalyst to make conventional base oils allows the refiner to lower processing severity in the hydrocracker and substantially increase yields. |