|
|
Lube and Wax IsoTherming®
Application: Process Dynamics' IsoTherming® hydrotreating process provides refiners with a cost-effective approach to lube and wax hydrotreating to produce high-quality lube-base stocks and food-grade waxes.
Products: High-quality lube oils, food- or pharmaceutical-grade oil and wax products.
Description: This process uses a novel approach to introduce hydrogen into the reactor; it enables much higher LHSV than conventional hydrotreating reactors. Process Dynamics' IsoTherming® hydrotreating process removes the hydrogen mass transfer limitation and operates in a kinetically limited mode since hydrogen is delivered to the reactor in the liquid phase as soluble hydrogen.
The technology can be installed as a simple pre-treat unit ahead of an existing hydrotreater reactor or a new stand-alone process unit. Fresh feed is combined with reactor effluent and liquid recycle, and fed to the IsoTherming® reactor. Hydrogen is added in the first IsoTherming® bed and the liquid feed with soluble hydrogen are reacted over the catalyst where partial desulfurization, denitrogenation, and saturation occurs.
The liquid is collected at the outlet of the first bed and combined with additional hydrogen and fed to a second IsoTherming® bed where further desulfurization, denitrogenation, and saturation take place. Treated oil is recycled to the inlet of the IsoTherming® reactor. The recycle stream delivers more hydrogen to the reactors and also provides a heat sink; thus, nearly isothermal operation is achieved. |
 |
|
