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البحـث الثاني
143
2016
أوابك العلمية لعام
�
ص لبحوث العلمية الفائزة بجائزة
�
عدد خا
مجلة النفط والتعاون العربي
161
العدد
- 2017
أربعون
المجلد الثالث و ال
Re-refining of Used Lubricating Oil and its Economic and Environmental Implications
20
4.2
KTI process
4.2.1 Process description
The KTI (Kinetics Technology International) also known as KTI relube is constituted of
the following sequences:
Atmospheric distillation:
In this step, Water and light hydrocarbons are removed.
Vacuum distillation:
Thin film vacuum distillation to produce the lube fraction
Hydrogenation:
The distilled fraction is hydrogenated in order to eliminate contaminants and additives
Fractionation:
The hydrogenated fraction is fractionated into light and heavy oil.
Figure 9 shows a simplified flowsheet of the KTI re-refining process.
Figure 9 KTI simplified process flow diagram
Source: Audibert as cited UNEP(2012)
Fuel gas
Light oil
Heavy oil
Residue
Settling
Vessel
Water and
Light HC
Used oil
PreFlash
Thin Film
Evaporat
or
Diesel oil
Predistillation
¡Hydrofinishing
Separator
Diesel oil
H2