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مجلة النفط والتعاون العربي
161
العدد
- 2017
أربعون
المجلد الثالث و ال
2016
أوابك العلمية لعام
�
ص لبحوث العلمية الفائزة بجائزة
�
عدد خا
72
62
approximate, repeat approximate, idea of what is the position in the rest of the
world.
Table (10)
World Lube Oils Disposition
–
2009
–
Million tons
Consumption
32.3
Generated Used Oil
22.4
Collected Used Oil
16.5
Burned for Energy Recovery
12.9
Re-refined
2.6
Disposed
6.9
Source: (3) based on Kline Report 2009 and author’s
adjustment for disposed used oil
Table (11)
Approximate Utilization and Disposal Of Used Oils
–
million tons/y
EU 2008
US
1995
Others World
2009
Burning
1.1
2.61
9.19
12.9
Re-refining
0.7
0.53
1.37
2.6
Others
0.1
0
0.1
0.1
Disposed
0.9
1.4
4.6
6.9
Source: Authors adaptation based on previous Tables and disposed definition. Based
on 32.3 million ton/y demand.
Here again the burning for energy is much more prominent than re-refining and
that greater effort must be made to reduce disposal into the environment the world
over. It is to be noted that some sources
4
believe world lube oils demand is now
over 40 million tons a year and therefore the disposed oil must be much higher
by now. Even if the re-refining capacity of the US is adjusted as discussed earlier,
the picture does not change much and burning used oil remains prominent.
However, there are secondary uses for used lube oils that are too fragmented to
account for but may not be environmentally sound. For example, in Russia
52
, out
of 1.1 million tons a year of generated used oil only 0.055 is re-refined, 0.11 is
burned for energy and 0.935 is disposed of into the environment. But the same
source suggests that
“25 percent of Russia’s used lubes get filtered and then
reapplied as insulation or electric transformer oils or as coolants.”
No matter what, burning of used oil for energy recovery is to be treated seriously
and must be given consideration in any future study for re-refining.