127 / 222
120
2016
أوابك العلمية لعام
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ص لبحوث العلمية الفائزة بجائزة
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عدد خا
مجلة النفط والتعاون العربي
161
العدد
- 2017
أربعون
المجلد الثالث و ال
ii
Figure 29 Used oil disposal hierarchy ..................................................................................53
Figure 30 Operating costs for different re-refining technologies .......................................56
Figure 31 Capital costs versus capacity for a grassroots re-refinery.................................57
Figure 32 IRR at various feedstock and base oil prices (Base: 40000 metric tons re-
refinery)...................................................................................................................................58
Figure 33 IRR at various feedstock prices and operating capacities at constant base oil
price (US$ 1138 per metric ton).............................................................................................58
Figure 34 Group I base oil market share evolution over the years ....................................65
List of Tables
Table 1 Re-refining installed capacities in Arab countries ...................................................9
Table 2 Used lubricating oil management in selected Arab countries ..............................10
Table 3 Applied technologies and their corresponding unit operations...........................46
Table 4 Advantages and disadvantages of re-refining technologies .................................48
Table 5 Process figures of the STP project............................................................................61
Table 6 Evaluation of STP project process economics.........................................................63