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Title Page
Contents
Nomenclature 9
1. Introduction 10
2. Experimental 16
2.1. Sample preparation and Experimental method 16
2.1.1. Polypropylene 16
2.1.2. Experimental method 16
2.2. Catalysts preparation 18
2.3. Space Velocity 18
2.4. Characterization of catalysts 20
2.4.1. Brunaure-Emmett-Teller (BET) surface area 20
2.4.2. X-ray Diffractometer (XRD) 20
2.4.3. H₂-Temperature programmed reduction (H₂-TPR) 21
2.5. Gas Chromatography/Mass Spectrometry (GC/MS) 21
3. Results and discussion 22
3.1. TGA analysis of PP 22
3.2. Characterization of catalysts 27
3.2.1. BET surface area analysis 27
3.2.2. X-ray diffraction analysis 29
3.2.3. H₂-TPR analysis 32
3.3. Product Yield 35
3.3.1. Product yield using sand 35
3.3.2. Product yield using Ni/sand 37
3.3.3. Product yield using Mn/sand 42
3.4. Oil analysis by GC/MS 46
3.4.1. Product oil analysis using sand 46
3.4.2. Product oil analysis using Ni/sand 48
3.4.3. Product oil analysis using Mn/sand 52
4. Summary 56
References 58
Abstracts 65
Fig. 1. Generation of plastic waste and disposal of plastic waste 12
Fig. 2. Schematic diagram of pyrolysis process 17
Fig. 3. TGA and DTG curves of PP 24
Fig. 4. TGA and DTG curves of PP over Ni/sand 25
Fig. 5. TGA and DTG curves of PP over Mn/sand 26
Fig. 6. XRD patterns of Ni/sand... 30
Fig. 7. XRD patterns of Mn/sand... 31
Fig. 8. TPR profile of Ni/sand 33
Fig. 9. TPR profile of Mn/sand 34
Fig. 10. The yields of products over sand as space velocity 36
Fig. 11. The yield of products as Ni/sand catalysts type... 41
Fig. 12. The yield of products as Mn/sand catalysts type... 45
Fig. 13. Oil components over sand as space velocity 47
Fig. 14. Oil components over Ni/sand as space velocity 51
Fig. 15. Oil components over Mn/sand as space velocity 55
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