Table 4 The catalyst to WPP ratio has resulted in the highest oil yield (wt%) due to catalytic and non-catalytic pyrolysis of WPP.

From: Catalytic pyrolysis of waste polypropylene using low-cost natural catalysts

Catalyst

Yield (wt%)

Catalyst:WPP

Oil

Gas

Char

No catalyst

–

70

24.3

5.7

Kaolin

1:2

80.75

17.55

1.7

Hematite

1:2

70

27.33

2.67

White sand

1:1

68

29.24

2.76

  1. Significant values are given in bold.
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