Catalytic Pyrolysis of Waste Toner Powder using Low-Cost Local Clay

Abdelsamee, Ahmed Abdelhady; Maxemos, Philip Tharwat; Abdelmotelb, Hamada Mohamed

doi:10.21608/svusrc.2025.366327.1275

Catalytic Pyrolysis of Waste Toner Powder using Low-Cost Local Clay

Document Type : Original research articles

Authors

¹ Mechanical engineering, Faculty or Engineering, south Valley, University, Qen, Egypt

² Mechanical Engineering Dep., Faculty of Engineering, SVU, Qena, Egyp

³ Department of Mechanical Power Engineering and energy, Faculty of Engineering, Minia University, Minia, Egypt

10.21608/svusrc.2025.366327.1275

Abstract

The present work aims to study the catalytic pyrolysis of waste toner powder. A local material called Tafla clay is used as a new low-cost catalyst. The pyrolysis process was performed experimentally in a pilot-scale fixed-bed reactor at the aerodynamics lab, faculty of engineering, south valley university. The catalyst pyrolysis of waste toner powder was carried out at a pyrolysis temperature of 550 ̊C at different mass ratios of 10%, 20%, and 30%. The XRF analysis (X-ray Fluorescence) was selected to characterize Tafla clay, indicating the presence of some important metallic oxides such as SiO2, CaO, Al2O3, and Fe2O3 that can be separately used as a catalyst. The TGA analysis (Thermogravimetric analysis) was also conducted, illustrating that using Tafla clay can increase the degradation of waste toner powder. The bio-oil yield of waste toner powder thermal pyrolysis was 30%. While that of catalyst pyrolysis was 31%, 36%, and 17% at mass ratios of 10%, 20%, and 30%, respectively.

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