Analysing the effects of process parameters on HDPE pyrolysis and in-line reforming

Patrick Isicheli *, Akuma Oji, Obumneme Okwonna, Peter Muwarure, Amodu Dasilva Ibrahim and Agazuma Erazele

Centre for Gas, Refining and Petrochemicals Engineering, University of Port Harcourt, Nigeria.
 
Research Article
Global Journal of Engineering and Technology Advances, 2023, 17(01), 139–149.
Article DOI: 10.30574/gjeta.2023.17.1.0217
Publication history: 
Received on 14 September 2023; revised on 23 October 2023; accepted on 26 October 2023
 
Abstract: 
This study presents a comprehensive parametric investigation focusing on the pyrolysis and in-line reforming of High-Density Polyethylene (HDPE) at zero time on stream. The research explores the impact of varying operating parameters, specifically examining the effects of temperature, space time, and steam/plastic (S/P) ratio on conversion, hydrogen production, and product yields. The temperature was varied within the range of 600–750 °C, demonstrating notable influence on conversion efficiency and hydrogen production. Additionally, the effect of space-time (2.8–20.8 g catalyst min gHDPE−1) was thoroughly evaluated, revealing substantial improvements in both conversion and hydrogen yields. Moreover, the S/P ratio of 1 to 3 was investigated, showcasing significant enhancements in hydrogen and CO2 yields with increasing steam partial pressure. The study provides valuable insights into optimizing the process parameters for HDPE pyrolysis and in-line reforming, which are crucial for achieving efficient conversion and enhancing hydrogen production.
 
Keywords: 
Pyrolytic Conversion; African apple seed; Catalyst; High-Density Polyethylene (HDPE); Low-Density Polyethylene (LDPE); Activated Carbon
 
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