HDPE Pyrolysis to Wax: Process Optimization and Characterization
Transform HDPE plastic waste into valuable wax through optimized pyrolysis, reducing landfill contributions and supporting a circular economy. This process converts waste into reusable chemical building blocks for industrial applications.
Overview
The HDPE Pyrolysis to Wax process is an innovative approach to managing plastic waste by converting post-consumer recycled (PCR) HDPE into valuable wax. This process utilizes pyrolysis, a thermal decomposition method conducted in anaerobic conditions, to break down HDPE plastics into wax-like hydrocarbons. This transformation not only reduces plastic waste destined for landfills and oceans but also generates economically valuable wax, offering a strong incentive for recycling efforts. The wax produced can serve various industries, thereby contributing to a circular economy and reducing the reliance on virgin materials.
Technical specifications
Key features:
- Feedstock Preparation: Sorting, cleaning, and shredding HDPE-PCR into small pieces to ensure effective processing.
- Pyrolysis Reactor: Utilizing a reactor to heat HDPE-PCR between 300-500°C in the absence of oxygen, facilitating thermal decomposition.
- Process Optimization:
- Temperature control to achieve wax with desired properties.
- Adjusting residence time to optimize yield and quality of wax.
- Applications: The resulting wax can be tailored for various industries, allowing for flexibility in application.
Technology readiness level
Currently at Technology Readiness Level 2, this process is in the exploratory phase with a focus on developing a scalable pyrolysis process. Future plans include pilot-scale production to test scalability and quality, followed by commercial-scale production to ensure consistency and efficiency in wax output.
About University of Nigeria
The University of Nigeria is a federal, multi‑campus public university with its main campus in Nsukka and additional sites in Enugu and Ituku‑Ozalla, anchored by an affiliated teaching hospital. Clinical infrastructure through the University of Nigeria Teaching Hospital enables clinical research and translation, while an on‑campus innovation hub offers incubation and industry‑facing programming. Locations in Nsukka, Enugu, and Ituku‑Ozalla give companies access across southeastern Nigeria, with ICT facilities on the Enugu campus supporting joint testing and training. Research is backed by Nigerian federal mechanisms such as the Tertiary Education Trust Fund, alongside competitive international programs. An Intellectual Property and Technology Transfer Office guides IP protection, licensing, and commercialization.
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