Hydrogen and Carbon Nanotubes from Pyrolysis-Catalysis of Waste Plastics: A Review
By Paul T. Williams. Waste and Biomass Valorization, 2020
206 citations recorded by the source corpus.
More than 27 million tonnes of waste plastics are generated in Europe each year representing a considerable potential resource. There has been extensive research into the production of liquid fuels and aromatic chemicals from pyrolysis-catalysis of waste plastics. However, there is less work on the production of hydrogen from waste plastics via pyrolysis coupled with catalytic steam reforming. In this paper, the different reactor designs used for hydrogen production from waste plastics are considered and the influence of different catalysts and process parameters on the yield of hydrogen from different types of waste plastics are reviewed. Waste plastics have also been investigated as a source of hydrocarbons for the generation of carbon nanotubes via the chemical vapour deposition route. The influences on the yield and quality of carbon nanotubes derived from waste plastics are reviewed in relation to the reactor designs used for production, catalyst type used for carbon nanotube growth and the influence of operational parameters. Graphic Abstract
Subfields: Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/963967e09d61371af6d1d27cb50dd2b83e176f69
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In Materials Chemistry
Citations in the corpus
- Carbon nanotubes from post-consumer waste plastics: Investigations into catalyst metal and support material characteristics (2021, background): “degraded to produce a wide range of hydrocarbon volatiles which act as the carbon-rich precursor feedstock [10].”
- Impacts of Plastic Pollution on Ecosystem Services, Sustainable Development Goals, and Need to Focus on Circular Economy and Policy Interventions (2021, unknown): “There is increasing research on pyrolysis oil extraction along with various innovative side products such as multi-walled carbon nanotubes [242], plastic wax [243,244], and other high-value chemicals [245].”