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Cited by 253Thermochemical Biomass Conversion ProcessesCatalysts for Methane ReformingThermal and Kinetic Analysis

Pyrolysis-catalysis of different waste plastics over Fe/Al2O3 catalyst: High-value hydrogen, liquid fuels, carbon nanotubes and possible reaction mechanisms

Cai, Ning, Li, Xiaoqiang, Xia, Sunwen, Sun, Lin, Hu, Junhao, Bartocci, Pietro, Fantozzi, Francesco, Williams, Paul T. +2 more·2021·Energy Conversion and Management
DOI 10.1016/j.enconman.2020.113794
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  • The selectivity differences in catalytic pyrolysis stem from intrinsic plastic structure: the aromatic ring structure of polystyrene promotes dehydrogenation and inhibits graphitic carbon deposition, while the linear alkane nature of polyolefins favors formation of highly crystalline CNTs.

    “The selectivity differences stem from the intrinsic plastic structure: the aromatic ring structure of polystyrene promotes dehydrogenation and inhibits graphitic carbon deposition, while the linear alkane nature of polyolefins favors the formation of highly crystalline CNTs.”

    From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [86]

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  • With Fe/Al2O3 catalyst, all plastics yielded approximately 20 wt% oil, primarily composed of aromatic hydrocarbons within the C8-C16 carbon number range.

    “With regard to liquid products, all plastics yielded approximately 20 wt% oil, primarily composed of aromatic hydrocarbons within the C 8 -C 16 carbon number range.”

    From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [86]

  • With Fe/Al2O3 catalyst, polyolefin plastics (PP, HDPE, LDPE) generated over 40 wt% gaseous products.

    “The experimental results indicated that polyolefin plastics, including PP, HDPE, and LDPE, were responsible for the generation of over 40 wt% of gaseous products.”

    From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [86]

  • With Fe/Al2O3 catalyst, high-impact polystyrene (HIPS) and general-purpose polystyrene (GPPS) produced 49.4 wt% and 48.7 wt% solid deposits, respectively, with gaseous products containing up to 74.1 vol% hydrogen.

    “In contrast, high-impact polystyrene (HIPS) and general-purpose polystyrene (GPPS) produced 49.4 wt% and 48.7 wt% solid deposits, respectively, with their gaseous products containing up to 74.1 vol% hydrogen.”

    From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [86]

  • Solid deposits from Fe/Al2O3 catalytic pyrolysis contained carbon nanotubes (CNTs), with those from polyolefin systems exhibiting higher crystallinity.

    “A thorough analysis of the solid deposits was conducted, which confirmed the presence of carbon nanotubes (CNTs), with those from polyolefin systems exhibiting higher crystallinity.”

    From Functional carbon materials from waste plastics: synthesis and applications (2025) · cites this paper as [86]

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  49. [49][49] Park, K, . Jeong, Y ,. Guzelciftci, B,. Kim, J,. Energy, 166 (2019), pp. 343-351 Table 1 . Proximate and ultimate analysis of the waste plastics. | Sample | Ultimate analysis(wt.%) db | Ultimate analysis(wt.%) db | Ultimate analysis(wt.%) db | Ultimate analysis(wt.%) db | Proximate analysis(wt.%) ar | Proximate analysis(wt.%) ar | Proximate analysis(wt.%) ar | Proximate analysis(wt.%) ar | |----------|------------------------------|------------------------------|------------------------------|------------------------------|-------------------------------|-------------------------------|-------------------------------|-------------------------------| | Sample | C | H | S | O* | Moisture | Ash | Volatiles | Fixed Carbon | | PP | 85.18 | 13.74 | 0.17 | 0.87 | 0.04 | 0.06 | 99.87 | 0.03 | | HDPE | 85.02 | 14.60 | 0.21 | 0.16 | 0.00 | 0.01 | 99.81 | 0.18 | | LDPE | 85.11 | 14.49 | 0.19 | 0.19 | 0.03 | 0.04 | 99.71 | 0.22 | | HIPS | 91.36 | 7.51 | 0.69 | 0.51 | 0.17 | 0.02 | 99.65 | 0.06 | | GPPS | 91.31 | 7.70 | 0.63 | 0.40 | 0.15 | 0.03 | 99.60 | 0.12 | Table 2. Data on graphitization and Fe particles from XRD analysis of the reacted catalysts. | Sample | D C (nm) | d 002 (nm) | g d | N | D Fe (nm) | |----------|------------|--------------|-------|--------|-------------| | R-PP | 7.759 | 0.344 | 0.364 | 22.574 | 10.978 | | R-HDPE | 8.570 | 0.341 | 0.331 | 25.120 | 11.346 | | R-LDPE | 9.270 | 0.341 | 0.355 | 27.184 | 11.358 | | R-HIPS | 7.735 | 0.342 | 0.259 | 22.601 | 11.354 | | R-GPPS | 8.749 | 0.342 | 0.205 | 25.600 | 11.492 |

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Authors
Cai, N., Li, X., Xia, S., Sun, L., Hu, J., Bartocci, P., Fantozzi, F., Williams, P. T., Yang, H., & Chen, H.
Affiliations
  • State Key Laboratory of Coal Combustion (CN)
  • University of Perugia (IT)
  • University of Leeds (GB)
Corresponding author
Yang, Haiping
ORCID
Venue
Energy Conversion and Management
Publisher
Elsevier BV
Published
2021-02
Volume
229
Pages
113794
ISSN
0196-8904 (ISSN-L)
DOI
10.1016/j.enconman.2020.113794
OpenAlex
W3118414391
Cited by
253
References
5
Citations by year
2026: 40 · 2025: 63 · 2024: 47 · 2023: 45 · 2022: 44 · 2021: 14
FWCI
11.40
Type
journal article
Language
en
Open access
closed
Licence
Locations
  • Energy Conversion and Management (publishedVersion)
  • White Rose Research Online (University of Leeds, The University of Sheffield, University of York) (acceptedVersion)
Funders
  • National Natural Science Foundation of China
  • Foundation of State Key Laboratory of Coal Combustion
  • National Key Research and Development Program of China
  • China Postdoctoral Science Foundation
Topics
  • Physical Sciences › Engineering › Biomedical Engineering › Thermochemical Biomass Conversion Processes
  • Physical Sciences › Chemical Engineering › Catalysis › Catalysts for Methane Reforming
  • Physical Sciences › Materials Science › Materials Chemistry › Thermal and Kinetic Analysis
Keywords
plastic waste pyrolysis, Fe/Al2O3 catalyst, hydrogen production, liquid fuels, carbon nanotubes, polypropylene, polyethylene, polystyrene, reaction mechanism, carbonaceous deposits, amorphous carbon

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