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Pyrolysis–catalysis of waste plastic using a nickel–stainless-steel mesh catalyst for high-value carbon products
- Source :
- Environmental Technology
- Publication Year :
- 2017
- Publisher :
- Informa UK Limited, 2017.
-
Abstract
- A stainless-steel mesh loaded with nickel catalyst was produced and used for the pyrolysis–catalysis of waste high-density polyethylene with the aim of producing high-value carbon products, including carbon nanotubes (CNTs). The catalysis temperature and plastic-to-catalyst ratio were investigated to determine the influence on the formation of different types of carbon deposited on the nickel–stainless-steel mesh catalyst. Increasing temperature from 700 to 900°C resulted in an increase in the carbon deposited on the nickel-loaded stainless-steel mesh catalyst from 32.5 to 38.0 wt%. The increase in sample-to-catalyst ratio reduced the amount of carbon deposited on the mesh catalyst in terms of g carbon g−1 plastic. The carbons were found to be largely composed of filamentous carbons, with negligible disordered (amorphous) carbons. Transmission electron microscopy analysis of the filamentous carbons revealed them to be composed of a large proportion (estimated at ∼40%) multi-walled carbon nanotubes...
- Subjects :
- inorganic chemicals
Materials science
chemistry.chemical_element
Incineration
02 engineering and technology
Carbon nanotube
010402 general chemistry
01 natural sciences
Catalysis
law.invention
chemistry.chemical_compound
Nickel
law
Environmental Chemistry
Waste Management and Disposal
Water Science and Technology
Waste management
Nanotubes, Carbon
Carbon nanofiber
General Medicine
Polyethylene
Stainless Steel
021001 nanoscience & nanotechnology
0104 chemical sciences
chemistry
Chemical engineering
Environmental Pollutants
Carbon nanotube supported catalyst
0210 nano-technology
Carbon
Pyrolysis
Subjects
Details
- ISSN :
- 1479487X and 09593330
- Volume :
- 38
- Database :
- OpenAIRE
- Journal :
- Environmental Technology
- Accession number :
- edsair.doi.dedup.....e4f6c33ac79f39954920e9ef790c2800