scholarly journals Waste-to-Fuels: Pyrolysis of Low-Density Polyethylene Waste in the Presence of H-ZSM-11

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1198
Author(s):  
Nahyeon Lee ◽  
Junghee Joo ◽  
Kun-Yi Andrew Lin ◽  
Jechan Lee
Keyword(s):  
Catalytic Pyrolysis ◽  
Pyrolysis Temperature ◽  
Jet Fuel ◽  
Aliphatic Hydrocarbons ◽  
Low Density Polyethylene ◽  
Low Molecular Weight ◽  
Low Density ◽  
Motor Oil ◽  
Waste Valorization ◽  
Gaseous Hydrocarbon

Herein, the pyrolysis of low-density polyethylene (LDPE) scrap in the presence of a H-ZSM-11 zeolite was conducted as an effort to valorize plastic waste to fuel-range chemicals. The LDPE-derived pyrolytic gas was composed of low-molecular-weight aliphatic hydrocarbons (e.g., methane, ethane, propane, ethylene, and propylene) and hydrogen. An increase in pyrolysis temperature led to increasing the gaseous hydrocarbon yields for the pyrolysis of LDPE. Using the H-ZSM-11 catalyst in the pyrolysis of LDPE greatly enhanced the content of propylene in the pyrolytic gas because of promoted dehydrogenation of propane formed during the pyrolysis. Apart from the light aliphatic hydrocarbons, jet fuel-, diesel-, and motor oil-range hydrocarbons were found in the pyrolytic liquid for the non-catalytic and catalytic pyrolysis. The change in pyrolysis temperature for the catalytic pyrolysis affected the hydrocarbon compositions of the pyrolytic liquid more materially than for the non-catalytic pyrolysis. This study experimentally showed that H-ZSM-11 can be effective at producing fuel-range hydrocarbons from LDPE waste through pyrolysis. The results would contribute to the development of waste valorization process via plastic upcycling.

Study on the reusability of kaolin as catalysts for catalytic pyrolysis of low-density polyethylene

Fuel ◽  
2021 ◽  
Vol 302 ◽  
pp. 121164
Author(s):  
Wei Luo ◽  
Zhongyi Fan ◽  
Jun Wan ◽  
Qing Hu ◽  
Hang Dong ◽  
...  
Keyword(s):  
Catalytic Pyrolysis ◽  
Low Density Polyethylene ◽  
Low Density

scholarly journals Co-Pyrolysis of Low-Density Polyethylene and Motor Oil—Investigation of the Chemical Interactions between the Components

Recycling ◽  
2020 ◽  
Vol 5 (4) ◽  
pp. 33
Author(s):  
Bart Rimez ◽  
Sacha Breyer ◽  
Odile Vekemans ◽  
Benoit Haut
Keyword(s):  
Mass Spectrometry ◽  
Thermal Analysis ◽  
High Resolution ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Motor Oil ◽  
Chemical Interactions ◽  
Analysis Methods ◽  
High Resolution Thermogravimetry

In this work, different thermal analysis methods have been used to study the co-pyrolysis of low-density polyethylene (LDPE) and motor oil. Two kinds of motor oil were considered, a fresh one and a used one. Through the comparison of experimental curves and so-called “theoretical curves”, high-resolution thermogravimetry experiments allowed highlighting interactions between the LDPE and each of the two oils, when they are co-pyrolyzed. While thermogravimetry coupled with mass spectrometry did not give any insights into these interactions, pyrolysis coupled to gaseous chromatograph and mass spectrometry allowed identifying aldehydes in the products of the co-pyrolysis of LDPE and each of the two oils. These aldehydes were not observed during the pyrolysis of the LDPE or the oils alone. On the basis of these results, various explanations for the formation of these aldehydes are proposed.

Application of highly stable biochar catalysts for efficient pyrolysis of plastics: a readily accessible potential solution to a global waste crisis

2020 ◽  
Vol 4 (9) ◽  
pp. 4614-4624
Author(s):  
Chenxi Wang ◽  
Hanwu Lei ◽  
Moriko Qian ◽  
Erguang Huo ◽  
Yunfeng Zhao ◽  
...  
Keyword(s):  
Corn Stover ◽  
Catalytic Pyrolysis ◽  
Douglas Fir ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Waste Plastics ◽  
Potential Solution

Biochar catalysts derived from corn stover and Douglas fir were employed for the catalytic pyrolysis of model low-density polyethylene (LDPE) and real waste plastics.

A novel production of phase-divided jet-fuel-range hydrocarbons and phenol-enriched chemicals from catalytic co-pyrolysis of lignocellulosic biomass with low-density polyethylene over carbon catalysts

2020 ◽  
Vol 4 (7) ◽  
pp. 3687-3700
Author(s):  
Dengle Duan ◽  
Yayun Zhang ◽  
Hanwu Lei ◽  
Moriko Qian ◽  
Elmar Villota ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Lignocellulosic Biomass ◽  
Jet Fuel ◽  
Douglas Fir ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Carbon Catalysts ◽  
First Time

The catalytic co-pyrolysis of Douglas fir and low-density polyethylene with commercial activated carbon catalysts was investigated for the first time.

Catalytic Pyrolysis of Low-Density Polyethylene over Alumina-Supported Noble Metal Catalysts

2010 ◽  
Vol 24 (8) ◽  
pp. 4231-4240 ◽  
Author(s):  
Nagi Insura ◽  
Jude A. Onwudili ◽  
Paul T. Williams
Keyword(s):  
Noble Metal ◽  
Catalytic Pyrolysis ◽  
Metal Catalysts ◽  
Low Density Polyethylene ◽  
Low Density ◽  
Noble Metal Catalysts
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