PMID- 37326613
OWN - NLM
STAT- Publisher
LR  - 20230623
IS  - 1479-487X (Electronic)
IS  - 0959-3330 (Linking)
DP  - 2023 Jun 23
TI  - Polyethylene terephthalate conversion into liquid fuel by its co-pyrolysis with 
      low- and high-density polyethylene employing scrape aluminium as catalyst.
PG  - 1-15
LID - 10.1080/09593330.2023.2227389 [doi]
AB  - The co-pyrolysis of polyethylene terephthalate (PET) with low-density 
      polyethylene (LDPE) and high-density polyethylene (HDPE) was carried out in a 
      batch steel pyrolyzer in order to convert the PET into pyrolysis oil as its 
      pyrolysis alone resulted in wax and gases. The study also aimed to increase the 
      aromatic content of pyrolysis oil by the interaction of degradation fragments of 
      linear chains of LDPE and HDPE with the benzene ring of PET during the pyrolysis. 
      The reaction conditions were optimized for a higher yield of pyrolysis oil which 
      were found to be 500  degrees C pyrolysis temperature with a heating rate of 0.5  degrees Cs(-1), 
      1 h reaction time and 20 g of the initial mass of polymer mixture having 20% PET, 
      40% LDPE and 40% HDPE. Waste aluminium particles were applied as an economical 
      catalyst in the process. The thermal co-pyrolysis yielded 8% pyrolysis oil, 32.3 
      wax, 39.7 wt% gases and 20% coke while the catalytic co-pyrolysis produced 30.2% 
      pyrolysis oil, 4.2% wax, 53.6 wt% gases and 12% coke. The fractional distillation 
      of catalytic oil resulted in 46% gasoline range oil, 31% kerosene range oil and 
      23% diesel range oil. These fractions resembled the standard fuels in terms of 
      their fuel properties as well as FT-IR spectra. The GC-MS analysis revealed that 
      the catalytic co-pyrolysis favoured the formation of relatively short-chain 
      hydrocarbons with olefins and isoparaffins as major components while the thermal 
      co-pyrolysis formed long-chain paraffins. The naphthenes and aromatics were also 
      found in higher amounts in the catalytic oil compared with the thermal oil.
FAU - Gulab, Hussain
AU  - Gulab H
AUID- ORCID: 0000-0002-7841-0355
AD  - Department of Chemistry, Bacha Khan University, Charsadda, Pakistan.
FAU - Malik, Shahi
AU  - Malik S
AUID- ORCID: 0000-0002-4383-326X
AD  - Department of Chemistry, Bacha Khan University, Charsadda, Pakistan.
LA  - eng
PT  - Journal Article
DEP - 20230623
PL  - England
TA  - Environ Technol
JT  - Environmental technology
JID - 9884939
SB  - IM
OTO - NOTNLM
OT  - Aluminium catalyst
OT  - high-density polyethylene
OT  - low-density polyethylene
OT  - polyethylene terephthalate
OT  - pyrolysis oil
EDAT- 2023/06/16 13:10
MHDA- 2023/06/16 13:10
CRDT- 2023/06/16 10:53
PHST- 2023/06/16 13:10 [pubmed]
PHST- 2023/06/16 13:10 [medline]
PHST- 2023/06/16 10:53 [entrez]
AID - 10.1080/09593330.2023.2227389 [doi]
PST - aheadofprint
SO  - Environ Technol. 2023 Jun 23:1-15. doi: 10.1080/09593330.2023.2227389.