PMID- 35631997
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20220716
IS  - 2073-4360 (Electronic)
IS  - 2073-4360 (Linking)
VI  - 14
IP  - 10
DP  - 2022 May 23
TI  - Thermocatalytic Conversion of Plastics into Liquid Fuels over Clays.
LID - 10.3390/polym14102115 [doi]
LID - 2115
AB  - Recycling polymer waste is a great challenge in the context of the growing use of 
      plastics. Given the non-renewability of fossil fuels, the task of processing 
      plastic waste into liquid fuels seems to be a promising one. Thermocatalytic 
      conversion is one of the methods that allows obtaining liquid products of the 
      required hydrocarbon range. Clays and clay minerals can be distinguished among 
      possible environmentally friendly, cheap, and common catalysts. The moderate 
      acidity and the presence of both Lewis and Bronsted acid sites on the surface of 
      clays favor heavier hydrocarbons in liquid products of reactions occurring in 
      their pores. Liquids produced with the use of clays are often reported as being 
      in the gasoline and diesel range. In this review, the comprehensive information 
      on the thermocatalytic conversion of plastics over clays obtained during the last 
      two decades was summarized. The main experimental parameters for catalytic 
      conversion of plastics according to the articles' analysis, were the reaction 
      temperature, the acidity of modified catalysts, and the catalyst-to-plastic 
      ratio. The best clay catalysts observed were the following: bentonite/spent fluid 
      cracking catalyst for high-density polyethylene (HDPE); acid-restructured 
      montmorillonite for medium-density polyethylene (MDPE); neat kaolin powder for 
      low-density polyethylene (LDPE); Ni/acid-washed bentonite clay for polypropylene 
      (PP); neat kaolin for polystyrene (PS); Fe-restructured natural clay for a 
      mixture of polyethylene, PP, PS, polyvinyl chloride (PVC), and polyethylene 
      terephthalate (PET). The main problem in using natural clays and clay minerals as 
      catalysts is their heterogeneous composition, which can vary even within the same 
      deposit. The serpentine group is of interest in studying its catalytic properties 
      as fairly common clay minerals.
FAU - Seliverstov, Evgeniy S
AU  - Seliverstov ES
AUID- ORCID: 0000-0002-7348-3758
AD  - Department of Biology, Institute of Pharmacy, Chemistry and Biology, Belgorod 
      State National Research University, 308015 Belgorod, Russia.
FAU - Furda, Lyubov V
AU  - Furda LV
AD  - Department of General Chemistry, Institute of Pharmacy, Chemistry and Biology, 
      Belgorod State National Research University, 308015 Belgorod, Russia.
FAU - Lebedeva, Olga E
AU  - Lebedeva OE
AUID- ORCID: 0000-0002-5021-028X
AD  - Department of General Chemistry, Institute of Pharmacy, Chemistry and Biology, 
      Belgorod State National Research University, 308015 Belgorod, Russia.
LA  - eng
PT  - Journal Article
PT  - Review
DEP - 20220523
PL  - Switzerland
TA  - Polymers (Basel)
JT  - Polymers
JID - 101545357
PMC - PMC9145246
OTO - NOTNLM
OT  - catalysts
OT  - clay minerals
OT  - clays
OT  - fuel
OT  - plastics
OT  - secondary raw materials
OT  - thermocatalytic conversion
COIS- The authors declare no conflict of interest.
EDAT- 2022/05/29 06:00
MHDA- 2022/05/29 06:01
PMCR- 2022/05/23
CRDT- 2022/05/28 01:41
PHST- 2022/03/23 00:00 [received]
PHST- 2022/04/30 00:00 [revised]
PHST- 2022/05/20 00:00 [accepted]
PHST- 2022/05/28 01:41 [entrez]
PHST- 2022/05/29 06:00 [pubmed]
PHST- 2022/05/29 06:01 [medline]
PHST- 2022/05/23 00:00 [pmc-release]
AID - polym14102115 [pii]
AID - polymers-14-02115 [pii]
AID - 10.3390/polym14102115 [doi]
PST - epublish
SO  - Polymers (Basel). 2022 May 23;14(10):2115. doi: 10.3390/polym14102115.