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Study of the co-pyrolysis of biomass and plastic wastes

An Erratum to this article was published on 26 November 2008


This work aimed to study the recovery of two types of waste by the process of pyrolysis. The obtained results show that the adding of a plastic mix improves the overall efficiency of the slow pyrolysis of pine. Therefore, it was possible to achieve higher liquid yields and less solid product than in the classic slow pyrolysis carbonization of biomass. The obtained liquids showed heating values similar to that of heating fuel oil. The gas products had energetic contents superior to that of producer gas, and the obtained solid fractions showed heating values higher than some coals. There were also identified some typical products of fast biomass pyrolysis used as raw material in several industries. The effects of experimental conditions in product yield and composition were also studied. The parameters that showed higher influence were (with its increase): reaction time on gas product composition (increase of the alkane content) and on liquid composition (increase in aromatics content); reaction temperature on product yield (decrease of liquid yield with increase of solids and gases) and on gas product composition (increase in alkane content); initial pressure on liquid composition (increase in the aromatics content) and mainly the pine content of the initial mixture on products yield (increase of gas and solid yield with a decrease in liquids) and on the gas product composition (favouring CO and CO2 formation).

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  • Bridgwater A (2002) Fast pyrolysis of biomass: a handbook. IEA Bioenergy, vol 2. CPL Scientific Publishing Services Ltd, Berkshire, UK

  • Conesa J, Font R, Marcilla A, Caballero J (1997) Kinetic model for the continuous pyrolysis of two types of polyethylene in a fluidized bed reactor. J Anal Appl Pyrolysis 40–41:419–431

    Article  Google Scholar 

  • Fortuna F, Cornacchia G, Mincarini M, Sharma V (1997) Pilot-scale experimental pyrolysis plant: mechanical and operational aspects. J Anal Appl Pyrolysis 40–41:403–417

    Article  Google Scholar 

  • Kaminsky W, Kim J-S, Schlesselmann B (1997) Pyrolysis of a fraction of mixed plastic wastes depleted in PVC. J Anal Appl Pyrolysis 40–41:365–372

    Google Scholar 

  • Pinto F, Gulyurtlu I, Cabrita I, Costa P (1999) Pyrolysis of plastic wastes. 1. Effect of plastic waste composition on product yield. J Anal Appl Pyrolysis 51:39–55

    Article  CAS  Google Scholar 

  • Pinto F, Miranda M, Gulyurtlu I, Cabrita I (2001) Study of pyrolysis process to recycle tyres and plastic wastes. International symposium—recycling and reuse of tyres. Dundee, Scotland, March 2001, Dhir RK, Limbachiya MC, Paine K (eds) Telford Ltd, pp 27–38

  • Scott D, Czernic S (1990) Fast pyrolysis of plastic wastes. Energy Fuels 4:407

    Article  CAS  Google Scholar 

  • Tang L, Huang H (2005) Plasma pyrolysis of biomass for production of syngas and carbon adsorbent. Energy Fuels 19:1174–1178

    Article  CAS  Google Scholar 

  • Williams E, Williams P (1997) Analysis of products derived from the fast pyrolysis of plastic waste. J Anal Appl Pyrolysis 40–41:347–363

    Article  Google Scholar 

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Correspondence to Filipe Paradela.

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An erratum to this article can be found at

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Paradela, F., Pinto, F., Gulyurtlu, I. et al. Study of the co-pyrolysis of biomass and plastic wastes. Clean Techn Environ Policy 11, 115–122 (2009).

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  • Pyrolysis
  • Plastics
  • Biomass
  • Waste