Fast pyrolysis of biomass and waste plastic in a fluidized bed reactor

Xue, Yuan; Zhou, Shuai; Brown, Robert C.; Kelkar, Atul G.; Bai, Xianglan

doi:10.1016/j.fuel.2015.04.033

Cited by 292 publications

(78 citation statements)

References 32 publications

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“…The yields of gas remained nearly constant up to 650°C then increased significantly at 750°C. The results are similar to those of Xue et al (2015), who reported that char decreased with the char mainly converted to bio-oil during pyrolysis at temperatures up to about 650°C. However, pyrolysis at even higher temperatures caused the cracking of pyrolysisoil to gas.…”

Section: Distribution Of Pyrolysis Products From S Plubizincicolasupporting

confidence: 90%

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Zhong

et al. 2016

Clean Techn Environ Policy

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Appropriate disposal of hyperaccumulator biomass is a problem inhibiting the widespread use of phytoremediation technology. In the present study, kinetic analysis of the pyrolysis process of Sedum plumbizincicola, the behaviour of heavy metals and bio-oil composition were studied. The kinetic analysis of the pyrolysis process shows that activation energy (E) changed from 150 to 186 kJ mol -1 and the frequency factor (A) changed from 1.34 9 10 11 to 8.99 9 10 15 s -1 . At temperatures of 450-750°C more than 66.3 % of zinc (Zn) remained in the char. More than 87.6 % of the cadmium (Cd) was found in the bio-oil. Pyrolysis at 650°C led to the highest yield of alkanes with low-oxygen compounds found in the bio-oil. Pyrolysis at 650°C can likely offer a valuable processing method for S. plumbizincicola and recovery of Zn from the char and recovery of Cd from the bio-oil will be attempted in future research.

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Section: Distribution Of Pyrolysis Products From S Plubizincicolasupporting

confidence: 90%

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Zhong

et al. 2016

Clean Techn Environ Policy

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“…Pyrolysis depolymerizes dry ligno-cellulosic feedstocks under an oxygen free environment. When the pyrolysis temperature is moderately high (450 -550 ¡C), the volatiles arising from the pyrolysis process can be condensed to become a liquid product, called pyrolysis oil [9].…”

Section: Introductionmentioning

confidence: 99%

Characterization of biochars produced from pyrolysis of pelletized agricultural residues

Colantoni

Evic

Lord

et al. 2016

Renewable and Sustainable Energy Reviews

128

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“…There is an increasing interest in co-pyrolysis of biomass and plastic mixtures in recent years. Biomass fractions in MSW can be co-pyrolyzed with plastics such as polyethylene, polypropylene and polystyrene to produce various chemicals and fuels (Oyedun et al, 2014a(Oyedun et al, , 2014bXue et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric and calorimetric characteristics during co-pyrolysis of municipal solid waste components

2016

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The thermogravimetric and calorimetric characteristics during pyrolysis of wood, paper, textile and polyethylene terephthalate (PET) plastic in municipal solid wastes (MSW), and co-pyrolysis of biomass-derived and plastic components with and without torrefaction were investigated. The active pyrolysis of the PET plastic occurred at a much higher temperature range between 360°C and 480°C than 220-380°C for the biomass derived components. The plastic pyrolyzed at a heating rate of 10°C/min had the highest maximum weight loss rate of 18.5wt%/min occurred at 420°C, followed by 10.8wt%/min at 340°C for both paper and textile, and 9.9wt%/min at 360°C for wood. At the end of the active pyrolysis stage, the final mass of paper, wood, textile and PET was 28.77%, 26.78%, 21.62% and 18.31%, respectively. During pyrolysis of individual MSW components at 500°C, the wood required the least amount of heat at 665.2J/g, compared to 2483.2J/g for textile, 2059.4J/g for paper and 2256.1J/g for PET plastic. The PET plastic had much higher activation energy of 181.86kJ/mol, compared to 41.47kJ/mol for wood, 50.01kJ/mol for paper and 36.65kJ/mol for textile during pyrolysis at a heating rate of 10°C/min. H2O and H2 peaks were observed on the MS curves for the pyrolysis of three biomass-derived materials but there was no obvious H2O and H2 peaks on the MS curves of PET plastic. There was a significant interaction between biomass and PET plastic during co-pyrolysis if the biomass fraction was dominant. The amount of heat required for the co-pyrolysis of the biomass and plastic mixture increased with the increase of plastic mass fraction in the mixture. Torrefaction at a proper temperature and time could improve the grindability of PET plastic. The increase of torrefaction temperature and time did not affect the temperature where the maximum pyrolytic rates occurred for both biomass and plastic but decreased the maximum pyrolysis rate of biomass and increased the maximum pyrolysis rate of PET plastic. The amount of heat for the pyrolysis of biomass and PET mixture co-torrefied at 280°C for 30min was 4365J/g at 500°C, compared to 1138J/g for the pyrolysis of raw 50% wood and 50% PET mixture at the same condition.

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Fast pyrolysis of biomass and waste plastic in a fluidized bed reactor

Cited by 292 publications

References 32 publications

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Pyrolysis of Sedum plumbizincicola, a zinc and cadmium hyperaccumulator: pyrolysis kinetics, heavy metal behaviour and bio-oil production

Characterization of biochars produced from pyrolysis of pelletized agricultural residues

Thermogravimetric and calorimetric characteristics during co-pyrolysis of municipal solid waste components

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