Acceleration of cellulose co-pyrolysis with polymer

Matsuzawa, Yoshiaki; Ayabe, Muneo; Nishino, Junya

doi:10.1016/s0141-3910(00)00195-6

Cited by 135 publications

(94 citation statements)

References 13 publications

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“…3 decreased formation of gaseous and volatile aldehydes, ketons, methanol, and acetic acid has been found when wood samples were pyrolyzed with PVC, while increased evolution of cellulose derived cyclic and bicyclic compounds including levoglucosane has been observed. These trends of the changes correspond well to the published observations [12]. Figure 4.…”

Section: Cellulose Derived Pyrolysis Products Of Wood and Wood-pvc MIsupporting

confidence: 92%

“…From cellulose the amount of hydroxyl group containing volatile pyrolysis products are strongly reduced when co-pyrolysed with PVC, while that of carbonyl and unsaturated group containing ones are increased in the char. These effects and the enhanced char formation have been attributed to dehydration and charring by HCl evolved from PVC [12]. Dehydrochlorination of PVC and decomposition of hemicellulose and cellulose components of wood occur in the same temperature interval.…”

Section: Introductionmentioning

confidence: 99%

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Pyrolysis of wood–PVC mixtures. Formation of chloromethane from lignocellulosic materials in the presence of PVC

Czégény

Jakab

Bozi

et al. 2015

Journal of Analytical and Applied Pyrolysis

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Thermal decomposition of polyvinylchloride (PVC) -wood and wood component mixtures were examined under slow and fast heating by pyrolysis-gas chromatography/mass spectrometry (Py-GC/MS) and thermogravimetry/mass spectrometry(TG/MS) techniques in order to clarify the chemical interaction of biomass materials and PVC during thermal decomposition. A hardwood and a softwood (beech and pine), their lignin and two types of cellulose (Avicel and Whatman) were chosen as natural polymer components. Comparing the gaseous and liquid pyrolysis products of pure samples to those of mixtures it was found that considerably lower amount of several reactive compounds have been produced when the biomass sample was mixed with PVC. On the other hand significant amount of chloromethane appeared in the pyrolysate of wood and lignin samples mixed with PVC under fast and slow pyrolysis conditions as well, but only in traces of chlorinated organic compounds were detected from cellulose mixtures. It was concluded that the methoxy groups at phenolic rings in lignin are the methyl source of chloromethane formation, and this reaction consumed most of the HCl evolved from PVC.

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Section: Cellulose Derived Pyrolysis Products Of Wood and Wood-pvc MIsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Pyrolysis of wood–PVC mixtures. Formation of chloromethane from lignocellulosic materials in the presence of PVC

Czégény

Jakab

Bozi

et al. 2015

Journal of Analytical and Applied Pyrolysis

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“…Several studies investigating the interactions of PVC and biomass have been carried out under slow pyrolysis conditions. 10,11 However, there are few investigating fast pyrolysis where different heat transfer and mass transfer processes would be expected, resulting in different interactions between plastics and biomass. Also, fast pyrolysis technology is at present considered as an It has been reported that bio-char production from biomass pyrolysis in terms of yield and chemical properties has been significantly affected by the presence of PVC.…”

Section: Introductionmentioning

confidence: 99%

Effect of interactions of PVC and biomass components on the formation of polycyclic aromatic hydrocarbons (PAH) during fast co-pyrolysis

Zhou

Onwudili

et al. 2015

RSC Adv.

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eprints@whiterose.ac.uk https://eprints.whiterose.ac.uk/ Reuse Unless indicated otherwise, fulltext items are protected by copyright with all rights reserved. The copyright exception in section 29 of the Copyright, Designs and Patents Act 1988 allows the making of a single copy solely for the purpose of non-commercial research or private study within the limits of fair dealing. The publisher or other rights-holder may allow further reproduction and re-use of this version -refer to the White Rose Research Online record for this item. Where records identify the publisher as the copyright holder, users can verify any specific terms of use on the publisher's website. TakedownIf you consider content in White Rose Research Online to be in breach of UK law, please notify us by emailing eprints@whiterose.ac.uk including the URL of the record and the reason for the withdrawal request. RSC Advances RSCPublishing ARTICLEThis journal is © The Royal Society of Chemistry 2013 J. Name., 2013, 00, 1-3 | 1 The interactions of polyvinyl chloride (PVC) and biomass components (hemi-cellulose, cellulose and lignin) during fast pyrolysis were investigated at 800 °C in a fixed bed reactor. The interactions of PVC and biomass components decreased the HCl yield and increased the tar yield significantly. During the co-pyrolysis of PVC with the biomass components, most polycyclic aromatic hydrocarbons (PAH) components were decreased compared with the calculated proportion results. The mechanism of the interactions may be that in the fast pyrolysis process, the processes of dehydrochlorination and chain scission occur in a very short time. Biomass materials and/or bio-char can act as catalysts which inhibit the dehydrochlorination process or promote the chain scission of PVC. Therefore, the dehydrochlorination process might not be completed, resulting in the production of chlorinated oil compounds. Thus, the HCl yield is reduced and PAH concentrations are decreased during the co-pyrolysis of PVC and biomass.

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“…Pyrolysis or degradation of pure components of MSW has already been studied extensively. Major components of MSW are cellulose or lignin derived materials, polymer based material and inorganic material [1], followed by putrescible and incombustible [2]. Recycling processes for MSW can be performed in a variety of ways, ranging from mechanical, material or chemical recycling to energy recovery [3].…”

Section: Introductionmentioning

confidence: 99%

Thermogravimetric characteristics and kinetic study of biomass co-pyrolysis with plastics

Chattopadhyay

Kim

et al. 2008

Korean J. Chem. Eng.

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The pyrolysis of pure biomass, high density polyethylene (HDPE), polypropylene (PP) and polyethylene terephthalate (PET), plastic mixtures [HDPE+PP+PET (1 : 1 : 1)], and biomass/plastic mixture (9 : 1, 3 : 1, 1 : 1, 1 : 3 and 1 : 9) were investigated by using a thermogravimetric analyzer under a heating rate at 10 o C/min from room temperature to 800 o C. Paper was selected as the biomass sample. Results obtained from this comprehensive investigation indicated that biomass was decomposed mainly in the temperature range of 290-420 o C, whereas thermal degradation temperature of plastic mixture is 390-550 o C. The percentage weight loss difference (W) between experimental and theoretical ones was calculated, which reached a significantly high value of (−)15 to (−)50% at around 450 o C in various blend materials. These thermogravimetric results indicate the presence of significant interaction and synergistic effect between biomass and plastic mixtures during their co-pyrolysis at the high temperature region. With increase in the amount of plastic mixture in blend material, the char production has diminished at final pyrolysis temperature range. Additionally, a kinetic analysis was performed to fit with TGA data, the entire pyrolysis processes being considered as one or two consecutive first order reactions.

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Acceleration of cellulose co-pyrolysis with polymer

Cited by 135 publications

References 13 publications

Pyrolysis of wood–PVC mixtures. Formation of chloromethane from lignocellulosic materials in the presence of PVC

Pyrolysis of wood–PVC mixtures. Formation of chloromethane from lignocellulosic materials in the presence of PVC

Effect of interactions of PVC and biomass components on the formation of polycyclic aromatic hydrocarbons (PAH) during fast co-pyrolysis

Thermogravimetric characteristics and kinetic study of biomass co-pyrolysis with plastics

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