The pyrolysis simulation of five biomass species by hemi-cellulose, cellulose and lignin based on thermogravimetric curves

Zhou, Hui; Long, Yanqiu; Meng, Aihong; Li, Qinghai; Zhang, Yanguo

doi:10.1016/j.tca.2013.04.040

Cited by 175 publications

(88 citation statements)

References 31 publications

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“…The high content of volatiles from the decomposition of cellulose and the lowest volatiles content from the decomposition of lignin have also been reported by others using thermogravimetric analysis (TGA) (Zhou et al, 2013;Yang et al, 2007). It could be noticed that cellulose and starch had similar mass distribution, which might be due to their similar compositions based on the monomer of glucose (Dumitriu, 2004;Shafizadeh et al, 1973).…”

Section: Mass Balancementioning

confidence: 54%

“…electricity and heat production from combustion of syngas gas; chemicals and transportation fuels extracted from liquid pyrolysis oils (Liu and Liu, 2005;Hanaoka et al, 2005). In the process of pyrolysis and gasification, thermal-decomposition of the raw materials (pyrolysis) is considered to be a fundamental process (Zhou et al, 2013). Therefore, fundamentally understanding the MSW pyrolysis process is an important topic for the thermal conversion of MSW.…”

Section: Introductionmentioning

confidence: 99%

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Polycyclic aromatic hydrocarbons (PAH) formation from the pyrolysis of different municipal solid waste fractions

et al. 2015

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The formation of 2-4 ring polycyclic aromatic hydrocarbons (PAH) from the pyrolysis of nine different municipal solid waste fractions (xylan, cellulose, lignin, pectin, starch, polyethylene (PE), polystyrene (PS), polyvinyl chloride (PVC), and polyethylene terephthalate (PET)) were investigated in a fixed bed furnace at 800 °C. The mass distribution of pyrolysis was also reported. The results showed that PS generated the most total PAH, followed by PVC, PET, and lignin. More PAH were detected from the pyrolysis of plastics than the pyrolysis of biomass. In the biomass group, lignin generated more PAH than others. Naphthalene was the most abundant PAH, and the amount of 1-methynaphthalene and 2-methynaphthalene was also notable.Phenanthrene and fluorene were the most abundant 3-ring PAH, while benzo[a]anthracene and chrysene were notable in the tar of PS, PVC, and PET. 2-ring PAH dominated all tar samples, and varied from 40 wt.% to 70 wt.%. For PS, PET and lignin, PAH may be generated directly from the aromatic structure of the feedstock.

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Section: Mass Balancementioning

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Polycyclic aromatic hydrocarbons (PAH) formation from the pyrolysis of different municipal solid waste fractions

et al. 2015

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“…The hydrochars formed are analyzed with thermogravimetric analysis (TGA) and FTIR. TGA is a common method to study biomass [11][12][13][14] and hydrochar composition [13,[15][16][17] and is here mainly used to detect residual cellulose from incomplete conversion of the biomass. Infrared spectra are often used to characterize hydrochar via the presence of characteristic, IR-active, functional groups (see for example: [18]).…”

Section: Introductionmentioning

confidence: 99%

Properties of Hydrochar as Function of Feedstock, Reaction Conditions and Post-Treatment

Kruse

Zevaco

2018

Energies

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Hydrothermal carbonization (HTC) is a promising technology to convert wet biomass into carbon-rich materials. Until now, the chemical processes occurring and their influence on the product properties are not well understood. Therefore, a target-oriented production of materials with defined properties is difficult, if not impossible. Here, model compounds such as cellulose and lignin, as well as different definite biomasses such as straw and beech wood are converted by hydrothermal carbonization. Following this, thermogravimetic (TGA) and FTIR measurements are used to get information about chemical structure and thermal properties of the related hydrochars. Some of the isolated materials are thermally post-treated (490 • C and 700 • C) and analyzed. The results show that at "mild" HTC conversion, the cellulose part in a lignocellulose matrix is not completely carbonized and there is still cellulose present. Thermal post-treatment makes the properties of product materials more similar and shows complete carbonization with increase aromatic cross-linking, proven by TGA and FTIR results.

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“…Residual masses at 1123 K are 21.5% of the initial mass for OMSW and 35.6% for COMWW. This behavior may be due to the presence of polyaromatic compounds which need higher temperature to be thermally destroyed [56,57]. Furthermore, with regard to the literature [58,59] and our study, COMWW has a high inorganic salt content which may explain the high amount of ash in the COMWW sample.…”

Section: Thermal Decomposition Characteristics Of Omsw and Comwwmentioning

confidence: 48%

“…Temperature in the core of a particle can be a bit lower than temperature on its surface, and different decomposition processes or releasing rates can occur. This is the reason why it is necessary to have a small particle, homogenous sample and the heat transfer surface between the sample and the crucible as large as possible [56].…”

Section: Thermal Decomposition Characteristics Of Omsw and Comwwmentioning

confidence: 99%

Utilization of Starink Approach and Avrami Theory to Evaluate the Kinetic Parameters of the Pyrolysis of Olive Mill Solid Waste and Olive Mill Wastewater

My¹,

H²,

L³

et al. 2017

J Adv Chem Eng

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Journal of Advanced Chemical Engineering AbstractIn this study, the thermal behavior of two olive mill wastes samples such as olive mill solid waste (OMSW) and concentrated olive mill wastewater (COMWW) was examined at different heating rates ranging from 5 to 50 K/min in inert atmosphere using the technique of thermo gravimetric analysis. Avrami theory and iso-conversional Starink approach were used in this work to evaluate the kinetic parameters, including apparent activation energy (E a ) and reaction order (n). For the range of conversion degree investigated (20-80%), the values of apparent activation energy for olive mill solid waste (OMSW) were 147.51-158.79 KJ/mol and 200.13-212.51 KJ/mol for hemicellulose and cellulose respectively. Whilst the apparent activation energy of concentrated olive mill wastewater (COMWW) varied from 128.41 to 138.85 KJ/mol and from 201.3 to 226.67 KJ/mol for hemicellulose and cellulose respectively. With varied temperature (515-753 K), the corresponding values of reaction order was increased from 0.1004 and 0.1061 to 0.1787 and 0.2886, along with a decrease to 0.1220 and 0.1889 for OMSW and COMWW respectively.

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The pyrolysis simulation of five biomass species by hemi-cellulose, cellulose and lignin based on thermogravimetric curves

Cited by 175 publications

References 31 publications

Polycyclic aromatic hydrocarbons (PAH) formation from the pyrolysis of different municipal solid waste fractions

Polycyclic aromatic hydrocarbons (PAH) formation from the pyrolysis of different municipal solid waste fractions

Properties of Hydrochar as Function of Feedstock, Reaction Conditions and Post-Treatment

Utilization of Starink Approach and Avrami Theory to Evaluate the Kinetic Parameters of the Pyrolysis of Olive Mill Solid Waste and Olive Mill Wastewater

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