Effect of extractive content on the thermal stability of two wood species from Brazil

Poletto, Matheus

doi:10.4067/s0718-221x2016005000039

Cited by 27 publications

(22 citation statements)

References 24 publications

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“…Pyrolysis, a universally applicable method for reusing biomass materials, has gained more and more attention. The pyrolysis behaviour and mechanism of the main components of wood such as cellulose [1,2], hemicellulose [1,2], lignin [1,2,3] and extractives [2,4] as well as the pyrolysis differences between different wood species [5] have been reported. Mainly due to the shortage of high-quality wood from natural forest and the insufficient wood properties of plantation forest, the production and consumption of modified wood are increasing.…”

Section: Introductionmentioning

confidence: 99%

Effects of impregnation combined heat treatment on the pyrolysis behavior of poplar wood

Jin

Cai

et al. 2020

PLoS ONE

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To investigate the effects of urea-formaldehyde (UF) resin impregnation combined heat treatment (IMPG-HT) on the pyrolysis behavior of poplar wood, the chemical composition, pyrolysis characteristics, pyrolysis kinetics, and gaseous products released during pyrolysis of untreated (control), IMPG-HT, IMPG and HT woods were analyzed. The results demonstrate that IMPG-HT changes pyrolysis behavior of poplar wood significantly. Unlike the control and HT samples, the thermogravimetric / derivative thermogravimetric (TG/DTG) curves of IMPG wood shift toward lower temperature, and the shoulder on DTG curves weaken or even disappear. The maximum mass loss rate of IMPG-HT samples decreases, and carbon residual yield increases to 23% or more and activation energy (E) increases sharply after conversion rate (α) reaching 0.80. HT improves the thermal stability of IMPG wood, which is represented by the increase of decomposition temperature (T d ) and DTG peak temperature (T peak ) and the higher E value of IMPG-HT wood. For the pyrolysis gaseous products, IMPG-HT wood produces nitrogen-containing gases (HNCO and NH 3 ) due to the presence of UF resin, but the amounts of these gases are less than that produced by IMPG wood because the heat treatment had removed part of N elements. (2020) Effects of impregnation combined heat treatment on the pyrolysis behavior of poplar wood. PLoS ONE 15(3): e0229907. https://doi.org/ 10.Effects of impregnation combined heat treatment on the pyrolysis behavior of poplar wood PLOS ONE | https://doi.org/10.1371/journal.pone.0229907 March 17, 2020 2 / 15 Fig 5. The linear fitting diagrams of IMPG-HT samples. (a) The linear fitting diagrams of IMPG-HT samples obtained by FWO method within the conversion range of 0.10<α<0.90; (b) The linear fitting diagrams of IMPG-HT samples obtained by KAS method within the conversion range of 0.10<α<0.90.

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Section: Introductionmentioning

confidence: 99%

Effects of impregnation combined heat treatment on the pyrolysis behavior of poplar wood

Jin

Cai

et al. 2020

PLoS ONE

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“…This may explain why woods of high lignin content do not always result in high charcoal yields. A high concentration of extractives of low thermal resistance can also lead to low charcoal yields (Poletto et al, 2012;Poletto, 2016).…”

Section: Discussionmentioning

confidence: 99%

Thermal Profile of Wood Species From the Brazilian Semi-Arid Region Submitted to Pyrolysis

Júnior

Andrade

Protásio

et al. 2019

CERNE

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Thermal profile of wood species from the brazilian semi-arid region submitted to pyrolysis. CERNE, v. 25, n. 1, p. 44-53, 2019. HIGHLIGHTS We analyzed native and endangered species of the Brazilian semi-arid region. The thermal profile of the species was questioned for energy generation. Mimosa tenuiflora and Poincianella pyramidalis were the most suitable wood species for sustainable charcoal production. The energy characteristics will allow the efficient management of the species in mixed plantations for this purpose.

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“…1 (Kojima et al, 2014;Antes and Joutsimo, 2015;Neiva et al, 2015;Zhou et al, 2015;Gallina et al, 2016;Hou et al, 2016;Pinto et al, 2016;Poletto, 2016) 2 (Ataç and Eroǧlu, 2013;Gulsoy and Tufek, 2013;Xiang and He, 2013;Cotana et al, 2014;Herrera et al, 2014;Castillo et al, 2015;Gulsoy and Ozturk, 2015;Reyes et al, 2016;Valenzuela et al, 2016) Gambar 3. (Sixta, 2008).…”

Section: Rendemen Pulp Belum Putih Bambu Dekortikasimentioning

confidence: 99%

Pembuatan dan Karakterisasi Dissolving Pulp Serat Panjang dari Bambu Duri (Bambusa blumeana)

Purwita

Sugesty

2018

J selulosa

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Preparation and Characterization of Long Fiber Dissolving Pulp from Spiny Bamboo (Bambusa blumeana)The need for long fiber dissolving pulp in Indonesia can only be met from imports. Bamboo is a nonwood plant and known as source of long fiber. This research aims to study the potential of spiny bamboo to be used as raw material for producing long fiber dissolving pulp. This research was conducted using two different types of raw materials preparation to produce bamboo chip and decorticated bamboo. The pulping process is carried out by pre-hydrolysis kraft and bleaching performed with two different bleaching sequences, i.e Do ED1 D2 and Do EpD1 D2 . Based on the experimental results, spiny bamboo has good potential to be used as raw material for dissolving pulp. Spiny bamboo belongs to long fibers with an average fiber length of 2.46 mm. The dissolving quality depends on the preparation of the raw material and the bleaching sequence. The yield of spiny bamboo dissolving pulp ranged from 37.97 - 40.76% with alpha cellulose content of 94.88 - 98.67%, and viscosity of 16.43 - 25.75 cP. Decorticated bamboo with bleaching sequence of Do EpD1 D2 produced the highest quality of dissolving pulp with the highest brightness and alpha cellulose were 89.61% ISO and 98.67%, respectively.AbstrakKebutuhan dissolving pulp serat panjang di Indonesia hanya dapat dipenuhi melalui impor. Bambu adalah tanaman nonkayu dan dikenal sebagai sumber serat panjang. Penelitian ini bertujuan untuk mempelajari potensi bambu duri untuk dijadikan bahan baku pembuatan dissolving pulp serat panjang. Penelitian ini dilakukan dengan dua jenis persiapan bahan baku yang berbeda untuk menghasilkan serpih bambu dan bambu dekortikasi. Proses pemasakan dilakukan dengan proses pra-hidrolisis kraft dan pemutihan dilakukan dengan dua urutan pemutihan yang berbeda, yaitu DoED1D2 dan DoEpD1D2. Berdasarkan hasil penelitian, bambu duri memiliki potensi yang baik untuk digunakan sebagai bahan baku pembuatan dissolving pulp. Bambu duri tergolong serat panjang dengan panjang serat rata-rata 2,46 mm. Kualitas dissolving pup yang dihasilkan tergantung dari persiapan bahan baku dan urutan pemutihan. Rendemen dissolving pulp bambu duri berkisar 37,97 - 40,76%, dengan kandungan selulosa alfa 94,88 - 98,67%, dan viskositas 16,43 - 25,75 cP. Bambu dekortikasi dengan urutan pemutihan DoEpD1D2 menghasilkan dissolving pulp paling unggul dengan derajat cerah dan selulosa alfa tertinggi berturut-turut 89,61 %ISO dan 98,67%.Kata kunci: dissolving pulp, bambu duri (Bambusa blumeana), serpih bambu, bambu dekortikasi, prahidrolisis kraft

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Effect of extractive content on the thermal stability of two wood species from Brazil

Cited by 27 publications

References 24 publications

Effects of impregnation combined heat treatment on the pyrolysis behavior of poplar wood

Effects of impregnation combined heat treatment on the pyrolysis behavior of poplar wood

Thermal Profile of Wood Species From the Brazilian Semi-Arid Region Submitted to Pyrolysis

Pembuatan dan Karakterisasi Dissolving Pulp Serat Panjang dari Bambu Duri (Bambusa blumeana)

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