Characterization of Bamboo after Ionic Liquid-H2O Pretreatment for the Pyrolysis Process

Chen, Qiyu; Endo, Takanori; Wang, Qingyue

doi:10.15376/biores.10.2.2797-2808

Cited by 10 publications

(12 citation statements)

References 27 publications

(31 reference statements)

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“…For the jute stick, the yield of solid residue was found to be approximately 14%. In addition, similar results were observed during the pyrolysis process of the other different biomass products [21,[34][35][36][37].…”

Section: Thermogravimetric Analysis Of Jute Sticksupporting

confidence: 79%

Characterization of Pyrolysis Products and Kinetic Analysis of Waste Jute Stick Biomass

Sarkar¹,

Wang²

2020

Processes

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Thermochemical process of biomass is being considered as a latest technique for the restoration of energy source and biochemical products. In this study, the influence of the different heating rates on pyrolysis behaviors and kinetic of jute stick were investigated to justify the waste jute stick biomass as a potential source of bioenergy. Pyrolysis experiments were carried out at four several heating rates of 10, 20, 30 and 40 °C/min, by utilizing the thermogravimetric analyzer (TG-DTA) and a fixed-bed pyrolysis reactor. Two different kinetic methods, Kissinger–Akahira–Sunose (KAS) and Ozawa–Flynn–Wall (OFW) were used to determine the distinct kinetic parameters. The experimental results showed that, the heating rates influenced significantly on the position of TG curve and maximum Tm peaks and highest decomposition rate of the jute stick biomass. Both the highest point of TG and the lowest point of Derivative thermogravimetry (DTG) curves were shifted towards the maximum temperature. However, the heating rates also influenced the products of pyrolysis yield, including bio-char, bio-oil and the non-condensable gases. The average values of activation energy were found to be 139.21 and 135.99 kJ/mol based on FWO and KAS models, respectively.

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Section: Thermogravimetric Analysis Of Jute Sticksupporting

confidence: 79%

Characterization of Pyrolysis Products and Kinetic Analysis of Waste Jute Stick Biomass

Sarkar¹,

Wang²

2020

Processes

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“…Being abundant throughout the whole country, bamboo can be treated as a source of income. Its leaf is claimed to have medicinal benefits among traditional practitioners 2 . Bamboo leaves, also known as Lophaterum, and bamboo shavings are commonly used as relievers for stomach aches, cooling effects and also help to counter the negative flow of qi 3 .…”

Section: Introductionmentioning

confidence: 99%

Chemical characterization of bamboo leaves (Gigantochloa albociliata and Dracaena surculosa) by sodium hydroxide treatment

et al. 2018

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Background: Dracaena surculosa and Gigantochloa albociliata leaves are different in morphology and appearance. Sodium hydroxide (NaOH) is widely used in pulping of wood for making paper or regenerated fibers. NaOH is used to separate lignin from cellulose fibers, and this treatment is needed to identify the characteristics of leaves. This study was conducted in order to investigate the characteristics of D. surculosa and G.albociliata species under NaOH treatment. Methods: NaOH was applied to the leaves for 8 hours. Treated and untreated bamboo leaves were analysed using FTIR analysis, in order to identify the presence of functional groups in the leaves. Results: It was observed that these two species not only differ physically, but also chemically. The presence of OH, CH and alkynes functional groups in the leaf sample indicates that the species share similar properties but have a slight difference in the molecular bonds. From the morphological observation of D. surculosa and G. albociliata leaves, they are slightly different in terms of leaf appearance and characteristics. G. albociliata have thicker leaves compared to D. surculosa, and NaOH treatment shows that D. surculosa leaves are harder to dissolve into the solvent. Scanning electron microscope (SEM) analysis of these two species shows the initial structure of fibres in the leaves are intact but after NaOH treatment, the fibres are ruptured and appear in non-uniform shapes. Conclusions: The initial morphology of G. albociliata and D.surculosa is different in color and appearance. However after NaOH treatment, the color becomes almost the same. Regarding SEM analysis, after NaOH treatment the morphology of the bamboo leaves completely changes. Therefore, it can be concluded that the process of hemicellulose removal had occurred during treatment. The results show that lignin has been removed by NaOH treatment to enhance the characteristics of the bamboo leaves from different species.

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“…Chen et al . reported that hemicellulose component of bamboo treated with BMIM[BF 4 ] at 100 °C reduced whereas cellulose content was increased . However, no information was given about the formation of fibrillation.…”

Section: Introductionmentioning

confidence: 99%

Dynamically controlled fibrillation under combination of ionic liquid with mechanical grinding

Eksiler

Andou

Yılmaz

et al. 2016

J of Applied Polymer Sci

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Combination of mortar grinder mill (MG) and ionic liquid (IL) treatment was employed in order to fibrillate fibers from oil palm mesocarp fiber (OPMF) in one-step. The structural changes of OPMF before and after the treatment were examined by Thermogravimetric analysis (TGA), Fourier transformed infrared (FT-IR) spectra, Wide-angle X-ray diffraction (WAXD), Dynamic light scattering (DLS) and Scanning electron microscopy (SEM). Compared with the only use of 1-butyl-3-methylimidazolium tetrafluoroborate (BMIM[BF 4 ]), combination of MG and IL helped to remove hemicellulose and lignin components partially from OPMF, and also fibrillated OPMF fibers at average particle diameter of 127 nm. Afterwards, the fibrillated fibers were utilized as reinforcement material for the purpose of enhancement of mechanical properties of poly(E-caprolactone)(PCL). The addition of OPMF treated with the combined method led to a 64% increase in tensile strength in comparison with that of untreated OPMF. These results indicate that the combined method enables effective fibrillation.

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Characterization of Bamboo after Ionic Liquid-H2O Pretreatment for the Pyrolysis Process

Cited by 10 publications

References 27 publications

Characterization of Pyrolysis Products and Kinetic Analysis of Waste Jute Stick Biomass

Characterization of Pyrolysis Products and Kinetic Analysis of Waste Jute Stick Biomass

Chemical characterization of bamboo leaves (Gigantochloa albociliata and Dracaena surculosa) by sodium hydroxide treatment

Dynamically controlled fibrillation under combination of ionic liquid with mechanical grinding

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