Preparation and Characteristics of Biomass Char

Zhai, Ming; Wang, Xinyu; Sun, Jiawei; Dong, Peng; Liu, Pengbin; Zhu, Qunyi

doi:10.15376/biores.10.2.3017-3026

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…Meanwhile, a smooth morphology of charcoal was obtained. These phenomena described are similar to those of sawdust char reported by another work (Zhang et al 2015).…”

Section: Scanning Electron Microscopy (Sem) Analysissupporting

confidence: 90%

Pyrolysis Process and Characteristics of Products from Sawdust Briquettes

Yang¹,

Huang²,

Liu³

et al. 2016

BioResources

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The pyrolysis of briquettes made from biomass is an available and economic technological route for the production of briquette charcoal, but by-products (tar and gas) cannot be brought into full utilization, leading to the waste of resources and the addition of environmental concerns. Temperature is the most important parameter that affects the distributions and properties of briquette charcoal. This work investigated the three kinds of products of the pyrolysis of sawdust briquette in a fixed bed across a wide temperature range (250 to 950 °C). The purpose of this experiment was to study the pyrolysis process and the properties of the resulting products (briquette charcoal, liquid, and gas) of sawdust briquettes and explore the optimum operating temperature to generate good quality briquette charcoal, liquid, and gaseous products simultaneously. According to the results, the optimum pyrolysis temperature range was 450 to 650 °C, for which the briquette charcoal produced within this range had the highest calorific value (2,9.14 to 30.21 MJ/kg). Meanwhile, the liquid product is considered to be useful for liquid fuels or valuable chemical materials, and the low heating value of the gaseous product was 11.79 to 14.85 MJ/Nm 3 in this temperature range.

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“…Meanwhile, a smooth morphology of charcoal was obtained. These phenomena described are similar to those of sawdust char reported by another work (Zhang et al 2015).…”

Section: Scanning Electron Microscopy (Sem) Analysissupporting

confidence: 90%

Pyrolysis Process and Characteristics of Products from Sawdust Briquettes

Yang¹,

Huang²,

Liu³

et al. 2016

BioResources

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“…Arang sekam padi yang digunakan merupakan residu gasifikasi sekam padi (diperoleh dari Sumedang, Jawa Barat). Gasifikasi dilakukan dengan aliran udara rendah (debit udara 5 L/min, diameter gasifier 35 cm) (Zhang et al, 2015). Arang sekam padi residu gasifikasi selanjutnya digerus, diayak untuk diperoleh ukuran lolos 50 mesh (ayakan Retsch), dan dicuci dengan larutan HCl 1 M (Sigma-Aldrich) untuk menghilangkan logam pengotor.…”

Section: Metode Penelitianunclassified

Pengaruh Suhu Kalsinasi terhadap Karakteristik Komposit Forsterit-Karbon Tersintesis dalam Medium Gas Argon

et al. 2020

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Komposit forsterit-karbon merupakan salah satu material modifikasi dari forsterit yang berpotensi memiliki sifat isolator panas baik. Karbon dalam komposit dapat mengisi cacat titik pada kristal forsterit. Arang sekam padi (residu gasifikasi) mengandung SiO2 amorf dan karbon yang tinggi. Penelitian ini bertujuan menentukan pengaruh suhu kalsinasi dalam medium gas inert (dengan pengaliran gas argon) terhadap karakteristik komposit forsterit-karbon dari arang sekam padi dan magnesium karbonat. Metode penelitian meliputi preparasi arang sekam padi hasil gasifikasi, dan sintesis forsterit-karbon. Proses sintesis komposit forsterit karbon dilakukan dengan cara mencampurkan arang sekam padi dengan kalium karbonat pada rasio mol magmesium terhadap silikon sebesar 2 : 1 kemudian dikalsinasi dengan suhu divariasikan (700, 800, 900, dan 1000 oC). Selanjutnya sampel hasil sintesis dikarakterisasi dengan Fourier-transform infrared (FTIR), X-ray diffraction (XRD), dan scanning electron microscope-energy dispersive spectroscopy (SEM-EDS). Hasil karakterisasi dengan FTIR dan XRD diperoleh kesimpulan bahwa forsterit mulai terbentuk pada suhu kalisiasi 800 oC dan sempurna pada suhu 1000 oC, karenanya komposit yang terbentuk pada 1000 oC dimungkinkan sebagai forsterit-karbon, di mana unsur-unsur yang terkandung ditunjukkan oleh SEM-EDS. The Effect of Calcination Temperature on the Characteristics of Forsterite-Carbon Composites Synthesized in Argon Gas Medium. Forsterite-carbon composite is one of the material modifications of forsterite, which potentially has a good heat insulation property. Carbon in composites can fill point defects in forsterite crystals. Rice husk charcoal, as gasification residues, contains high amorphous SiO2 and carbon. This study aims to determine the effect of temperature on the calcination of a mixture of rice husk charcoal and magnesium carbonate under an inert gas (argon gas) on the characteristics of the forsterite-carbon composite produced. The experimental research performed includes the preparation of gasified rice husk charcoal and the synthesis of the carbon-forsterite composite. The synthesis process of the carbon-forsterite composites was carried out by mixing rice husk charcoal with potassium carbonate at a mole ratio of magnesium to silicon of 2 : 1. The mixture was then calcined with varying temperatures (700, 800, 900, and 1000 °C). Furthermore, the synthesized sample was characterized by Fourier-transform infrared (FTIR), X-ray diffraction (XRD), and scanning electron microscope-energy dispersive spectroscopy (SEM-EDS). The FTIR and XRD analysis show that the forsterites began to form at a calcination temperature of 800 °C and perfectly formed at a temperature of 1000 °C; therefore, the composite formed at 1000 °C is possible as forsterite-carbon, in which the contained elements were indicated by SEM-EDS.

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