# Microwave-assisted pyrolysis of cashew nut shell
> Amaliyah N.

URL kanonis: https://discover.unhas.ac.id/publications/microwave-assisted-pyrolysis-of-cashew-nut-shell
Jurnal / Konferensi: International Journal of Design and Nature and Ecodynamics
Tahun terbit: 2021
DOI: https://doi.org/10.18280/ijdne.160213
ISSN: 17557437
Kuartil SJR: Q3
Citations: 10

## Authors
- Amaliyah N.

## Abstract
This research examines the characteristics of microwave assisted pyrolysis products of cashew nutshell waste (CNS). The pyrolysis process of CNS conducted with microwave heating of 400 W for 60 minutes. Pyrolysis product such as bio-gas, bio-oil and bio-char were identified using proximate and ultimate analysis, scanning electron microscope (SEM), thermogravimetric analysis (TGA/DTG), gas chromatograph-mass spectrometer (GC-MS) and Fourier Transform InfraRed (FTIR) Method. There is a significant increasing in volatile matter and fixed carbon of derived bio-char and the porous structure was observed in a range of macropore after pyrolysis. The TGA profile reveals CNS sample lost about 71.25% of mass before reached 750℃. The highest decomposition rate on the DTG profile was 0.57 mg/min and 0.56 mg/min as observed at about 261.2℃ and 340.3℃. Bio-oil yield has density of 1.036 gr/ml, viscosity of 19.5 cst after water removing, flash point of 138℃ and HHV of 21.7 MJ/kg. The GC-MS of the bio-oil shows about 53% phenol, 19% palmitic and oleic acid, 11% cyclobutene, 14% ethyl and methyl ester, and cyclopentene and cyclohexane in small amounts in accordance with FT-IR results.

## Keywords
- Pyrolysis
- Thermogravimetric analysis
- Char
- Chemistry
- Fourier transform infrared spectroscopy
- Nuclear chemistry
- Materials science
- Chromatography
- Analytical Chemistry (journal)
- Organic chemistry
- Chemical engineering
- Engineering

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Sumber: Discover Unhas — RIMS Universitas Hasanuddin.
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