Investigation on Saprolitic Laterite Ore Reduction Process using Palm Kernel Shell Charcoal: Kinetics and Phase Transformation
The performance and kinetic of saprolitic laterite reduction using palm kernel shell charcoal and anthracite were studied. The anthracite coal represents the conventional high-grade carbon content matter, and palm kernel shell charcoal represents biomass-based reductant. The experiment was conduc...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Universitas Indonesia
2022-07-01
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| Series: | International Journal of Technology |
| Subjects: | |
| Online Access: | https://ijtech.eng.ui.ac.id/article/view/4701 |
| Summary: | The performance and kinetic of saprolitic laterite reduction using palm
kernel shell charcoal and anthracite were studied. The anthracite coal
represents the conventional high-grade carbon content matter, and palm kernel
shell charcoal represents biomass-based reductant. The experiment was conducted
at a temperature ranging from 800oC and 1000oC. XRD analysis was applied to
observe phase transformation. For the kinetic study, two models, namely (1)
Jander and (2) Ginstling-Brounhstein diffusion model, were applied. The mineral
phase results indicated that both reductants yield Magnetite from Goethite in
the laterite. The best fit model is obtained by the Jander model with the
energy activation of 33.68 kJ/mol for anthracite reductant and
10.99 – 18.19 kJ/mol for palm kernel shell reductant, indicating that reduction
is easier to occur using palm kernel shell. |
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| ISSN: | 2086-9614 2087-2100 |