<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness and low environmental impact. Therefore, this study utilizes coffee waste to produce activated carbon in a slow pyrolysis reactor at different reaction temperatures and residence times. The results obtained in this study show that bio-oil yields tend to increase when moderate reaction temperatures and short residence times are used. In contrast, the bio-char yields are higher at low reaction temperatures and long residence times. The Scanning Electron Microscopic (SEM) images of the coffee waste, bio-char, and activated carbon indicate that the pore size of the bio-char tends to decrease due to heating and tends to increase in the area after using ZnCl2 as activating agent. Coffee waste is a suitable feedstock for activating carbon production.</p>
</abstract>

Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness and low environmental impact. Therefore, this study utilizes coffee waste to produce activated carbon in a slow pyrolysis reactor at different reaction temperatures and residence times. The results obtained in this study show that bio-oil yields tend to increase when moderate reaction temperatures and short residence times are used. In contrast, the bio-char yields are higher at low reaction temperatures and long residence times. The Scanning Electron Microscopic (SEM) images of the coffee waste, bio-char, and activated carbon indicate that the pore size of the bio-char tends to decrease due to heating and tends to increase in the area after using ZnCl2 as activating agent. Coffee waste is a suitable feedstock for activating carbon production.

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

Department of Sustainable and Renewable Energy Engineering

National University of Sciences and Technology (NUST)

Environmental and Climate Technologies

This work is licensed under the Creative Commons Attribution 4.0 International License.

Pyrolysis is a thermochemical process commonly used for bio-oil, bio-char, and syngas production. It is particularly attractive due to its cost-effectiveness...

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

Publicado en línea: 13 sept 2022

Páginas: 720 - 729

DOI: https://doi.org/10.2478/rtuect-2022-0055

Palabras clave
Activated carbon, bio-char, pyrolysis, value-added products, zero-waste

© 2022 Abrar Inayat et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Activated Carbon Production from Coffee Waste via Slow Pyrolysis Using a Fixed Bed Reactor

Publicado en línea: 13 sept 2022

Páginas: 720 - 729

DOI: https://doi.org/10.2478/rtuect-2022-0055

Palabras claveActivated carbon, bio-char, pyrolysis, value-added products, zero-waste

© 2022 Abrar Inayat et al., published by Sciendo

This work is licensed under the Creative Commons Attribution 4.0 International License.

Palabras clave
Activated carbon, bio-char, pyrolysis, value-added products, zero-waste