| Autor: |
Inayat Abrar, Rocha-Meneses Lisandra, Said Zafar, Ghenai Chaouki, Ahmad Fahad F., Al-Ali Aisha M, Mahmood Fatemeh, Abdallah Noura |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Environmental and Climate Technologies, Vol 26, Iss 1, Pp 720-729 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2255-8837 |
| DOI: |
10.2478/rtuect-2022-0055 |
| Popis: |
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. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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