Use este identificador para citar ou linkar para este item:
https://repositorio.inpa.gov.br/handle/1/36949
Título: | Preparation of low-cost activated carbons from amazonian nutshells for CO2 storage |
Autor: | Serafin, Jarosław Ouzzine, M. Cruz Junior, Orlando F. Sreńscek-Nazzal, Joanna |
Data do documento: | 2021 |
Revista: | Biomass and Bioenergy |
É parte de: | Volume 144 |
Abstract: | Low-cost carbonaceous adsorbents with microporous structures and a moderate specific surface area (up to 1630 m2 g−1) were prepared from different amazonian nutshells by one-step chemical activation with KOH for CO2 storage. In-depth micropore structure analysis and surface characterization were performed using adsorption isotherms at 298 K and carbon dioxide isotherms at 273 K. The Brazilian nutshell and Cascara Capuassau exhibit a remarkable CO2 uptake capacity of 5.14 mmol g−1 and 5.13 mmol g−1 at 273 K, respectively up to 1 atm. The highest CO2 adsorption at 298 K equal to 3.67 mmol g−1 was observed on activated carbon produced from Cascara Capuassau. The low-pressure CO2 capacities are well correlated with the volume of small micropores (<0.7 nm) rather than the total micropore volume and surface area. The great mesoporosity of activated carbons is beneficial to ensure higher CO2 capture at high uptake pressure. © 2020 Elsevier Ltd |
DOI: | 10.1016/j.biombioe.2020.105925 |
Aparece nas coleções: | Artigos |
Arquivos associados a este item:
Não existem arquivos associados a este item.
Os itens no repositório estão protegidos por copyright, com todos os direitos reservados, salvo quando é indicado o contrário.