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Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch

In the process of preparing asphalt-based spherical activated carbon, the molten asphalt must be formed into qualified spherical particles through the granulation process. Taking the process of molten asphalt granulation as the research direction, this paper carries out an asphalt rotational viscosi...

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Detalles Bibliográficos
Autores principales: Wang, Yaosen, Qiu, Hongsheng, Ayasrah, Mo’men
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2023
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10095306/
https://www.ncbi.nlm.nih.gov/pubmed/37048906
http://dx.doi.org/10.3390/ma16072612
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author Wang, Yaosen
Qiu, Hongsheng
Ayasrah, Mo’men
author_facet Wang, Yaosen
Qiu, Hongsheng
Ayasrah, Mo’men
author_sort Wang, Yaosen
collection PubMed
description In the process of preparing asphalt-based spherical activated carbon, the molten asphalt must be formed into qualified spherical particles through the granulation process. Taking the process of molten asphalt granulation as the research direction, this paper carries out an asphalt rotational viscosity experiment and a thermogravimetric differential thermal experiment (TG–DSC), and obtains the optimal temperature and viscosity values for the asphalt granulation process. The fluent module in ANSYS software is used to input the known asphalt and prilling tower parameters. Based on the asphalt prilling principle, the thermal environment in the prilling tower during on-site melting and asphalt prilling is simulated. The results show that No. 70 matrix asphalt has good fluidity at 135 °C, and that, subsequently, the viscosity of the asphalt is stable and the fluidity of asphalt remains good with the increase in temperature; they also showed that the air velocity is fastest in the central area of the prilling tower, the air temperature is the highest at the top of the tower, and the air temperature in the central area is the lowest at the same height. Finally, a new approach to the granulation process of pitch-based spherical activated carbon is developed, which provides a reference for the basic experimental data and numerical simulation direction for the use of granulation towers to complete the granulation of molten asphalt in industry in the future.
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spelling pubmed-100953062023-04-13 Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch Wang, Yaosen Qiu, Hongsheng Ayasrah, Mo’men Materials (Basel) Article In the process of preparing asphalt-based spherical activated carbon, the molten asphalt must be formed into qualified spherical particles through the granulation process. Taking the process of molten asphalt granulation as the research direction, this paper carries out an asphalt rotational viscosity experiment and a thermogravimetric differential thermal experiment (TG–DSC), and obtains the optimal temperature and viscosity values for the asphalt granulation process. The fluent module in ANSYS software is used to input the known asphalt and prilling tower parameters. Based on the asphalt prilling principle, the thermal environment in the prilling tower during on-site melting and asphalt prilling is simulated. The results show that No. 70 matrix asphalt has good fluidity at 135 °C, and that, subsequently, the viscosity of the asphalt is stable and the fluidity of asphalt remains good with the increase in temperature; they also showed that the air velocity is fastest in the central area of the prilling tower, the air temperature is the highest at the top of the tower, and the air temperature in the central area is the lowest at the same height. Finally, a new approach to the granulation process of pitch-based spherical activated carbon is developed, which provides a reference for the basic experimental data and numerical simulation direction for the use of granulation towers to complete the granulation of molten asphalt in industry in the future. MDPI 2023-03-25 /pmc/articles/PMC10095306/ /pubmed/37048906 http://dx.doi.org/10.3390/ma16072612 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Wang, Yaosen
Qiu, Hongsheng
Ayasrah, Mo’men
Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch
title Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch
title_full Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch
title_fullStr Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch
title_full_unstemmed Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch
title_short Study on Pelletizing Process of Spherical Activated Carbon Based on Molten Pitch
title_sort study on pelletizing process of spherical activated carbon based on molten pitch
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10095306/
https://www.ncbi.nlm.nih.gov/pubmed/37048906
http://dx.doi.org/10.3390/ma16072612
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