New process to obtain unslaked lime through microwave hybrid heating and its fluid dynamics computational modeling

Auteurs

DOI :

https://doi.org/10.18540/jcecvl7iss2pp12300-01-12e

Mots-clés :

Unslaked lime. Microwave. Hybrid heating.

Résumé

This study aimed to analyze the advantages of limestone calcination through a conventional microwave heating technique. For such a purpose, the microwave was merged by hybrid heating and a refractory ceramic internally coated with copper oxide was used with a conventional muffle furnace. It has also been analyzed the behavior of calcining limestone with different masses and variations in retention time using a muffle furnace and microwaves, both with and without using the refractory ceramic. Afterwards, the process has been modeled so as to analyze temperature versus retention time. As a result, calcination using a microwave susceptor with the refractory ceramic substance proved to be a process that takes 35% less time than conventional methods. Furthermore, there has been a reduction in 66.1% of energy expenditure. It was also observed that the new procedure offers advantages in reduced greenhouse gases emissions on account of  the release of only a single substance, ease of air treatment in industrial environments and being a more economically viable process for limestone calcination, which can be further utilized by companies belonging to such a sector. Its patent deposit number BR 202018073002-4 U2 in INPI.

Téléchargements

Les données relatives au téléchargement ne sont pas encore disponibles.

Téléchargements

Publiée

2021-05-18

Comment citer

Corrêa, B. H. B. C., Bosch Neto, J. C. ., França, A. B., & Cordeiro, A. C. C. (2021). New process to obtain unslaked lime through microwave hybrid heating and its fluid dynamics computational modeling. The Journal of Engineering and Exact Sciences, 7(2), 12300–01. https://doi.org/10.18540/jcecvl7iss2pp12300-01-12e

Numéro

Rubrique

General Articles

Articles les plus lus par le même auteur ou la même autrice