Hybrid air filters: A review of the main equipment configurations and results

Autor(es)

Chiaramonte de Castro, Bruno Jose ^[1] ; Sartim, Rafael ^{[2, 3]} ; Guerra, Vadila Giovana ^[1] ; Aguiar, Monica Lopes ^[1]

Afiliação do(s) autor(es)

^[1] Univ Fed Sao Carlos, Grad Program Chem Engn, Rodovia Washington Luis S-N, BR-13565905 Sao Carlos, SP - Brazil

^[2] ArcelorMittal, Global R&D Brazil, Ave Brigadeiro Eduardo Gomes 526, BR-29160904 Serra, ES - Brazil

^[3] Univ Fed Espirito Santo, Dept Ind Technol, Ave Fernando Ferrari 514, BR-29075910 Vitoria, ES - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: PROCESS SAFETY AND ENVIRONMENTAL PROTECTION; v. 144, p. 193-207, DEC 2020.
• Citações Web of Science: 0

Resumo

Electrostatic precipitators and bag filters are traditionally used to separate particulate matter from gas streams. The combination of these two technologies originated the hybrid filters. Several configurations of hybrid filters were developed in the last three decades, mainly for application in the treatment of flue gas from coal-fired power plants. Two of them stood out for the amount of applications and works that intended to study them: the Compact Hybrid Particulate Collector (COHPAC) and the Advanced Hybrid Particulate Collector (AHPC). This paper aimed to present the characteristics of these two constructions and to review the main results of hybrid filtration performance obtained in laboratory tests and industrial applications. The two configurations proved to be efficient both for the collection of particulate matter, particularly of submicron particles, and for the removal of mercury and heavy metals. In general, the pressure drop in hybrid filters is lower than in conventional bag filters, while the cycle length and the lifespan of the bags are longer. However, in some cases, the formation of dense cakes on the surface of the bags may suppress the advantages of using hybrid devices. (C) 2020 Institution of Chemical Engineers. Published by Elsevier B.V. All rights reserved. (AU)

• Processo FAPESP: 97/04024-7 - Estudo da formacao de tortas de filtracao de gases, em filtros de tecido.
• Beneficiário: Mônica Lopes Aguiar
• Modalidade de apoio: Auxílio à Pesquisa - Regular