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Valorization of hazardous COVID-19 mask waste while minimizing hazardous byproducts using catalytic gasification.
Farooq, Abid; Lee, Jechan; Song, Hocheol; Ko, Chang Hyun; Lee, Im-Hack; Kim, Young-Min; Rhee, Gwang Hoon; Pyo, Sumin; Park, Young-Kwon.
Afiliación
  • Farooq A; School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Seoul 02504, Republic of Korea.
  • Lee J; Department of Environmental and Safety Engineering & Department of Energy Systems Research, Ajou University, 206 World cup-ro, Suwon 16499, Republic of Korea.
  • Song H; Department of Environment and Energy, Sejong University, 209 Neungdong-ro, Seoul 05006, Republic of Korea.
  • Ko CH; School of Chemical Engineering, Chonnam National University, Gwangju, 61186, Republic of Korea.
  • Lee IH; School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Seoul 02504, Republic of Korea.
  • Kim YM; Department of Environmental Engineering, Daegu University, Gyeonsan 38453, Republic of Korea.
  • Rhee GH; Department of Mechanical and Information Engineering, University of Seoul, 163 Seoulsiripdae-ro, Seoul 02504, Republic of Korea.
  • Pyo S; School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Seoul 02504, Republic of Korea.
  • Park YK; School of Environmental Engineering, University of Seoul, 163 Seoulsiripdae-ro, Seoul 02504, Republic of Korea. Electronic address: catalica@uos.ac.kr.
J Hazard Mater ; 423(Pt B): 127222, 2022 Feb 05.
Article en En | MEDLINE | ID: mdl-34560479
This study proposes a method to valorize hazardous waste such as used COVID-19 face mask via catalytic gasification over Ni-loaded ZSM-5 type zeolites. The 25% Ni was found as an optimal loading on ZSM-5 in terms of H2 production. Among different zeolites (ZSM-5(30), ZSM-5(80), ZSM-5(280), mesoporous (m)-ZSM-5(30), and HY(30)), 25% Ni/m-ZSM-5(30) led to the highest H2 selectivity (45.04 vol%), most likely because of the highest Ni dispersion on the m-ZSM-5(30) surface, high porosity, and acid site density of the m-ZSM-5(30). The content of N-containing species (e.g., caprolactum and nitriles) in the gasification product was also reduced, when steam was used as gasifying agent, which is the source of potentially hazardous air pollutants (e.g., NOx). The increase in the SiO2/Al2O3 ratio resulted in lower tar conversion and lower H2 generation. At comparable conditions, steam gasification of the mask led to ~15 vol% higher H2 selectivity than air gasification. Overall, the Ni-loaded zeolite catalyst can not only suppress the formation of hazardous substances but also enhance the production of hydrogen from the hazardous waste material such as COVID-19 mask waste.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2022 Tipo del documento: Article Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Hazard Mater Asunto de la revista: SAUDE AMBIENTAL Año: 2022 Tipo del documento: Article Pais de publicación: Países Bajos