Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum
Catalytic pyrolysis is an attractive alternative for converting biomass into energy and chemicals, replacing fossil sources. Efficient catalysts can be used to remove compounds containing oxygen during pyrolysis, improving the bio-oil properties and thus being an important route towards sustainabili...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-08-01
|
| Series: | Biomass |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2673-8783/3/3/17 |
| _version_ | 1797581157420761088 |
|---|---|
| author | Mateus da Silva Carvalho Francieli Martins Mayer Ana Paula Stelzer de Oliveira Doris Ruiz Cesário Francisco das Virgens Maria do Carmo Rangel |
| author_facet | Mateus da Silva Carvalho Francieli Martins Mayer Ana Paula Stelzer de Oliveira Doris Ruiz Cesário Francisco das Virgens Maria do Carmo Rangel |
| author_sort | Mateus da Silva Carvalho |
| collection | DOAJ |
| description | Catalytic pyrolysis is an attractive alternative for converting biomass into energy and chemicals, replacing fossil sources. Efficient catalysts can be used to remove compounds containing oxygen during pyrolysis, improving the bio-oil properties and thus being an important route towards sustainability. Catalytic pyrolysis of medium-density fiberboard (MDF) residues over platinum (1%) supported on beta zeolite was carried out using a biomass/catalyst ratio of 1.0/0.2. The catalysts were characterized via Fourier transform infrared spectroscopy, flame atomic absorption spectrometry, X-ray diffraction, nuclear magnetic resonance, temperature-programmed reduction, and temperature-programmed desorption of ammonia. The thermokinetic and thermodynamic parameters were determined using the isoconversional and non-isothermal methods of Friedman, Flynn-Wall-Ozawa (FWO), and Kissinger-Ahakira-Sunose (KAS). The Friedman method was the most adequate to describe the reaction and thermodynamic parameters. The results show that the catalysts promote the reduction in activation energy compared to non-catalytic pyrolysis. Non-impregnated and impregnated catalysts showed different activation energies and thus different reactions. The addition of platinum slightly increased the activation energy due to the promotion of reactions that require more energy, for example, cracking and coke deposition. |
| first_indexed | 2024-03-10T23:01:17Z |
| format | Article |
| id | doaj.art-49ee1938c0eb4ea0b4779d1e73a4679d |
| institution | Directory Open Access Journal |
| issn | 2673-8783 |
| language | English |
| last_indexed | 2024-03-10T23:01:17Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomass |
| spelling | doaj.art-49ee1938c0eb4ea0b4779d1e73a4679d2023-11-19T09:39:29ZengMDPI AGBiomass2673-87832023-08-013327929010.3390/biomass3030017Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported PlatinumMateus da Silva Carvalho0Francieli Martins Mayer1Ana Paula Stelzer de Oliveira2Doris Ruiz3Cesário Francisco das Virgens4Maria do Carmo Rangel5Escola Politécnica de Engenharia, Universidade Federal da Bahia, Salvador 40210-630, BA, BrazilInstitute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre 90650-001, RS, BrazilInstitute of Chemistry, Universidade Federal do Rio Grande do Sul, Porto Alegre 90650-001, RS, BrazilFacultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Concepción 4070371, ChileDepartamento de Ciências Exatas e da Terra, Universidade do Estado da Bahia, Salvador 41150-000, BA, BrazilEscola Politécnica de Engenharia, Universidade Federal da Bahia, Salvador 40210-630, BA, BrazilCatalytic pyrolysis is an attractive alternative for converting biomass into energy and chemicals, replacing fossil sources. Efficient catalysts can be used to remove compounds containing oxygen during pyrolysis, improving the bio-oil properties and thus being an important route towards sustainability. Catalytic pyrolysis of medium-density fiberboard (MDF) residues over platinum (1%) supported on beta zeolite was carried out using a biomass/catalyst ratio of 1.0/0.2. The catalysts were characterized via Fourier transform infrared spectroscopy, flame atomic absorption spectrometry, X-ray diffraction, nuclear magnetic resonance, temperature-programmed reduction, and temperature-programmed desorption of ammonia. The thermokinetic and thermodynamic parameters were determined using the isoconversional and non-isothermal methods of Friedman, Flynn-Wall-Ozawa (FWO), and Kissinger-Ahakira-Sunose (KAS). The Friedman method was the most adequate to describe the reaction and thermodynamic parameters. The results show that the catalysts promote the reduction in activation energy compared to non-catalytic pyrolysis. Non-impregnated and impregnated catalysts showed different activation energies and thus different reactions. The addition of platinum slightly increased the activation energy due to the promotion of reactions that require more energy, for example, cracking and coke deposition.https://www.mdpi.com/2673-8783/3/3/17beta zeolitepyrolysismedium-density fiberboardthermokinetic conversionplatinum |
| spellingShingle | Mateus da Silva Carvalho Francieli Martins Mayer Ana Paula Stelzer de Oliveira Doris Ruiz Cesário Francisco das Virgens Maria do Carmo Rangel Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum Biomass beta zeolite pyrolysis medium-density fiberboard thermokinetic conversion platinum |
| title | Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum |
| title_full | Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum |
| title_fullStr | Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum |
| title_full_unstemmed | Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum |
| title_short | Thermokinetic Study of Catalytic Pyrolysis of Medium-Density Fiberboards over Beta-Zeolite-Supported Platinum |
| title_sort | thermokinetic study of catalytic pyrolysis of medium density fiberboards over beta zeolite supported platinum |
| topic | beta zeolite pyrolysis medium-density fiberboard thermokinetic conversion platinum |
| url | https://www.mdpi.com/2673-8783/3/3/17 |
| work_keys_str_mv | AT mateusdasilvacarvalho thermokineticstudyofcatalyticpyrolysisofmediumdensityfiberboardsoverbetazeolitesupportedplatinum AT francielimartinsmayer thermokineticstudyofcatalyticpyrolysisofmediumdensityfiberboardsoverbetazeolitesupportedplatinum AT anapaulastelzerdeoliveira thermokineticstudyofcatalyticpyrolysisofmediumdensityfiberboardsoverbetazeolitesupportedplatinum AT dorisruiz thermokineticstudyofcatalyticpyrolysisofmediumdensityfiberboardsoverbetazeolitesupportedplatinum AT cesariofranciscodasvirgens thermokineticstudyofcatalyticpyrolysisofmediumdensityfiberboardsoverbetazeolitesupportedplatinum AT mariadocarmorangel thermokineticstudyofcatalyticpyrolysisofmediumdensityfiberboardsoverbetazeolitesupportedplatinum |