The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier
The effect of airflow rate, biomass moisture content, particle size, and compactness on the surface properties of biochar produced in a top-lit updraft gasifier was investigated. Pine woodchips were studied as the feedstock. The carbonization airflow rates from 8 to 20 L/min were found to produce ba...
I tiakina i:
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| Ētahi atu kaituhi: | , , , |
| Hōputu: | article |
| Reo: | Ingarihi |
| I whakaputaina: |
2020
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| Ngā marau: | |
| Urunga tuihono: | https://www.mdpi.com/2076-3417/10/2/688 https://doi.org/10.3390/app10020688 https://ridda2.utp.ac.pa/handle/123456789/10103 |
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Kāore He Tūtohu, Me noho koe te mea tuatahi ki te tūtohu i tēnei pūkete!
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| _version_ | 1869652469512929280 |
|---|---|
| author | James Rivas, Arthur |
| author2 | Yuan, Wenqiao Wang, Duo Wang, Donghai Kumar, Ajay |
| author2_role | author author author author |
| author_browse | James Rivas, Arthur Kumar, Ajay Wang, Donghai Wang, Duo Yuan, Wenqiao |
| author_facet | James Rivas, Arthur Yuan, Wenqiao Wang, Duo Wang, Donghai Kumar, Ajay |
| author_role | author |
| collection | Repositorio Institucional de documento digitales de acceso abierto de la UTP |
| dc.creator.none.fl_str_mv | James Rivas, Arthur Yuan, Wenqiao Wang, Duo Wang, Donghai Kumar, Ajay |
| dc.date.none.fl_str_mv | 2020-03-03T16:04:37Z 2020-03-03T16:04:37Z 2020-03-03T16:04:37Z 2020-03-03T16:04:37Z 2020-01-19 2020-01-19 |
| dc.format.none.fl_str_mv | application/pdf application/pdf |
| dc.identifier.none.fl_str_mv | https://www.mdpi.com/2076-3417/10/2/688 https://doi.org/10.3390/app10020688 https://ridda2.utp.ac.pa/handle/123456789/10103 https://ridda2.utp.ac.pa/handle/123456789/10103 |
| dc.language.none.fl_str_mv | eng eng |
| dc.rights.none.fl_str_mv | https://creativecommons.org/licenses/by-nc-sa/4.0/ info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:Repositorio Institucional de documento digitales de acceso abierto de la UTP instname:Universidad Tecnológica de Panamá instacron:U Tecnológica de Panamá |
| dc.subject.none.fl_str_mv | biochar surface properties functional groups gasification TLUD biochar surface properties functional groups gasification TLUD |
| dc.title.none.fl_str_mv | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/publishedVersion info:eu-repo/semantics/article |
| description | The effect of airflow rate, biomass moisture content, particle size, and compactness on the surface properties of biochar produced in a top-lit updraft gasifier was investigated. Pine woodchips were studied as the feedstock. The carbonization airflow rates from 8 to 20 L/min were found to produce basic biochars (pH > 7.0) that contained basic functional groups. No acid functional groups were presented when the airflow increased. The surface charge of biochar at varying airflow rates showed that the cation exchange capacity increased with airflow. The increase in biomass moisture content from 10 to 14% caused decrease in the pH from 12 to 7.43, but the smallest or largest particle sizes resulted in low pH; therefore, the carboxylic functional groups increased. Similarly, the biomass compactness exhibited a negative correlation with the pH that reduced with increasing compactness level. Thus, the carboxylic acid functional groups of biochar increased from 0 to 0.016 mmol g−1, and the basic functional group decreased from 0.115 to 0.073 mmol g−1 when biomass compactness force increased from 0 to 3 kg. BET (Brunauer-Emmett-Teller) surface area of biochar was greater at higher airflow and smaller particle size, lower moisture content, and less compactness of the biomass |
| eu_rights_str_mv | openAccess |
| format | article |
| id | lrtest_87795956f1a07f0bfa3f76de3e2d6754 |
| instacron_str | U Tecnológica de Panamá |
| institution | U Tecnológica de Panamá |
| instname_str | Universidad Tecnológica de Panamá |
| language | eng |
| network_acronym_str | lrtest |
| network_name_str | lr |
| oai_identifier_str | oai:ridda2.utp.ac.pa:123456789/10103 |
| publishDate | 2020 |
| publishDateSort | 2020 |
| reponame_str | Repositorio Institucional de documento digitales de acceso abierto de la UTP |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | https://creativecommons.org/licenses/by-nc-sa/4.0/ |
| spelling | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft GasifierJames Rivas, ArthurYuan, WenqiaoWang, DuoWang, DonghaiKumar, Ajaybiocharsurface propertiesfunctional groupsgasificationTLUDbiocharsurface propertiesfunctional groupsgasificationTLUDThe effect of airflow rate, biomass moisture content, particle size, and compactness on the surface properties of biochar produced in a top-lit updraft gasifier was investigated. Pine woodchips were studied as the feedstock. The carbonization airflow rates from 8 to 20 L/min were found to produce basic biochars (pH > 7.0) that contained basic functional groups. No acid functional groups were presented when the airflow increased. The surface charge of biochar at varying airflow rates showed that the cation exchange capacity increased with airflow. The increase in biomass moisture content from 10 to 14% caused decrease in the pH from 12 to 7.43, but the smallest or largest particle sizes resulted in low pH; therefore, the carboxylic functional groups increased. Similarly, the biomass compactness exhibited a negative correlation with the pH that reduced with increasing compactness level. Thus, the carboxylic acid functional groups of biochar increased from 0 to 0.016 mmol g−1, and the basic functional group decreased from 0.115 to 0.073 mmol g−1 when biomass compactness force increased from 0 to 3 kg. BET (Brunauer-Emmett-Teller) surface area of biochar was greater at higher airflow and smaller particle size, lower moisture content, and less compactness of the biomassThe effect of airflow rate, biomass moisture content, particle size, and compactness on the surface properties of biochar produced in a top-lit updraft gasifier was investigated. Pine woodchips were studied as the feedstock. The carbonization airflow rates from 8 to 20 L/min were found to produce basic biochars (pH > 7.0) that contained basic functional groups. No acid functional groups were presented when the airflow increased. The surface charge of biochar at varying airflow rates showed that the cation exchange capacity increased with airflow. The increase in biomass moisture content from 10 to 14% caused decrease in the pH from 12 to 7.43, but the smallest or largest particle sizes resulted in low pH; therefore, the carboxylic functional groups increased. Similarly, the biomass compactness exhibited a negative correlation with the pH that reduced with increasing compactness level. Thus, the carboxylic acid functional groups of biochar increased from 0 to 0.016 mmol g−1, and the basic functional group decreased from 0.115 to 0.073 mmol g−1 when biomass compactness force increased from 0 to 3 kg. BET (Brunauer-Emmett-Teller) surface area of biochar was greater at higher airflow and smaller particle size, lower moisture content, and less compactness of the biomass2020-03-03T16:04:37Z2020-03-03T16:04:37Z2020-03-03T16:04:37Z2020-03-03T16:04:37Z2020-01-192020-01-19info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfapplication/pdfhttps://www.mdpi.com/2076-3417/10/2/688https://doi.org/10.3390/app10020688https://ridda2.utp.ac.pa/handle/123456789/10103https://ridda2.utp.ac.pa/handle/123456789/10103engenghttps://creativecommons.org/licenses/by-nc-sa/4.0/info:eu-repo/semantics/openAccessreponame:Repositorio Institucional de documento digitales de acceso abierto de la UTPinstname:Universidad Tecnológica de Panamáinstacron:U Tecnológica de Panamáoai:ridda2.utp.ac.pa:123456789/101032021-07-06T15:35:13Z |
| spellingShingle | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier James Rivas, Arthur biochar surface properties functional groups gasification TLUD biochar surface properties functional groups gasification TLUD |
| status_str | publishedVersion |
| title | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| title_full | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| title_fullStr | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| title_full_unstemmed | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| title_short | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| title_sort | The Effect of Gasification Conditions on the Surface Properties of Biochar Produced in a Top-Lit Updraft Gasifier |
| topic | biochar surface properties functional groups gasification TLUD biochar surface properties functional groups gasification TLUD |
| url | https://www.mdpi.com/2076-3417/10/2/688 https://doi.org/10.3390/app10020688 https://ridda2.utp.ac.pa/handle/123456789/10103 |