Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization
Production of biochar from slow pyrolysis of biomass is a promising carbon negative procedure since it removes the net carbon dioxide in the atmosphere and produce recalcitrant carbon suitable for sequestration in soil. Biochar production can vary significantly with the pyrolysis parameter. This stu...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Babol Noshirvani University of Technology
2012-01-01
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| Series: | Iranica Journal of Energy and Environment |
| Subjects: | |
| Online Access: | http://www.ijee.net/Journal/ijee/vol3/no5/10.pdf |
| _version_ | 1827297526383902720 |
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| author | Nurhidayah Mohamed Noor Adilah Shariff Nurhayati Abdullah |
| author_facet | Nurhidayah Mohamed Noor Adilah Shariff Nurhayati Abdullah |
| author_sort | Nurhidayah Mohamed Noor |
| collection | DOAJ |
| description | Production of biochar from slow pyrolysis of biomass is a promising carbon negative procedure since it removes the net carbon dioxide in the atmosphere and produce recalcitrant carbon suitable for sequestration in soil. Biochar production can vary significantly with the pyrolysis parameter. This study investigated the impact of temperature and heating rate on the yield and properties of biochar derived from cassava plantations residues which are cassava stem (CS) and cassava rhizome (CR). The pyrolysis temperatures ranged from 400°C to 600°C while the heating rate parameter was varied from 5°C/min to 25°C/min. The experiment was conducted using the lab scale slow pyrolysis system. The increment of temperature and heating rate of slow pyrolysis for both cassava wastes had raised the fixed carbon content of the biochar but decreased the biochar yield. More biochar was produced at lower temperature and lower heating rate. Temperature gave more influence on the biochar yield as compared to the heating rate parameter. The highest biochar yield of more than 35 mf wt. % can be obtained from both CS and CR at 400°C and heating rate of 5°C/min. From the proximate analysis, the results showed that cassava wastes contain high percentage of volatile matter which is more than 80 mf wt. %. Meanwhile, the biochar produced from cassava wastes contain high percentage of fixed carbon which is about 5−8 times higher than their raw samples. This suggested that, it is a good step to convert CS and CR into high carbon biochar via slow pyrolysis process that can substantially yield more biochar, up to 37 mf wt. % in this study. Since the fixed carbon content for both CS and CR biochar produced in any studied parameter were found to be more than 75 mf wt. %, it is suggested that biochar from cassava wastes is suitable for carbon sequestration. |
| first_indexed | 2024-04-24T14:57:53Z |
| format | Article |
| id | doaj.art-9557be44e1b044b0bc7cba4219489c9e |
| institution | Directory Open Access Journal |
| issn | 2079-2115 2079-2123 |
| language | English |
| last_indexed | 2024-04-24T14:57:53Z |
| publishDate | 2012-01-01 |
| publisher | Babol Noshirvani University of Technology |
| record_format | Article |
| series | Iranica Journal of Energy and Environment |
| spelling | doaj.art-9557be44e1b044b0bc7cba4219489c9e2024-04-02T17:54:36ZengBabol Noshirvani University of TechnologyIranica Journal of Energy and Environment2079-21152079-21232012-01-013Special Issue on Environmental Technology6065Slow Pyrolysis of Cassava Wastes for Biochar Production and CharacterizationNurhidayah Mohamed NoorAdilah ShariffNurhayati AbdullahProduction of biochar from slow pyrolysis of biomass is a promising carbon negative procedure since it removes the net carbon dioxide in the atmosphere and produce recalcitrant carbon suitable for sequestration in soil. Biochar production can vary significantly with the pyrolysis parameter. This study investigated the impact of temperature and heating rate on the yield and properties of biochar derived from cassava plantations residues which are cassava stem (CS) and cassava rhizome (CR). The pyrolysis temperatures ranged from 400°C to 600°C while the heating rate parameter was varied from 5°C/min to 25°C/min. The experiment was conducted using the lab scale slow pyrolysis system. The increment of temperature and heating rate of slow pyrolysis for both cassava wastes had raised the fixed carbon content of the biochar but decreased the biochar yield. More biochar was produced at lower temperature and lower heating rate. Temperature gave more influence on the biochar yield as compared to the heating rate parameter. The highest biochar yield of more than 35 mf wt. % can be obtained from both CS and CR at 400°C and heating rate of 5°C/min. From the proximate analysis, the results showed that cassava wastes contain high percentage of volatile matter which is more than 80 mf wt. %. Meanwhile, the biochar produced from cassava wastes contain high percentage of fixed carbon which is about 5−8 times higher than their raw samples. This suggested that, it is a good step to convert CS and CR into high carbon biochar via slow pyrolysis process that can substantially yield more biochar, up to 37 mf wt. % in this study. Since the fixed carbon content for both CS and CR biochar produced in any studied parameter were found to be more than 75 mf wt. %, it is suggested that biochar from cassava wastes is suitable for carbon sequestration.http://www.ijee.net/Journal/ijee/vol3/no5/10.pdfBiocharBiomassCassava rhizomeCassava stemPyrolysis |
| spellingShingle | Nurhidayah Mohamed Noor Adilah Shariff Nurhayati Abdullah Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization Iranica Journal of Energy and Environment Biochar Biomass Cassava rhizome Cassava stem Pyrolysis |
| title | Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization |
| title_full | Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization |
| title_fullStr | Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization |
| title_full_unstemmed | Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization |
| title_short | Slow Pyrolysis of Cassava Wastes for Biochar Production and Characterization |
| title_sort | slow pyrolysis of cassava wastes for biochar production and characterization |
| topic | Biochar Biomass Cassava rhizome Cassava stem Pyrolysis |
| url | http://www.ijee.net/Journal/ijee/vol3/no5/10.pdf |
| work_keys_str_mv | AT nurhidayahmohamednoor slowpyrolysisofcassavawastesforbiocharproductionandcharacterization AT adilahshariff slowpyrolysisofcassavawastesforbiocharproductionandcharacterization AT nurhayatiabdullah slowpyrolysisofcassavawastesforbiocharproductionandcharacterization |