Carbonization of ultra-fine woody powder using graphitization catalyst
This study aims to synthesize the bio-carbon with electro conductive properties by using graphitization catalyst synthesize from the woody carbon. In order to obtain the new functional bio-carbon, we prepared two initial powders. The two powdered samples (<Ⅰ>,<Ⅱ>) of cypr...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | Japanese |
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The Japan Society of Mechanical Engineers
2014-12-01
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| Series: | Nihon Kikai Gakkai ronbunshu |
| Subjects: | |
| Online Access: | https://www.jstage.jst.go.jp/article/transjsme/81/821/81_14-00411/_pdf/-char/en |
| _version_ | 1798018092366823424 |
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| author | Tohru NOBUKI Yuki OKUZUMI Minoru HATATE Hiroyasu TAKENAKA |
| author_facet | Tohru NOBUKI Yuki OKUZUMI Minoru HATATE Hiroyasu TAKENAKA |
| author_sort | Tohru NOBUKI |
| collection | DOAJ |
| description | This study aims to synthesize the bio-carbon with electro conductive properties by using graphitization catalyst synthesize from the woody carbon. In order to obtain the new functional bio-carbon, we prepared two initial powders. The two powdered samples (<Ⅰ>,<Ⅱ>) of cypress with different micro-structure were used for carbonization at 550～850°C and Fe-catalyzed carbonization at 850°C. The samples <Ⅰ> was prepared by pulverization of cypress chips with a wet cutter mill, which retained a micro-structure of coniferous wood . The sample <Ⅱ> was prepared by crushing the solid substance after drying the woody paste obtained by grinding the samples <Ⅰ> with a wet disk mill into ultra finely cellulose- fibrils. The carbon yield in carbonization and specific surface area were measured and XRD analysis was carried out for the carbonized products (chars) of both samples. The carbon yield for the sample <Ⅱ> was higher, and the specific surface area of the chars was considerably low compared with those for the samples <Ⅰ> and the chars. In Fe-catalyzed carbonization, it was confirmed that loaded Fe catalyst reacted with carbon atoms to form quantitatively Fe3C during carbonization and the crystallite size of char increased with increasing of amount of Fe loading up to 5 wt.%, but no definite difference in crystal structure between the chars of sample<Ⅰ> and <Ⅱ> was found. Fe3C contained in char could be easily removed by acid treatment. Specific surface area measured for the removed chars of sample <Ⅱ> was considerably high compared with that of carbonization without use of catalyst. |
| first_indexed | 2024-04-11T16:18:11Z |
| format | Article |
| id | doaj.art-eca1d5d9d64043f1adca219be08517cd |
| institution | Directory Open Access Journal |
| issn | 2187-9761 |
| language | Japanese |
| last_indexed | 2024-04-11T16:18:11Z |
| publishDate | 2014-12-01 |
| publisher | The Japan Society of Mechanical Engineers |
| record_format | Article |
| series | Nihon Kikai Gakkai ronbunshu |
| spelling | doaj.art-eca1d5d9d64043f1adca219be08517cd2022-12-22T04:14:27ZjpnThe Japan Society of Mechanical EngineersNihon Kikai Gakkai ronbunshu2187-97612014-12-018182114-0041114-0041110.1299/transjsme.14-00411transjsmeCarbonization of ultra-fine woody powder using graphitization catalystTohru NOBUKI0Yuki OKUZUMI1Minoru HATATE2Hiroyasu TAKENAKA3Kinki University, Faculty of EngineeringGraduate school of Kinki UniversityKinki University, Faculty of EngineeringKinki University, Faculty of EngineeringThis study aims to synthesize the bio-carbon with electro conductive properties by using graphitization catalyst synthesize from the woody carbon. In order to obtain the new functional bio-carbon, we prepared two initial powders. The two powdered samples (<Ⅰ>,<Ⅱ>) of cypress with different micro-structure were used for carbonization at 550～850°C and Fe-catalyzed carbonization at 850°C. The samples <Ⅰ> was prepared by pulverization of cypress chips with a wet cutter mill, which retained a micro-structure of coniferous wood . The sample <Ⅱ> was prepared by crushing the solid substance after drying the woody paste obtained by grinding the samples <Ⅰ> with a wet disk mill into ultra finely cellulose- fibrils. The carbon yield in carbonization and specific surface area were measured and XRD analysis was carried out for the carbonized products (chars) of both samples. The carbon yield for the sample <Ⅱ> was higher, and the specific surface area of the chars was considerably low compared with those for the samples <Ⅰ> and the chars. In Fe-catalyzed carbonization, it was confirmed that loaded Fe catalyst reacted with carbon atoms to form quantitatively Fe3C during carbonization and the crystallite size of char increased with increasing of amount of Fe loading up to 5 wt.%, but no definite difference in crystal structure between the chars of sample<Ⅰ> and <Ⅱ> was found. Fe3C contained in char could be easily removed by acid treatment. Specific surface area measured for the removed chars of sample <Ⅱ> was considerably high compared with that of carbonization without use of catalyst.https://www.jstage.jst.go.jp/article/transjsme/81/821/81_14-00411/_pdf/-char/encarbonizationgraphitization catalystultra-fine woody powder |
| spellingShingle | Tohru NOBUKI Yuki OKUZUMI Minoru HATATE Hiroyasu TAKENAKA Carbonization of ultra-fine woody powder using graphitization catalyst Nihon Kikai Gakkai ronbunshu carbonization graphitization catalyst ultra-fine woody powder |
| title | Carbonization of ultra-fine woody powder using graphitization catalyst |
| title_full | Carbonization of ultra-fine woody powder using graphitization catalyst |
| title_fullStr | Carbonization of ultra-fine woody powder using graphitization catalyst |
| title_full_unstemmed | Carbonization of ultra-fine woody powder using graphitization catalyst |
| title_short | Carbonization of ultra-fine woody powder using graphitization catalyst |
| title_sort | carbonization of ultra fine woody powder using graphitization catalyst |
| topic | carbonization graphitization catalyst ultra-fine woody powder |
| url | https://www.jstage.jst.go.jp/article/transjsme/81/821/81_14-00411/_pdf/-char/en |
| work_keys_str_mv | AT tohrunobuki carbonizationofultrafinewoodypowderusinggraphitizationcatalyst AT yukiokuzumi carbonizationofultrafinewoodypowderusinggraphitizationcatalyst AT minoruhatate carbonizationofultrafinewoodypowderusinggraphitizationcatalyst AT hiroyasutakenaka carbonizationofultrafinewoodypowderusinggraphitizationcatalyst |