Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues
Thermogravimetric analysis was used to investigate oxy combustion of corncob and stover. The biomass samples were heated from ambient temperature to 900°C at different heating rates of 10, 30, and 50 K/min. Both biomass samples showed similar weight loss patterns with three zones, corresponding to d...
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| Format: | Article |
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Wiley
2015-01-01
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| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2015/304395 |
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| author | Poramate Sittisun Nakorn Tippayawong Darunee Wattanasiriwech |
| author_facet | Poramate Sittisun Nakorn Tippayawong Darunee Wattanasiriwech |
| author_sort | Poramate Sittisun |
| collection | DOAJ |
| description | Thermogravimetric analysis was used to investigate oxy combustion of corncob and stover. The biomass samples were heated from ambient temperature to 900°C at different heating rates of 10, 30, and 50 K/min. Both biomass samples showed similar weight loss patterns with three zones, corresponding to dehydration, devolatilization, and char combustion, but displayed different degradation temperatures. Increasing heating rate was found to shift the degradation patterns to higher temperatures. Decomposition rates of cob and stover may have been influenced by their lignocellulosic composition. The kinetic parameters of the thermal degradation process were also determined and compared using the Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose methods. Both methods were found to give similar values and patterns of activation energy against conversion fraction. The average values were found to be in similar magnitude to those reported in the literature, around 170 and 148 kJ/mol for cob and stover, respectively. |
| format | Article |
| id | doaj-art-baccf3851112431ba7291c765b9d7bc9 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-baccf3851112431ba7291c765b9d7bc92025-02-03T05:44:53ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422015-01-01201510.1155/2015/304395304395Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn ResiduesPoramate Sittisun0Nakorn Tippayawong1Darunee Wattanasiriwech2Department of Mechanical Engineering, Chiang Mai University, Chiang Mai 50200, ThailandDepartment of Mechanical Engineering, Chiang Mai University, Chiang Mai 50200, ThailandSchool of Science, Mae Fah Luang University, Chiang Rai 57100, ThailandThermogravimetric analysis was used to investigate oxy combustion of corncob and stover. The biomass samples were heated from ambient temperature to 900°C at different heating rates of 10, 30, and 50 K/min. Both biomass samples showed similar weight loss patterns with three zones, corresponding to dehydration, devolatilization, and char combustion, but displayed different degradation temperatures. Increasing heating rate was found to shift the degradation patterns to higher temperatures. Decomposition rates of cob and stover may have been influenced by their lignocellulosic composition. The kinetic parameters of the thermal degradation process were also determined and compared using the Flynn-Wall-Ozawa and Kissinger-Akahira-Sunose methods. Both methods were found to give similar values and patterns of activation energy against conversion fraction. The average values were found to be in similar magnitude to those reported in the literature, around 170 and 148 kJ/mol for cob and stover, respectively.http://dx.doi.org/10.1155/2015/304395 |
| spellingShingle | Poramate Sittisun Nakorn Tippayawong Darunee Wattanasiriwech Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues Advances in Materials Science and Engineering |
| title | Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues |
| title_full | Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues |
| title_fullStr | Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues |
| title_full_unstemmed | Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues |
| title_short | Thermal Degradation Characteristics and Kinetics of Oxy Combustion of Corn Residues |
| title_sort | thermal degradation characteristics and kinetics of oxy combustion of corn residues |
| url | http://dx.doi.org/10.1155/2015/304395 |
| work_keys_str_mv | AT poramatesittisun thermaldegradationcharacteristicsandkineticsofoxycombustionofcornresidues AT nakorntippayawong thermaldegradationcharacteristicsandkineticsofoxycombustionofcornresidues AT daruneewattanasiriwech thermaldegradationcharacteristicsandkineticsofoxycombustionofcornresidues |