Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk

To help better utilize corn stalk (CS), pyrolysis behavior of materials from different parts of the CS including corn stalk without pith, corn root, and corn leaf were analyzed using thermogravimetric analysis (TGA) at heating rates of 5, 10, 20, and 25 °C/min. The apparent activation energies deter...

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Main Authors: Siwei Huang, Qinglin Wu, Dingguo Zhou, Runzhou Huang
Format: Article
Language:English
Published: North Carolina State University 2015-02-01
Series:BioResources
Subjects:
Online Access:http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_2_2020_Huang_Thermal_Decomposition_Corn_Stalk
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author Siwei Huang
Qinglin Wu
Dingguo Zhou
Runzhou Huang
author_facet Siwei Huang
Qinglin Wu
Dingguo Zhou
Runzhou Huang
author_sort Siwei Huang
collection DOAJ
description To help better utilize corn stalk (CS), pyrolysis behavior of materials from different parts of the CS including corn stalk without pith, corn root, and corn leaf were analyzed using thermogravimetric analysis (TGA) at heating rates of 5, 10, 20, and 25 °C/min. The apparent activation energies determined by the Friedman method for corn stalk without pith, corn root, and corn leaf were in the range of 26.4 to 103.6 kJ/mol, 37.6 to 69.5 kJ/mol, and 35.0 to 103.9 kJ/mol, respectively, depending on the conversion. The main thermal decomposition occurred within a temperature range of 200 to 350 °C (±10 °C). Most of the volatile materials decomposed at less than a 0.8 conversion rate. At greater than a 0.8 conversion rate, the remaining material was mainly char, and the decomposition of char proceeded at higher conversion rates. Different pyrolysis characteristics in the CS indicated that different treatments should be chosen according to different parts for achieving the optimum conversion rate in practical applications.
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spelling doaj.art-321d970963824195ae5c59ec5a6d49ae2022-12-22T03:12:21ZengNorth Carolina State UniversityBioResources1930-21261930-21262015-02-011022020203110.15376/biores.10.2.2020-2031Thermal Decomposition Properties of Materials from Different Parts of Corn StalkSiwei Huang0Qinglin Wu1Dingguo Zhou2Runzhou Huang3College of Materials Science and Engineering, Nanjing Forestry University, Long Pan Road, 210037, China; ChinaSchool of Renewable Natural Resources, Louisiana State University Agricultural Center, Baton Rouge, LA 70803, USA; United StatesCollege of Materials Science and Engineering, Nanjing Forestry University, Long Pan Road, 210037, China; ChinaCollege of Materials Science and Engineering, Nanjing Forestry University, Long Pan Road, 210037, China; ChinaTo help better utilize corn stalk (CS), pyrolysis behavior of materials from different parts of the CS including corn stalk without pith, corn root, and corn leaf were analyzed using thermogravimetric analysis (TGA) at heating rates of 5, 10, 20, and 25 °C/min. The apparent activation energies determined by the Friedman method for corn stalk without pith, corn root, and corn leaf were in the range of 26.4 to 103.6 kJ/mol, 37.6 to 69.5 kJ/mol, and 35.0 to 103.9 kJ/mol, respectively, depending on the conversion. The main thermal decomposition occurred within a temperature range of 200 to 350 °C (±10 °C). Most of the volatile materials decomposed at less than a 0.8 conversion rate. At greater than a 0.8 conversion rate, the remaining material was mainly char, and the decomposition of char proceeded at higher conversion rates. Different pyrolysis characteristics in the CS indicated that different treatments should be chosen according to different parts for achieving the optimum conversion rate in practical applications.http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_2_2020_Huang_Thermal_Decomposition_Corn_StalkPyrolysisCorn stalkDifferent partsApparent activation energyTGA
spellingShingle Siwei Huang
Qinglin Wu
Dingguo Zhou
Runzhou Huang
Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk
BioResources
Pyrolysis
Corn stalk
Different parts
Apparent activation energy
TGA
title Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk
title_full Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk
title_fullStr Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk
title_full_unstemmed Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk
title_short Thermal Decomposition Properties of Materials from Different Parts of Corn Stalk
title_sort thermal decomposition properties of materials from different parts of corn stalk
topic Pyrolysis
Corn stalk
Different parts
Apparent activation energy
TGA
url http://ojs.cnr.ncsu.edu/index.php/BioRes/article/view/BioRes_10_2_2020_Huang_Thermal_Decomposition_Corn_Stalk
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AT qinglinwu thermaldecompositionpropertiesofmaterialsfromdifferentpartsofcornstalk
AT dingguozhou thermaldecompositionpropertiesofmaterialsfromdifferentpartsofcornstalk
AT runzhouhuang thermaldecompositionpropertiesofmaterialsfromdifferentpartsofcornstalk