CO2 production from degraded woods via a novel integrated pyrolysis-combustion process

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Abstract

The process of combustion produces minimal amounts of CO2 for conventional radiocarbon dating, making it difficult to estimate the age of the archaeological wood. Thus, the objective of this paper is to introduce a novel integrated pyrolysis-combustion process that will maximize the production of CO2. Degraded wood samples were assumed to be archaeological samples for this study, namely Karas (Aquilaria malaccensis), Meranti (Shorea acuminate) and Setumpol (Hydnocarpus spp.) were used for this process. The process of CO2 production was optimized by the application of design of experiment (DOE) and response surface method. The mathematical model was examined using the analysis of variance (ANOVA) at 5% level of significance. The temperature during the pyrolysis process, retention time and flow rates for the carrier gas (argon) were found to have a positive influence on the production of CO2. A second-order model was obtained to predict the production of CO2 as a function of temperature, retention time and flow rate. Optimum conditions for the production of CO2 were obtained at a pyrolysis temperature of 300 °C, 20 min retention and 980, 984 and 987.6 ml/min argon flow rate for Karas, Meranti and Setumpol, respectively. The optimized yields of carbon dioxide produced were 82.57, 79.7 and 84% for Karas, Meranti and Setumpol, respectively. The different yields of carbon dioxide were due to the carbon content in the individual samples.

Original languageEnglish
Pages (from-to)72-80
Number of pages9
JournalJournal of Analytical and Applied Pyrolysis
Volume85
Issue number1-2
DOIs
Publication statusPublished - May 2009

Fingerprint

Wood
Pyrolysis
Argon
Flow rate
Carbon Dioxide
Carbon dioxide
Analysis of variance (ANOVA)
Design of experiments
Temperature
Carbon
Gases
Mathematical models

Keywords

  • ANOVA
  • Integrated pyrolysis-combustion
  • Radiocarbon dating
  • Response surface method

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

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title = "CO2 production from degraded woods via a novel integrated pyrolysis-combustion process",
abstract = "The process of combustion produces minimal amounts of CO2 for conventional radiocarbon dating, making it difficult to estimate the age of the archaeological wood. Thus, the objective of this paper is to introduce a novel integrated pyrolysis-combustion process that will maximize the production of CO2. Degraded wood samples were assumed to be archaeological samples for this study, namely Karas (Aquilaria malaccensis), Meranti (Shorea acuminate) and Setumpol (Hydnocarpus spp.) were used for this process. The process of CO2 production was optimized by the application of design of experiment (DOE) and response surface method. The mathematical model was examined using the analysis of variance (ANOVA) at 5{\%} level of significance. The temperature during the pyrolysis process, retention time and flow rates for the carrier gas (argon) were found to have a positive influence on the production of CO2. A second-order model was obtained to predict the production of CO2 as a function of temperature, retention time and flow rate. Optimum conditions for the production of CO2 were obtained at a pyrolysis temperature of 300 °C, 20 min retention and 980, 984 and 987.6 ml/min argon flow rate for Karas, Meranti and Setumpol, respectively. The optimized yields of carbon dioxide produced were 82.57, 79.7 and 84{\%} for Karas, Meranti and Setumpol, respectively. The different yields of carbon dioxide were due to the carbon content in the individual samples.",
keywords = "ANOVA, Integrated pyrolysis-combustion, Radiocarbon dating, Response surface method",
author = "N. Othman and Kamarudin, {Siti Kartom} and Yunus, {M. N Md} and {Sheikh Abdullah}, {Siti Rozaimah} and Zahira Yaakob",
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T1 - CO2 production from degraded woods via a novel integrated pyrolysis-combustion process

AU - Othman, N.

AU - Kamarudin, Siti Kartom

AU - Yunus, M. N Md

AU - Sheikh Abdullah, Siti Rozaimah

AU - Yaakob, Zahira

PY - 2009/5

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N2 - The process of combustion produces minimal amounts of CO2 for conventional radiocarbon dating, making it difficult to estimate the age of the archaeological wood. Thus, the objective of this paper is to introduce a novel integrated pyrolysis-combustion process that will maximize the production of CO2. Degraded wood samples were assumed to be archaeological samples for this study, namely Karas (Aquilaria malaccensis), Meranti (Shorea acuminate) and Setumpol (Hydnocarpus spp.) were used for this process. The process of CO2 production was optimized by the application of design of experiment (DOE) and response surface method. The mathematical model was examined using the analysis of variance (ANOVA) at 5% level of significance. The temperature during the pyrolysis process, retention time and flow rates for the carrier gas (argon) were found to have a positive influence on the production of CO2. A second-order model was obtained to predict the production of CO2 as a function of temperature, retention time and flow rate. Optimum conditions for the production of CO2 were obtained at a pyrolysis temperature of 300 °C, 20 min retention and 980, 984 and 987.6 ml/min argon flow rate for Karas, Meranti and Setumpol, respectively. The optimized yields of carbon dioxide produced were 82.57, 79.7 and 84% for Karas, Meranti and Setumpol, respectively. The different yields of carbon dioxide were due to the carbon content in the individual samples.

AB - The process of combustion produces minimal amounts of CO2 for conventional radiocarbon dating, making it difficult to estimate the age of the archaeological wood. Thus, the objective of this paper is to introduce a novel integrated pyrolysis-combustion process that will maximize the production of CO2. Degraded wood samples were assumed to be archaeological samples for this study, namely Karas (Aquilaria malaccensis), Meranti (Shorea acuminate) and Setumpol (Hydnocarpus spp.) were used for this process. The process of CO2 production was optimized by the application of design of experiment (DOE) and response surface method. The mathematical model was examined using the analysis of variance (ANOVA) at 5% level of significance. The temperature during the pyrolysis process, retention time and flow rates for the carrier gas (argon) were found to have a positive influence on the production of CO2. A second-order model was obtained to predict the production of CO2 as a function of temperature, retention time and flow rate. Optimum conditions for the production of CO2 were obtained at a pyrolysis temperature of 300 °C, 20 min retention and 980, 984 and 987.6 ml/min argon flow rate for Karas, Meranti and Setumpol, respectively. The optimized yields of carbon dioxide produced were 82.57, 79.7 and 84% for Karas, Meranti and Setumpol, respectively. The different yields of carbon dioxide were due to the carbon content in the individual samples.

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