Thermal behaviour of coal/biomass blends during co-pyrolysis
Investigations into the thermalbehaviour during co-pyrolysis of coal, biomass materials and coal/biomassblends prepared at different ratios (10:90, 20:80, 30:70 and 50:50) have been conducted using a thermogravimetric analysis (TGA) apparatus. Coal sample selected was Collie subbituminous coal from...
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my.utm.255472017-02-07T07:29:13Z http://eprints.utm.my/id/eprint/25547/ Thermal behaviour of coal/biomass blends during co-pyrolysis Ani, Farid Nasir Darus, Amer Nordin Hussain, Ahmad TJ Mechanical engineering and machinery Investigations into the thermalbehaviour during co-pyrolysis of coal, biomass materials and coal/biomassblends prepared at different ratios (10:90, 20:80, 30:70 and 50:50) have been conducted using a thermogravimetric analysis (TGA) apparatus. Coal sample selected was Collie subbituminous coal from Western Australia, while wood waste (WW) and wheat straw (WS) were used as biomass samples. Three thermal events were identified during the pyrolysis. The first two were dominated by the biomasspyrolysis, while the third was linked to the coalpyrolysis, which occurred at much higher temperatures. No interactions were seen between the coal and biomass during co-pyrolysis. The pyrolytic characteristics of the blends followed those of the parent fuels in an additive manner. Among the tested blends, 20:80 blends showed the lowest activation energies of 90.9 and 78.7 kJ mol-1 for coal/WW and coal/WS blends, respectively. It was also found that the optimum blend ratio for pyrolysis of coal/WS to be 50:50 with a high degradation rate in all thermal events and a higher mass loss over the course of the co-pyrolysis compared to coal/WW blends examined. The reaction orders in these experiments were found to be in the range of 0.21–1.60, thus having a significant effect on the overall reaction rate. Besides the pyrolysis of coal alone, the 50:50 coal/biomassblends had the highest reaction rate, ranging from 1×109 to 2×109 min-1. 2006 Conference or Workshop Item PeerReviewed Ani, Farid Nasir and Darus, Amer Nordin and Hussain, Ahmad (2006) Thermal behaviour of coal/biomass blends during co-pyrolysis. In: Regional Postgraduate Conference on Engineering and Science 2006, 2006, Skudai, Johor. http://dx.doi.org/10.1016/S0378-3820(03)00112-7 |
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TJ Mechanical engineering and machinery Ani, Farid Nasir Darus, Amer Nordin Hussain, Ahmad Thermal behaviour of coal/biomass blends during co-pyrolysis |
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Investigations into the thermalbehaviour during co-pyrolysis of coal, biomass materials and coal/biomassblends prepared at different ratios (10:90, 20:80, 30:70 and 50:50) have been conducted using a thermogravimetric analysis (TGA) apparatus. Coal sample selected was Collie subbituminous coal from Western Australia, while wood waste (WW) and wheat straw (WS) were used as biomass samples. Three thermal events were identified during the pyrolysis. The first two were dominated by the biomasspyrolysis, while the third was linked to the coalpyrolysis, which occurred at much higher temperatures. No interactions were seen between the coal and biomass during co-pyrolysis. The pyrolytic characteristics of the blends followed those of the parent fuels in an additive manner. Among the tested blends, 20:80 blends showed the lowest activation energies of 90.9 and 78.7 kJ mol-1 for coal/WW and coal/WS blends, respectively. It was also found that the optimum blend ratio for pyrolysis of coal/WS to be 50:50 with a high degradation rate in all thermal events and a higher mass loss over the course of the co-pyrolysis compared to coal/WW blends examined. The reaction orders in these experiments were found to be in the range of 0.21–1.60, thus having a significant effect on the overall reaction rate. Besides the pyrolysis of coal alone, the 50:50 coal/biomassblends had the highest reaction rate, ranging from 1×109 to 2×109 min-1. |
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Conference or Workshop Item |
author |
Ani, Farid Nasir Darus, Amer Nordin Hussain, Ahmad |
author_facet |
Ani, Farid Nasir Darus, Amer Nordin Hussain, Ahmad |
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Ani, Farid Nasir |
title |
Thermal behaviour of coal/biomass blends during co-pyrolysis |
title_short |
Thermal behaviour of coal/biomass blends during co-pyrolysis |
title_full |
Thermal behaviour of coal/biomass blends during co-pyrolysis |
title_fullStr |
Thermal behaviour of coal/biomass blends during co-pyrolysis |
title_full_unstemmed |
Thermal behaviour of coal/biomass blends during co-pyrolysis |
title_sort |
thermal behaviour of coal/biomass blends during co-pyrolysis |
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2006 |
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http://eprints.utm.my/id/eprint/25547/ http://dx.doi.org/10.1016/S0378-3820(03)00112-7 |
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