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Title: TGA-FTIR investigation of co-combustion characteristics of blends of hydrothermally carbonized oil palm biomass (EFB) and coal
Authors: Parshetti, G.K.
Quek, A.
Betha, R.
Balasubramanian, R. 
Keywords: Coal
EFB biomass
Pollutant emissions
Issue Date: 2014
Citation: Parshetti, G.K., Quek, A., Betha, R., Balasubramanian, R. (2014). TGA-FTIR investigation of co-combustion characteristics of blends of hydrothermally carbonized oil palm biomass (EFB) and coal. Fuel Processing Technology 118 : 228-234. ScholarBank@NUS Repository.
Abstract: Hydrothermally upgraded chars with improved density and friable characteristics were produced from oil-palm empty fruit bunch (EFB) at three temperatures (150, 250, and 350 C - denoted as H-150, H-250 and H-350). These chars were co-combusted with low rank Indonesian coal and with hydrothermally upgraded coal (HT-coal). The composition of major gaseous pollutants released from the co-combustion process with specific reference to CO, CO2, CH4, NO, and SO2 was studied in real-time using a thermogravimetric analyzer coupled with a Fourier transform infrared spectrometry. Combustion characteristic factor (CCF) was determined for a systematic analysis of the thermal decomposition process. In the co-combustion of hydrothermally treated biomass with coal and HT-coal, H-250 (50%)/HT-coal (50%) (CCF = 4.1 × 10- 7) fuel blend showed the highest CCF values i.e. the most efficient co-combustion process. Further analysis of the emission profiles of gaseous pollutants revealed that the co-combustion of 50% H-350 with 50% HT-coal by mass produced the lowest levels of gaseous pollutant emissions. Overall, a systematic combustion carried out in this study showed that co-combustion of hydrothermally upgraded EFB biochar with coal and HT-coal leads to environmental benefits, specifically reduced emissions of toxic (CO), acidic (NO and SO2) and greenhouse (CH4 and CO 2) gases. © 2013 Elsevier B.V.
Source Title: Fuel Processing Technology
ISSN: 03783820
DOI: 10.1016/j.fuproc.2013.09.010
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