Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends
Biomass is a promising alternative for the reduction of global dependency on fossil fuels. However, there are some issues with the direct application of raw biomass such as high moisture content, low heating value, and poor grindability. To alleviate the problems, biomass-derived biocoal is introduc...
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doaj-1e243cd8f3294668ba960fbb6fd75ce32021-06-13T04:39:42ZengElsevierEnergy Conversion and Management: X2590-17452021-06-0110100072Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blendsNadly Aizat Nudri0Wan Azlina Wan Abdul Karim Ghani1Robert Thomas Bachmann2B.T. Hang Tuah Baharudin3Denny K.S. Ng4Mohamad Syazarudin Md Said5Sustainable Process Engineering Research Centre (SPERC), Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, MalaysiaSustainable Process Engineering Research Centre (SPERC), Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia; Institute of Plantation Studies, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia; Corresponding author at: Sustainable Process Engineering Research Centre (SPERC), Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia.Section of Environmental Engineering Technology, Universiti Kuala Lumpur Malaysian Institute of Chemical and Bioengineering Technology (UniKL MICET), 78000 Alor Gajah, Melaka, MalaysiaDepartment of Mechanical Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, MalaysiaSchool of Engineering and Physical Sciences, Heriot-Watt University Malaysia, No 1 Jalan Venna P5/2, Precinct 5, 62200 Putrajaya, MalaysiaSustainable Process Engineering Research Centre (SPERC), Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, MalaysiaBiomass is a promising alternative for the reduction of global dependency on fossil fuels. However, there are some issues with the direct application of raw biomass such as high moisture content, low heating value, and poor grindability. To alleviate the problems, biomass-derived biocoal is introduced and utilised as fuel in power plants. Oil palm trunk biocoal (OPTC) is produced from pyrolysis of oil palm trunk biomass (OPTB) in a top-lit, updraft reactor at a constant air flowrate of 4.63 L/min and maximum temperature of 550 °C. OPTC is co-combusted at temperatures between 600 and 900 °C with sub-bituminous coal (SBC). Pollutant emission and ash production from combustion of fuel blends containing 20% and 50% biocoal are analysed and compared with pure SBC, OPTB and OPTC. NOx and SO2 emission profiles from all tested fuel blends are well below the limits imposed under Environmental Quality (Clean Air) Regulation 2014 of 296 and 190 ppm respectively. Response surface methodology (RSM) analysis indicates that the operation of combustion is optimised with 92.16% efficiency at 774 °C and air flowrate of 16.6 SCFH to emit 16.38% CO2, and the findings are validated against experimental results. The optimised combustion process produces ash with 67.9% silicon compounds.http://www.sciencedirect.com/science/article/pii/S2590174520300441BiocoalOil palm trunkCo-combustionPyrolysisOptimisation |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Nadly Aizat Nudri Wan Azlina Wan Abdul Karim Ghani Robert Thomas Bachmann B.T. Hang Tuah Baharudin Denny K.S. Ng Mohamad Syazarudin Md Said |
spellingShingle |
Nadly Aizat Nudri Wan Azlina Wan Abdul Karim Ghani Robert Thomas Bachmann B.T. Hang Tuah Baharudin Denny K.S. Ng Mohamad Syazarudin Md Said Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends Energy Conversion and Management: X Biocoal Oil palm trunk Co-combustion Pyrolysis Optimisation |
author_facet |
Nadly Aizat Nudri Wan Azlina Wan Abdul Karim Ghani Robert Thomas Bachmann B.T. Hang Tuah Baharudin Denny K.S. Ng Mohamad Syazarudin Md Said |
author_sort |
Nadly Aizat Nudri |
title |
Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends |
title_short |
Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends |
title_full |
Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends |
title_fullStr |
Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends |
title_full_unstemmed |
Co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends |
title_sort |
co-combustion of oil palm trunk biocoal/sub-bituminous coal fuel blends |
publisher |
Elsevier |
series |
Energy Conversion and Management: X |
issn |
2590-1745 |
publishDate |
2021-06-01 |
description |
Biomass is a promising alternative for the reduction of global dependency on fossil fuels. However, there are some issues with the direct application of raw biomass such as high moisture content, low heating value, and poor grindability. To alleviate the problems, biomass-derived biocoal is introduced and utilised as fuel in power plants. Oil palm trunk biocoal (OPTC) is produced from pyrolysis of oil palm trunk biomass (OPTB) in a top-lit, updraft reactor at a constant air flowrate of 4.63 L/min and maximum temperature of 550 °C. OPTC is co-combusted at temperatures between 600 and 900 °C with sub-bituminous coal (SBC). Pollutant emission and ash production from combustion of fuel blends containing 20% and 50% biocoal are analysed and compared with pure SBC, OPTB and OPTC. NOx and SO2 emission profiles from all tested fuel blends are well below the limits imposed under Environmental Quality (Clean Air) Regulation 2014 of 296 and 190 ppm respectively. Response surface methodology (RSM) analysis indicates that the operation of combustion is optimised with 92.16% efficiency at 774 °C and air flowrate of 16.6 SCFH to emit 16.38% CO2, and the findings are validated against experimental results. The optimised combustion process produces ash with 67.9% silicon compounds. |
topic |
Biocoal Oil palm trunk Co-combustion Pyrolysis Optimisation |
url |
http://www.sciencedirect.com/science/article/pii/S2590174520300441 |
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