Combustion of palm kernel shell in a fluidized bed: Optimization of biomass particle size and operating conditions

2014 ◽  
Vol 85 ◽  
pp. 800-808 ◽  
Author(s):  
Pichet Ninduangdee ◽  
Vladimir I. Kuprianov
Keyword(s):  
Particle Size ◽  
Fluidized Bed ◽  
Palm Kernel ◽  
Operating Conditions ◽  
Palm Kernel Shell ◽  
Biomass Particle Size

scholarly journals Effect of Particle Size and Temperature on Pyrolysis of Palm Kernel Shell

2018 ◽  
Vol 7 (4.35) ◽  
pp. 118
Author(s):  
Khairunnisa Kamarul Zaman ◽  
Vekes Balasundram ◽  
Norazana Ibrahim ◽  
Mohammad Dinie Muhaimin Samsudin ◽  
Rafiziana Md. Kasmani ◽  
...  
Keyword(s):  
Particle Size ◽  
Thermal Behaviour ◽  
Fixed Bed ◽  
Palm Kernel ◽  
Ash Content ◽  
Maximum Temperature ◽  
Pyrolysis Oil ◽  
Biomass Ash ◽  
Palm Kernel Shell ◽  
Biomass Particle Size

Pyrolysis is a viable solution to curb the issue of growing lignocellulosic waste in the world through conversion to potential biofuel and bio-based chemicals. This study focused on the effect of biomass particle size on the feedstock characterisation, biomass ash content, thermal behaviour and pyrolysis products yield. The particle size ranges studied were <0.355, 0.355 to 0.710. 0.710 to 1.00 and 1.00 to 2.00 mm. Thermal behaviour was analysed using thermogravimetric analyser, and pyrolysis experiments were conducted in a fixed-bed pyrolyzer. TGA results show smaller particle size maximum temperature shifted to a lower temperature. From ashing, the results indicated that ash content is the highest at the smallest particle size, <0.355mm (2.8 wt.%). The gaseous yield was the highest in dpA (<0.355 mm) at a temperature of 600°C. The highest pyrolysis oil yield (50.1 wt.%) occurred at 400°C from dpA (<0.355mm). The highest char yield (33.70 wt.%) occurred at 400°C obtained from the largest particle size, dpD (1-2mm).

Effect of Biomass Particle Size on the Fast Pyrolysis Characteristics of Palm Kernel Shell to Produce Biocrude-oil

2017 ◽  
Vol 13 (4) ◽  
pp. 55-63 ◽  
Author(s):  
Yeonseok Choi ◽  
Sangkyu Choi ◽  
Seockjoon Kim ◽  
Soyoung Han ◽  
Yeonwoo Jeong
Keyword(s):  
Particle Size ◽  
Fast Pyrolysis ◽  
Palm Kernel ◽  
Palm Kernel Shell ◽  
Pyrolysis Characteristics ◽  
Biomass Particle Size ◽  
Biocrude Oil

Effect of Particle Size on the Physical Properties of Activated Palm Kernel Shell for Supercapacitor Application

2020 ◽  
Vol 833 ◽  
pp. 129-133
Author(s):  
Ridwan Tobi Ayinla ◽  
John Ojur Dennis ◽  
Hasnah Bt Moh’d Zaid ◽  
Fahad Usman ◽  
Asfand Yar
Keyword(s):  
Particle Size ◽  
Activated Carbon ◽  
Palm Kernel ◽  
Physical Characteristics ◽  
Energy Storage Devices ◽  
Supercapacitor Application ◽  
Palm Kernel Shell ◽  
Storage Devices ◽  
Carbon Production ◽  
Effect Of Particle Size

The advantages of palm kernel shell (PKS) as a renewable and sustainable material for activated carbon production have been explored for various applications such as water treatment, pollutant, pesticide, and heavy metal adsorption. However, the full promises of this material for energy storage devices have not been duly studied. In this research, PKS is physically activated and the effect of particle size on the physical characteristics of the activated char was investigated. Pellet (3 mm), granules (0.4 mm), and powder (0.0075 mm) are the sizes considered in the experiment. The surface morphology, surface area, porosity and functional group at different sized was analyzed. Finally, a suitable particle size was recommended for the electrode material of supercapacitor based on the physical characteristics of the activated carbon.

Pilot-Scale Fluidized-Bed Co-gasification of Palm Kernel Shell with Sub-bituminous Coal

2015 ◽  
Vol 29 (9) ◽  
pp. 5894-5901 ◽  
Author(s):  
Carlos F. Valdés ◽  
Gloria Marrugo ◽  
Farid Chejne ◽  
Jorge I. Montoya ◽  
Carlos A. Gómez
Keyword(s):  
Fluidized Bed ◽  
Bituminous Coal ◽  
Palm Kernel ◽  
Pilot Scale ◽  
Palm Kernel Shell

Fluidization of palm kernel shell, palm oil fronds, and empty fruit bunches in a swirling fluidized bed gasifier

2016 ◽  
Vol 35 (2) ◽  
pp. 150-157 ◽  
Author(s):  
M. Shahbaz ◽  
S. Yusup ◽  
M. Y. Naz ◽  
S. A. Sulaiman ◽  
A. Inayat ◽  
...  
Keyword(s):  
Fluidized Bed ◽  
Palm Oil ◽  
Palm Kernel ◽  
Palm Kernel Shell ◽  
Empty Fruit Bunches ◽  
Fluidized Bed Gasifier

Simultaneous CO2 and SO2 Capture at Fluidized Bed Combustion Temperatures

2005 ◽  
Author(s):  
P. Sun ◽  
J. R. Grace ◽  
C. J. Lim ◽  
E. J. Anthony
Keyword(s):  
Particle Size ◽  
Reaction Time ◽  
Fluidized Bed ◽  
Co2 Capture ◽  
Atmospheric Pressure ◽  
Pressure Range ◽  
Operating Conditions ◽  
The Other ◽  
Fluidized Bed Combustion ◽  
So2 Capture

Simultaneous carbonation and sulphation have been investigated to simulate non-calcining conditions at FBC temperatures (750–850°C) using an atmospheric-pressure thermogravimetric reactor (TGR) with up to 80% CO2 in the gas stream to extend the pressure range of applicability of the results. This investigation was undertaken to provide insight on simultaneous carbonation and sulphation and to provide knowledge relevant to FBC, including PFBC, operations. Two calcium-based sorbents (one limestone and one dolomite) were tested with particles of diameter 212–250 μm and 500–600 to determine the effects of operating conditions such as temperature, CO2 and SO2 concentrations, particle size and reaction time on the sorbent performance. SO2 was found to impede CO2 capture; on the other hand, CO2 enhanced the capture of SO2. The calcination rate was also observed to decrease as a result of the presence of the sulphate layer.

Influence of Fluidization Velocity on Bed Defluidization in Fluidized Bed Combustors

2005 ◽  
Author(s):  
Mohammad R. Golriz ◽  
Morgan Eriksson ◽  
Marcus O¨hman ◽  
Anders Nordin ◽  
Rainer Backman
Keyword(s):  
Particle Size ◽  
Fluidized Bed ◽  
Large Scale ◽  
Particle Diameter ◽  
Operating Conditions ◽  
Biomass Combustion ◽  
Gas Velocity ◽  
Fluidization Velocity ◽  
Significant Difference ◽  
Superficial Gas Velocity

Effects of superficial gas velocity and bed particle size on bed defluidization during biomass combustion were investigated. Sampled bed particles from four different large-scale circulating- and bubbling fluidized bed combustors, using biomass as fuel, were collected and analyzed. The bed particles from each fluidized bed unit were divided into small and large particle size fractions. The results indicate no significant difference in elemental compositions between small and large coated bed particles but the ratio of coating thickness to the mean particle diameter was higher for the small particles compared to the large ones. Controlled fluidized bed agglomeration tests revealed strong influence from fluidization velocity on initial defluidization temperatures at lower velocities, but little effect at higher velocities. Influence of bed particle size on initial defluidization temperature varied depending on operating conditions. Finally, a model based on viscous flow sintering is proposed for the relation between agglomeration temperature and superficial gas velocity. The model predictions are in good agreement with experimental data.

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