Production of Pellets from Furfural Residue and Sawdust Biomass: Effect of Moisture Content, Particle Size and a Binder on Pellet Quality and Energy Consumption

2021 ◽  
Author(s):  
Imran Ahmed ◽  
Asif Ali ◽  
Babar Ali ◽  
Mahdi Hassan ◽  
Sakhawat Hussain ◽  
...  
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Moisture Content ◽  
Pellet Quality ◽  
Furfural Residue ◽  
Effect Of Moisture

scholarly journals Pelletization of Biomass Feedstocks: Effect of Moisture Content, Particle Size and a Binder on Characteristics of Biomass Pellets

2021 ◽  
Author(s):  
Imran Ahmed ◽  
Asif Ali ◽  
Babar Ali ◽  
Mahdi Hassan ◽  
Sakhawat Hussain ◽  
...  
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Moisture Content ◽  
Particle Density ◽  
Value Added ◽  
Quality Parameters ◽  
Heating Value ◽  
Furfural Residue ◽  
Pellet Density

Abstract Pelletization of low value added biomass materials such as furfural residue (FR) and sawdust was performed by using a lab scale pelletizer. Effects of moisture content (MC), particle size and a binder on quality parameters (e.g. pellet density, strength and hardness) and on energy consumption were investigated. Quality of pellets was analysed and compared. MC was found to be the more dominant parameter affecting pellet density, strength and hardness of furfural residue pellets (FRPs) and sawdust pellets (SPs), followed by particle size and a binder. Highest particle density of 1.419 g/cm3 for FRPs (0.5–1.41 mm) and 1.243 g/cm3 for SPs (0.25–0.5 mm) was achieved at MC of 8% and 18%. Highest decrease in relaxed density was observed at MC of 13% for FRPs and 28% for SPs. True density of FRPs and SPs made from particles of 0.25–0.5 mm was found higher than 0.5–1.41 mm. The highest strength and hardness (6.29 MPa and 401.3 N/mm2) for FRPs was achieved at 5.5% MC and particles 0.25–0.5 mm. Optimum strength (6.03 MPa) and hardness (96.06 N/mm2) for SPs was obtained at 18% MC and particles 0.25–0.5 mm. The lowest energy consumption (16.16 J/g) for FRPs (0.25–0.5 mm) and 20.22 J/g for SPs (0.5–1.41 mm) was achieved at MC of 13% and 28%. Addition of binding agent to FR sawdust decreased energy consumption of FRPs and SPs. SPs quality was enhanced with the use of a binder. Heating value of FRPs were found higher than SPs.

Determination of grinding parameters of fenugreek seed

1970 ◽  
Vol 26 (1) ◽  
pp. 16 ◽  
Author(s):  
S Balasubramanian ◽  
Rajkumar Rajkumar ◽  
K K Singh
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Moisture Content ◽  
Specific Energy ◽  
Feed Rate ◽  
Average Particle Size ◽  
Specific Energy Consumption ◽  
Average Particle ◽  
Fenugreek Seeds ◽  
Fenugreek Seed

Experiment to identify ambient grinding conditions and energy consumed was conducted for fenugreek. Fenugreek seeds at three moisture content (5.1%, 11.5% and 17.3%, d.b.) were ground using a micro pulverizer hammer mill with different grinding screen openings (0.5, 1.0 and 1.5 mm) and feed rate (8, 16 and 24 kg h-1) at 3000 rpm. Physical properties of fenugreek seeds were also determined. Specific energy consumptions were found to decrease from 204.67 to 23.09 kJ kg-1 for increasing levels of feed rate and grinder screen openings. On the other hand specific energy consumption increased with increasing moisture content. The highest specific energy consumption was recorded for 17.3% moisture content and 8 kg h-1 feed rate with 0.5 mm screen opening. Average particle size decreased from 1.06 to 0.39 mm with increase of moisture content and grinder screen opening. It has been observed that the average particle size was minimum at 0.5 mm screen opening and 8 kg h-1 feed rate at lower moisture content. Bond’s work index and Kick’s constant were found to increase from 8.97 to 950.92 kWh kg-1 and 0.932 to 78.851 kWh kg-1 with the increase of moisture content, feed rate and grinder screen opening, respectively. Size reduction ratio and grinding effectiveness of fenugreek seed were found to decrease from 4.11 to 1.61 and 0.0118 to 0.0018 with the increase of moisture content, feed rate and grinder screen opening, respectively. The loose and compact bulk densities varied from 219.2 to 719.4 kg m-3 and 137.3 to 736.2 kg m-3, respectively.  

scholarly journals Influence of grinding method and grinding intensity of corn on mill energy consumption and pellet quality

2016 ◽  
Vol 70 (1) ◽  
pp. 67-72 ◽  
Author(s):  
Djuro Vukmirovic ◽  
Jovanka Levic ◽  
Aleksandar Fistes ◽  
Radmilo Colovic ◽  
Tea Brlek ◽  
...  
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Specific Energy ◽  
Specific Energy Consumption ◽  
Hammer Mill ◽  
Pellet Quality ◽  
Roller Mill ◽  
Grinding Method

In recent years there is an emerging trend of coarse grinding of cereals in production of poultry feed due to positive influence of coarse particles on poultry digestive system. Influence of grinding method (hammer mill vs. roller mill) and grinding intensity of corn (coarseness of grinding) on mill specific energy consumption and pellet quality was investigated. By decreasing grinding intensity of corn (coarser grinding), specific energy consumption of both hammer mill and roller mill was significantly decreased (p < 0.05). When comparing similar grinding intensities on hammer mill and roller mill (similar geometric mean diameter or similar particle size distribution), specific energy consumption was higher for the hammer mill. Pellet quality decreased with coarser grinding on hammer mill but, however, this effect was not observed for the roller mill. Generally, pellet quality was better when roller mill was used. It can be concluded that significant energy savings could be achieved by coarser grinding of corn before pelleting and by using roller mill instead of hammer mill. From the aspect of pellet quality, if coarser grinding is applied it is better to use roller mill, concerning that more uniform particle size distribution of corn ground on roller mill probably results in more uniform particle size distribution in pellets and this provides better pellet quality.

scholarly journals Effect of moisture content on specific cutting energy consumption in Corymbia citriodora and Eucalyptus urophylla woods

2017 ◽  
Vol 45 (113) ◽  
Author(s):  
Débora Fernanda Reis Nascimento ◽  
Luiz Eduardo de Lima Melo ◽  
José Reinaldo Moreira da Silva ◽  
Paulo Fernando Trugilho ◽  
Alfredo Napoli
Keyword(s):  
Energy Consumption ◽  
Moisture Content ◽  
Specific Cutting Energy ◽  
Eucalyptus Urophylla ◽  
Cutting Energy ◽  
Effect Of Moisture ◽  
Corymbia Citriodora

scholarly journals Pelleting of Pine and Switchgrass Blends: Effect of Process Variables and Blend Ratio on the Pellet Quality and Energy Consumption

Energies ◽  
2019 ◽  
Vol 12 (7) ◽  
pp. 1198 ◽  
Author(s):  
Jaya Tumuluru
Keyword(s):  
Energy Consumption ◽  
Moisture Content ◽  
Bulk Density ◽  
Process Conditions ◽  
Process Variables ◽  
Pellet Quality ◽  
High Moisture ◽  
Blend Ratio ◽  
Surface Models ◽  
Blend Ratios

The blending of woody and herbaceous biomass can influence pellet quality and the energy consumption of the process. This work aims to understand the pelleting characteristics of 2-inch top-pine residue blended with switchgrass at high moisture content. The process variables tested are blend moisture content, length-to-diameter (L/D) ratio in the pellet die, and the blend ratio. A flat die pellet mill was also used in this study. The pine and switchgrass blend ratios that were tested include: (1) 25% 2-inch top pine residue with 75% switchgrass; (2) 50% 2-inch top pine residue with 50% switchgrass; and (3) 75% 2-inch top pine residue with 25% switchgrass. The pelleting process conditions tested included the L/D ratio in the pellet die (i.e., 1.5 to 2.6) and the blend moisture content (20 to 30%, w.b.). Analysis of experimental data indicated that blending 25% switchgrass with 75% 2-inch top pine residue and 50% switchgrass with 50% 2-inch top pine residue resulted in pellets with a bulk density of > 550 kg/m3 and durability of > 95%. Optimization of the response surface models developed for process conditions in terms of product properties indicated that a higher L/D ratio of 2.6 and a lower blend-moisture content of 20% (w.b.) maximized bulk density and durability. Higher pine in the blends improved the pellet durability and reduced energy consumption.

Effect of Moisture Content on Fluidization of Wet Brown Coal Particle with Wide Particle Size Distribution

2014 ◽  
Vol 40 (4) ◽  
pp. 299-305 ◽  
Author(s):  
Kenichi Arima ◽  
Isao Torii ◽  
Ryuhei Takashima ◽  
Tetsuya Sawatsubashi ◽  
Masaaki Kinoshita ◽  
...  
Keyword(s):  
Particle Size ◽  
Moisture Content ◽  
Particle Size Distribution ◽  
Size Distribution ◽  
Brown Coal ◽  
Coal Particle ◽  
Wide Particle Size Distribution ◽  
Effect Of Moisture

Grinding Characteristics of Black Soybeans (Glycine max) at Varied Moisture Contents: Particle Size, Energy Consumption, and Grinding Kinetics

2014 ◽  
Vol 10 (3) ◽  
pp. 347-356 ◽  
Author(s):  
Youn Ju Lee ◽  
Jin Sil Yoo ◽  
Won Byong Yoon
Keyword(s):  
Particle Size ◽  
Energy Consumption ◽  
Moisture Content ◽  
Strong Dependence ◽  
Average Particle Size ◽  
Average Particle ◽  
Black Soybean ◽  
Moisture Contents ◽  
Soybean Powder ◽  
Grinding Kinetics

Abstract The effects of moisture content on the grinding characteristics of black soybeans were studied. The average particle size of the black soybean powder was smaller as the moisture content was decreased by drying. Bond’s constants and the work index showed lower values as the moisture content decreased. A sigmoid model accurately described the grinding kinetics of the black soybean powder (R2 > 0.90). The parameters in the sigmoidal models were useful to explain the effect of moisture content during grinding. However, at higher moisture contents, the sigmoid model did not accurately fit the grinding kinetics. The grinding characteristics of black soybeans showed a strong dependence on moisture content. Adjusting the moisture contents of black soybeans using a pretreatment such as drying is very important to control the grinding characteristics, including the energy consumption and the average particle size, during grinding.

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