Mechanical durability and combustion characteristics of pellets from biomass blends

Gil, M.V.; Oulego, Paula; Casal, M.D.; Pevida, C.; Pís, J.J.; Rubiera, F.

doi:10.1016/j.biortech.2010.06.062

Cited by 195 publications

(111 citation statements)

References 27 publications

Supporting

Mentioning

103

Contrasting

Unclassified

Order By: Relevance

“…The mechanical strength and attrition resistance of the adsorbent pellets was evaluated subjecting 10 pellets to 3000 revolutions at 35 rpm in a rotary drum equipped with two inner lifters (see [32] for further details). The hardness number of an activated carbon is usually measured as the change in weight, expressed as a percentage of a specific screen size fraction after the sample has been subjected to a mechanical test method (vibration, impact, rotary motion, or motion) [33,34].…”

Section: Adsorbent Preparation and Characterizationmentioning

confidence: 99%

CO 2 adsorbent pellets produced from pine sawdust: Effect of coal tar pitch addition

et al. 2015

Self Cite

View full text Add to dashboard Cite

The main drawbacks of developing carbon adsorbents from pine sawdust, an abundant biomass feedstock, are the low carbon yield of the process and the poor mechanical properties of the resulting carbons. In an attempt to overcome these limitations, the effect of the addition of coal tar pitch was assessed. Adsorbent pellets were produced from pine sawdust and coal tar pitch by activation with CO 2 . The preparation process was optimized by using as decision variables the carbon yield and the adsorption performance of the adsorbents in conditions representative of post-combustion capture applications (10% CO 2 at atmospheric pressure and at 50 °C). Subjecting the composite pellets to a pre-oxidation treatment with air increased the carbon yield of the production process, and also improved the adsorption kinetics and capacity of the final adsorbents. The prepared adsorbents present a high carbon yield, a superior mechanical resistance and a competitive adsorption performance.

show abstract

Section: Adsorbent Preparation and Characterizationmentioning

confidence: 99%

CO 2 adsorbent pellets produced from pine sawdust: Effect of coal tar pitch addition

et al. 2015

Self Cite

View full text Add to dashboard Cite

show abstract

“…The significant increase (p-value < 0.05) in pellet compressive strength could be due to increased interfacial area and inter-diffusion of rice husk and wood particles at high consolidation pressure and temperature resulting in stronger van der Waals forces, hydrogen bonding, and mechanical interlocking between particles (Mani et al 2006;Poddar et al 2014). The significant amount of lignin in rice husk may have also contributed to the strength of the pellets (Gil et al 2010). Lignin softens and helps the binding process during densification at high temperature and pressure (Kaliyan and Morey 2009).…”

Section: Resultsmentioning

confidence: 99%

Fuel Pellets from a Mixture of Rice Husk and Wood Particles

Bajo

Acda

2017

BioResources

View full text Add to dashboard Cite

The physical and mechanical properties were studied for fuel pellets made from a mixture of rice husk and Gmelina arborea wood particles. Pellet density, compressive strength, and abrasion resistance were used to evaluate pellet quality at various densification pressures and proportions of rice husk to wood particles. Pellet density and compressive strength increased from 850 to 1070 kg/m 3 and 0.61 to 1.2 MPa, respectively, when densification pressure increased from 80 to 120 MPa. The abrasion resistance for all pellet samples in this study was < 2.0%. Proximate analyses of the fuel pellets showed that volatile matter, fixed carbon, and heating value were relatively high and increased with a higher proportion of wood particles. Ash levels were also high (1.3 to 17.8%), which could cause problems with emission and deposition during thermal conversion. In general, except for the ash content, the physical and mechanical properties of pellets made from rice husk and G. arborea wood particles in this study were within the acceptable limits to be used as fuel pellets for industrial heat applications.

show abstract

“…Biomass pellets can be used in grate furnaces and fluidized bed combustion while offering advantages including easy storage and transport, lower pollution, lower dust levels, and higher heating values (Gil et al 2010). Therefore, the co-combustion of MSW and biomass briquettes can solve the aforementioned problems, further improve the calorific value of the blend fuels, and enhance the burning efficiency and stability of MSW (Tian et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Co-Combustion Characteristics and Kinetic Analyses of Biomass Briquette and Municipal Solid Waste in N2/O2 and CO2/O2 Atmospheres

et al. 2017

View full text Add to dashboard Cite

The thermal behavior of cotton straw briquette (CSB), municipal solid waste (MSW), and their blends was investigated using a thermogravimetric analyzer under N2/O2 and CO2/O2 atmospheres at 20 °C/min from an ambient temperature to 1000 °C. The kinetics and synergistic interaction between MSW and CSB in the co-combustion process were evaluated. The results indicated that MSW blended with CSB improved the ignition and burnout characteristics of the blends, while decreasing the comprehensive combustion characteristics index. The suitable proportions of CSB were less than 60% and 40% separately under 80N2/20O2 and 80CO2/20O2 atmospheres, respectively. The inhibitory effect of CO2 induced burnout temperature and residual mass increased, and the high-temperature stage reaction varied. Kinetic analysis of the blends indicated that blending with CSB could promote MSW combustion in the first reaction stage, while the second and third decomposition stages were complicated because of the synergistic interaction between MSW and CSB in the co-combustion process. The nth order reaction model fit the mass loss of theca-combustion process for the blends very well.

show abstract

Mechanical durability and combustion characteristics of pellets from biomass blends

Cited by 195 publications

References 27 publications

CO 2 adsorbent pellets produced from pine sawdust: Effect of coal tar pitch addition

CO 2 adsorbent pellets produced from pine sawdust: Effect of coal tar pitch addition

Fuel Pellets from a Mixture of Rice Husk and Wood Particles

Co-Combustion Characteristics and Kinetic Analyses of Biomass Briquette and Municipal Solid Waste in N2/O2 and CO2/O2 Atmospheres

Contact Info

Product

Resources

About