Pyrolysis characteristics and kinetic parameters determination of biomass fuel powders by differential thermal gravimetric analysis (TGA/DTG)

El‐Sayed, Saad A.; Mostafa, Mohamed E.

doi:10.1016/j.enconman.2014.05.068

Cited by 255 publications

(79 citation statements)

References 33 publications

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“…The burnout temperature of fuel pellet made from para-rubber leaf litter from this experiment was higher than received from sugarcane bagasse and cotton stalks which reported by S.A. El-Sayed (500-520 o C) [10] but not difference from olive leaves as reported by A. Garcia-Maraver (650 o C) [12]. …”

Section: Resultssupporting

confidence: 65%

Thermal and Physical Characteristics of Fuel Pellets from Para-Rubber Leaf Litter

2016

6th International Conference on Biological, Chemical &Amp; Environmental Sciences (BCES-2016) August 8-9, 2016 Pattaya (Thailan

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Abstract-This study is to propose the thermo-physical properties of fuel pellets made from para-rubber leaf litter. The pararubber leaf litter from local plantation was collected, cleaned, dried and grinded to below 2 mm. The grinded raw material made to solid fuel pellet by a single unit pelletizer under difference condition of compressive pressure. Then pellets were analyzed the combustion behavior by thermogravimetric analysis (TGA). Moreover, the strength and L/D (length to diameter) ratio are also investigated. The results show that, the highest compressive strength was received at 300 psi of compaction pressure. The highest mass loss rate was obtained from 400 psi of compaction pressure at 327 o C,which lower than other compaction pressure conditions. Therefore, having higher compaction pressure provided easier ignition. The compaction pressure of 350 psi is provided highest burnout temperature with also highest amount of residue char for 705 o C and 9.57%, respectively. It can be concluded from the results of this study that the para-rubber leaf litter is suitable material for pelletization.

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Section: Resultssupporting

confidence: 65%

Thermal and Physical Characteristics of Fuel Pellets from Para-Rubber Leaf Litter

2016

6th International Conference on Biological, Chemical &Amp; Environmental Sciences (BCES-2016) August 8-9, 2016 Pattaya (Thailan

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“…The reaction orders of MSW were also close to that reported in the abovementioned studies. However, the activation energies and reaction orders of CSB were all lower than that obtained by El-Sayed and Mostafa (2014). The variability of kinetic parameters was affected by the differences in materials, operating facility, method, sample size, and others in experiments.…”

Section: Kinetic Analysismentioning

confidence: 74%

“…The fundamental rate equation of heterogeneous solid phase reactions could be described with the Arrhenius equation (Eq. 2) (Liu et al 2009;Lin et al 2014), (2) where t is the time, E is the apparent activation energy, A is the pre-exponential Arrhenius factor, R is the universal gas constant, T is the reaction temperature, is a function depended on the assumed reaction mechanism in the combustion process of biomass and MSW (Liu et al 2009;El-Sayed and Mostafa 2014), and n is the order of the reaction.…”

Section: Kinetic Theorymentioning

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

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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.

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“…Bio-oil has attracted immense attractions due to its high calorific value such as from Chlorella vulgaris residue (24.57−35.10 MJ/kg), Spirulina platensis residue (20.46 -33.62 MJ/kg), Chlorella sorokiniana CY1 residue (20.24 MJ/kg), and Nannochloropsis oceanica residue (32.33−39 MJ/kg) . As a comparison, these calorific values are higher than bio-oil produced from lignocellulose such as coconut shell (21.28 MJ/kg) and sugarcane bagasse (El-Sayed et al 2014).…”

Section: Introductionmentioning

confidence: 98%

Thermal Decomposition and Kinetic Studies of Pyrolysis of Spirulina Platensis Residue

Jamilatun

Budhijanto

Rochmadi

et al. 2017

Int. J. Renew. Energy Dev.

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Analysis of thermal decomposition and pyrolisis reaction kinetics of Spirulina platensis residue (SPR) was performed using Thermogravimetric Analyzer. Thermal decomposition was conducted with the heating rate of 10, 20, 30, 40 and 50oC/min from 30 to 1000oC. Thermogravimetric (TG), Differential Thermal Gravimetric (DTG), and Differential Thermal Analysis (DTA) curves were then obtained. Each of the curves was divided into 3 stages. In Stage I, water vapor was released in endothermic condition. Pyrolysis occurred in exothermic condition in Stage II, which was divided into two zones according to the weight loss rate, namely zone 1 and zone 2. It was found that gasification occurred in Stage III in endothermic condition. The heat requirement and heat release on thermal decomposition of SPR are described by DTA curve, where 3 peaks were obtained for heating rate 10, 20 and 30°C/min and 2 peaks for 40 and 50°C/min, all peaks present in Zone 2. As for the DTG curve, 2 peaks were obtained in Zone 1 for similar heating rates variation. On the other hand, thermal decomposition of proteins and carbohydrates is indicated by the presence of peaks on the DTG curve, where lignin decomposition do not occur due to the low lipid content of SPR (0.01wt%). The experiment results and calculations using one-step global model successfully showed that the activation energy (Ea) for the heating rate of 10, 20, 30, 40 and 50oC/min for zone 1 were 35.455, 41.102, 45.702, 47.892 and 47.562 KJ/mol, respectively, and for zone 2 were 0.0001428, 0.0001240, 0.0000179, 0.0000100 and 0.0000096 KJ/mol, respectively.Keywords: Spirulina platensis residue (SPR), Pyrolysis, Thermal decomposition, Peak, Activation energy.Article History: Received June 15th 2017; Received in revised form August 12th 2017; Accepted August 20th 2017; Available onlineHow to Cite This Article: Jamilatun, S., Budhijanto, Rochmadi, and Budiman, A. (2017) Thermal Decomposition and Kinetic Studies of Pyrolysis of Spirulina platensis Residue, International Journal of Renewable Energy Development 6(3), 193-201.https://doi.org/10.14710/ijred.6.3.193-201

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Pyrolysis characteristics and kinetic parameters determination of biomass fuel powders by differential thermal gravimetric analysis (TGA/DTG)

Cited by 255 publications

References 33 publications

Thermal and Physical Characteristics of Fuel Pellets from Para-Rubber Leaf Litter

Thermal and Physical Characteristics of Fuel Pellets from Para-Rubber Leaf Litter

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

Thermal Decomposition and Kinetic Studies of Pyrolysis of Spirulina Platensis Residue

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