Mass and energy balance of the carbonization of babassu nutshell as affected by temperature

Protásio, Thiago de Paula; Trugilho, Paulo Fernando; Napoli, Alfredo; Silva, Marcela Gomes da; Couto, Allan Motta

doi:10.1590/s0100-204x2014000300005

Cited by 16 publications

(16 citation statements)

References 19 publications

(34 reference statements)

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“…This value is similar to that obtained for the carbonization of babassunutshell25.8% [32] and shows the potential of fixed carbon production through the slow pyrolysis of babassu nut residues. The pyrolysis conditions are an important role in the development of the rudimentary pore structure in the biochar, through the release of volatiles from the carbon matrix.…”

Section: Yield Of Babassu Endocarp Biocharsupporting

confidence: 86%

Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Salgado

Abioye

Junoh

et al. 2018

IOP Conf. Ser.: Earth Environ. Sci.

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Abstract. Babassu endocarp were used to prepare activated carbons by physical activation via microwave radiation for the first time. The pyrolysis temperature was 600°C and the derived biochar were activated in CO 2atmosphere at 700, 750 and 800°C for 30 min. The material was characterized using scanning electron microscopy (SEM). The porous properties of the activated carbons obtained including the Brunauer-Emmett-Teller (BET) surface area, pore volume, and average pore diameter were determined by nitrogen adsorption isotherms at 77.32 K. The experimental results showed that most pores occurred during the activation predominantly as micropores. Endocarp babassu can be used as precursor to produce activated carbon with a rather well-developed porosity by pyrolysis and physical activation by two-steps with CO2 activation via microwaves radiation. The activated carbon, with a low production cost, could be suitable for applications in gaseous pollutant adsorption, adsorb iodine, methylene blue, and residual chlorine.

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Section: Yield Of Babassu Endocarp Biocharsupporting

confidence: 86%

Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Salgado

Abioye

Junoh

et al. 2018

IOP Conf. Ser.: Earth Environ. Sci.

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“…The babassu residues can contribute significantly to bioenergy production, and the results presented leads to the important economic development, adding value to this product. 63 In their other work, Protásio et al 136 evaluated the carbonization yield of babassu nutshell and the influence of the final temperatures on the energy losses involved in this process. The carbonization process was carried out in an electric oven with a water-cooled condenser and a collection vessel for vapors (pyroligneous liquid).…”

Section: Pyrolysismentioning

confidence: 99%

“…It was concluded that the babassu nutshell is appropriate for charcoal production. 136 For Vinhal et al 137 the study of the babassu palm fruits has great economic importance. The authors observed that almond oil can be used as a fuel in biodiesel production, and in the food and cosmetics industries, as well as other parts of this fruit.…”

Section: Pyrolysismentioning

confidence: 99%

Biofuels from oilseed fruits using different thermochemical processes: opportunities and challenges

Cruz

Silva

et al. 2020

Biofuels Bioprod Bioref

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The characterization of the physical-chemical properties and the thermal behavior of oilseed fruits for biofuels production has gained interest in the scientific community and society more generally, in particular with regard to their use as partial replacements for fossil fuels and for the possible reduction of air pollutants that cause problems for human health, animals, and plants. These oilseed fruits, which are rich in lipids, triglycerides, fatty acids, carotenoids, and other greasy compounds, can be transformed into solid, liquid, and gaseous products by different thermochemical conversion processes (conventional combustion, pyrolysis, oxy-fuel combustion, gasification and transesterification). This review investigates the different oleaginous feedstocks commonly found in the forests and plantations of Brazil -for example, olive stones, palm fruits, babassu coconut, macauba fruits, tucumã seeds and soybeans, and the respective residues generated from biofuel production and manufacturing processes. The main opportunities and challenges associated with the use of biofuels produced from these oilseed fruits lie in the fact that internal combustion engines using fossil fuels do not need to undergo modifications and mechanical adaptations to operate, and there is no corrosion risk and / or deterioration of metallic parts. Biofuels produce less greenhouse gas, or their pollution is considered neutral. Finally, the native forests of Brazil and the world present a vast number of different oleaginous species that still need be studied because they have excellent potential to be used as biofuels, as they are renewable energy sources and are sustainably eco-friendly.

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“…Therefore, studies on the use of alternatives biomass, for example, the babassu nut waste, have great potential to be used for energy generation (PROTÁSIO et al, 2014a(PROTÁSIO et al, , 2014b(PROTÁSIO et al, , 2014cREIS et al, 2015). Babassu nutshell showed a high basic density and a suitable lignin content for the sustainable production of bioenergy and charcoal (PROTÁSIO et al, 2014a).…”

Section: Introductionmentioning

confidence: 99%

Combustion of Biomass and Charcoal Made From Babassu Nutshell

Protásio

Guimarães

Mirmehdi

et al. 2017

CERNE

Self Cite

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ABSTRACT:In recent years, studies have examined the use of lignocellulosic wastes for energy generation. However, there is a lack of information on the combustibility of the residual biomass, especially the bark and charcoal of babassu nut. In this study, thermogravimetric analysis (TGA), differential thermal analysis (DTA) and differential scanning calorimetry (DSC) were used to achieve the following objectives: to evaluate the combustion of the residual biomass from the babassu nut; to evaluate the combustion of charcoal produced from this biomass, considering different final carbonization temperatures; and to determine the effect of the final carbonization temperature on the thermal stability of charcoal and on its performance in combustion. Thermal analyses were performed in synthetic air. In order to evaluate the characteristics of charcoal combustion and fresh biomass, the ignition temperature (T i ), the burnout temperature (T f ), characteristic combustion index (S), ignition index (D i ), time corresponding to the maximum combustion rate (t p ), and ignition time (t ig ) were considered. The combustion of the babassu nutshell occurred in three phases and it was observed that this lignocellulosic material is suitable for the direct generation of heat. The increase in the final carbonization temperature caused an increase in the ignition temperature, as well as in the burnout temperature, the ignition time and the time corresponding to the maximum combustion rate. The results indicate that the increase in the carbonization temperature causes a decrease in combustion reactivity and, consequently, the charcoals produced at lower temperatures are easier to ignite and exhibit better performance in ignition.COMBUSTÃO DA BIOMASSA E DO CARVÃO VEGETAL DA CASCA DO COCO BABAÇU RESUMO: Nos últimos anos, pesquisadores têm analisado o uso de resíduos lignocelulósicos para geração de energia. No entanto, há uma falta de informação sobre a combustibilidade da biomassa residual, especialmente a casca e o carvão vegetal do coco babaçu. Neste estudo foram utilizadas as análises termogravimétricas (TGA), térmica diferencial (DTA) e de calorimetria exploratória diferencial (DSC) para: avaliar a combustão da biomassa residual do coco babaçu; avaliar a combustão do carvão vegetal produzido a partir dessa biomassa, considerando diferentes temperaturas finais de carbonização; e verificar o efeito da temperatura final de carbonização na estabilidade térmica do carvão vegetal e no seu desempenho na combustão. As análises térmicas foram realizadas em atmosfera de ar sintético. Para avaliar as características da combustão do carvão vegetal e da biomassa in natura foi considerada a temperatura de ignição (Ti), a temperatura final da combustão (Tf), o índice característico da combustão (S), o índice de ignição (Di), o tempo correspondente à máxima taxa de combustão (tp) e o tempo de ignição (tig). A combustão da casca do coco babaçu ocorreu em três fases distintas e observou-se que esse material lignocelulósico apresenta aptidão para ...

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Mass and energy balance of the carbonization of babassu nutshell as affected by temperature

Cited by 16 publications

References 19 publications

Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Preparation of activated carbon from babassu endocarpunder microwave radiation by physical activation

Biofuels from oilseed fruits using different thermochemical processes: opportunities and challenges

Combustion of Biomass and Charcoal Made From Babassu Nutshell

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