The effect of microwave drying pretreatment on dry torrefaction of agricultural biomasses

Amer, M. Samir; Nour, Mohamed; Ahmed, Mahmoud; Nada, S.A.; Elwardany, Ahmed

doi:10.1016/j.biortech.2019.121400

Cited by 48 publications

(20 citation statements)

References 38 publications

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“…The remaining amount after the burning is the ash content. The fixed carbon is obtained by subtracting the ash content from the already existing amount before oxygen introduction [4,16]. The abovementioned temperature profile is shown in Figure 3 [4].…”

Section: Proximate Analysismentioning

confidence: 99%

“…The fixed carbon is obtained by subtracting the ash content from the already existing amount before oxygen introduction [4,16]. The abovementioned temperature profile is shown in Figure 3 [4]. Figure 4 shows a sample for a TGA analysis and how the proximate analysis can be obtained from it.…”

Section: Proximate Analysismentioning

confidence: 99%

“…These screening or cleaning processes will not be applicable in large-scale industries as they will cost time and money to swift through the huge biomass bulk. So, these TGA analysis sample for cotton stalks raw sample [4]. impurities have to be accepted as a drawback in large-scale industrial plants as they will slightly reduce the quality of the carbonized product.…”

Section: Ash Content (Ash)mentioning

confidence: 99%

“…Biomass is a term for organic waste that stems from plants and produced by photosynthesis making them all green energy sources. During their formation, biomasses already used the exact same amount of carbon dioxide they will later emit as exhaust, so they are usually referred to as a carbon neutral fuel when it is burnt [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

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Biomass Carbonization

Amer¹,

Elwardany²

2020

Renewable Energy - Resources, Challenges and Applications

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Carbonization is the art of reinventing the waste biomass into a carbonÀ/energy-rich charcoal. It redefines the principles of renewable energy and power generation. Char is produced by a pyrolysis process in which the biomass is heated in an inert atmosphere to high temperatures until absorbed volatiles are expelled thus enriching its heating value and energy content. Carbonization itself is an old process that is being used till now, but the renewed interest in it especially with biomass is because it opens new doors for commercial and scientific applications. The carbon can be extracted from the produced char to form the precious graphite and graphene. This chapter provides a general overview about slow pyrolysis processes including carbonization and the torrefaction process which is a mild carbonization process. The characterization of different biomass species and their effect on the carbonization process and the final product will be also discussed. Different carbonization processes and methodologies which vary in the process parameters will be addressed, and the most promising ones will be highlighted. An important addition to this chapter is the general design parameters, methodologies, and factors that must be taken into consideration when designing carbonization reactors for lab and industrial designs.

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Section: Proximate Analysismentioning

confidence: 99%

Section: Proximate Analysismentioning

confidence: 99%

Section: Ash Content (Ash)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biomass Carbonization

Amer¹,

Elwardany²

2020

Renewable Energy - Resources, Challenges and Applications

Self Cite

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“…Torrefaction is suggested to be an effective pretreatment method to reduce the cost of biomass provision and improve the fuel properties [4]. Torrefaction of biomass is a mild pyrolysis technology in which biomass is thermally pretreated at 200-300 °C in an inert and atmospheric pressure environment [1,[3][4][5][6][7][8][9][10][11][12][13]. Cellulose, hemicellulose, and lignin in lignocellulosic biomass, as well as carbohydrate, protein, and lipid in algal biomass are decomposed after torrefaction.…”

Section: Introductionmentioning

confidence: 99%

Experimental study on microwave torrefaction of lignocellulosic biomass

et al. 2020

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This paper presents preliminary research of lignocellulosic biomass torrefaction by using microwave heating. The experimental setup was developed using a microwave oven with 2.45 GHz frequency. The torrefaction effect was studied by varying the microwave power level (160-480 W) and reaction time (5-30 min). The two Polish biomass feedstock, agricultural residue (wheat straw) and energy crop (Miscanthus giganteus) were used in this study. Fuel properties like H/C and O/C ratio were assessed from elemental composition. Mass yield and energy yield of the torrefied fuels were also determined. It was found that higher microwave power levels contributed to higher heating rate and reaction temperature, and thus produced the torrefied biomass with higher heating value and lower H/C and O/C ratios.

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Recent Approaches in the Preparation of Various Biosorbents

Nithya¹,

Thirunavukkarasu²

2021

Biosorption for Wastewater Contaminants

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The effect of microwave drying pretreatment on dry torrefaction of agricultural biomasses

Cited by 48 publications

References 38 publications

Biomass Carbonization

Biomass Carbonization

Experimental study on microwave torrefaction of lignocellulosic biomass

Recent Approaches in the Preparation of Various Biosorbents

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