2020
DOI: 10.21577/0103-5053.20190277
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Pyrolysis of the Caupi Bean Pod (Vigna unguiculata): Characterization of Biomass and Bio-Oil

Abstract: The use of agricultural residues for the production of bio-oil is an important alternative to the use of fossil fuels. In this study, the Caupi bean pod (Vigna unguiculata) was characterized and used as biomass in the production of bio-oil. This biomass was evaluated in terms of physicochemical, morphological (scanning electron microscopy (SEM)), and thermal (thermogravimetric analysis (TGA), differential scanning calorimetry (DSC)) characterization, lignocellulosic composition, and pyrolysis processes. The py… Show more

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Cited by 8 publications
(6 citation statements)
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References 39 publications
(47 reference statements)
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“…For all experiments, the drag gas used was nitrogen (flow of 1.0 mL min –1 ), the reactor’s internal temperature at 500 °C at a heating rate of 30 °C min –1 . Operation conditions were defined based on an earlier work, which investigated pyrolysis under several operational conditions using this same equipment …”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…For all experiments, the drag gas used was nitrogen (flow of 1.0 mL min –1 ), the reactor’s internal temperature at 500 °C at a heating rate of 30 °C min –1 . Operation conditions were defined based on an earlier work, which investigated pyrolysis under several operational conditions using this same equipment …”
Section: Methodsmentioning
confidence: 99%
“…Operation conditions were defined based on an earlier work, which investigated pyrolysis under several operational conditions using this same equipment. 35 After the pyrolysis, the retained biochar was weighed and stored, the liquid fraction was recovered in condenser tubes, and the yield of bio-oil and the aqueous fraction was quantified. The noncondensable gases produced in the reaction were calculated by the difference of the previous fractions, making a total of 100 (weight %) of the three products: solid (w %) + liquid (w %) + gases (w %).…”
Section: Thermogravimetric Analysis (Tga)mentioning
confidence: 99%
“…To estimate the primary energy potential (Equation ( 3)) of straw resources, we used the technical straw potential based on Equation ( 2), moisture content (MC) and the lower heating values (LHV). The MC and LHV values of the crop straws were obtained from earlier published literatures [32,35,[62][63][64][65][66]. It is important to note that straw biomass can play a significant role in bioenergy generation [67] hence the need to estimate its energy potential.…”
Section: Estimation Of Energy Potential Of Straw Resourcesmentioning
confidence: 99%
“…These experiments were conducted in a laboratory scale pyrolysis equipment; the scheme of the pyrolysis reactor ( Fig. 1) was described by Santos et al (2020). The reactor, composed of stainless steel, has two input valves, one at the top where the biomass is inserted and another at the side for the entrance of nitrogen flow; nitrogen gas is used as an inert gas, thus preventing combustion from occurring, and an output valve for the passage of the volatiles.…”
Section: Pyrolysis Processmentioning
confidence: 99%
“…The TG analysis was used in this work aiming at optimizing the pyrolysis' conditions because this allows the evaluation of mass-loss rates that occur in biomasses when temperatures are varied (Santos et al 2020). The study of the thermal degradation behavior of the seeds and residues of Moringa oleifera Lam.…”
Section: Characterization Of Biomassmentioning
confidence: 99%