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Energy efficiency of biomass from first-generation and second-generation bioethanol production with glycerin added during pellets production

Abstract

Abstract: Although mainly used in pharmaceutical applications, glycerin, a co-product of the biodiesel production chain, shows great potential for the production of solid biofuels, when added to the mixture of raw materials used in the production of briquettes and pellets. Therefore, this proposal aims to evaluate the energy yield of biomass from first-generation and second-generation bioethanol production, either sugar cane bagasse or lignocellulosic biomass (or both), with the addition of crude glycerin during pellet production. The experiments will be conducted in three trials at the Laboratory of Agricultural Machinery and Mechanization of FCAT - UNESP, Campus de Dracena-SP. The raw materials, sugar cane bagasse and lignocellulosic biomass (resulting from the production process of second-generation bioethanol from sugar cane), will be purchased from the Caeté Plant, while crude glycerin will be purchased from Cargill. In the first experiment, a completely randomized design will be used, analyzes will be performed with sugar cane bagasse mixed using four different glycerin percentages (0%, 1%, 2%, and 3% by mass), with 5 replications of 100-gram pellets. In the second experiment, a completely randomized design will be used, analyzes will be performed with lignocellulosic residual sugar cane biomass (resulting from second-generation bioethanol production), used in combination with four different glycerin percentages (0%, 1%, 2%, and 3% by mass), with 5 replications of 100-gram pellets. In the third experiment, the design will be completely randomized and arranged in a 3 × 4 factorial scheme, corresponding to three ratios of sugar cane bagasse to lignocellulosic biomass (resulting from second-generation bioethanol production) of 75:25, 50:50 and 25:75, respectively, and associated with four different glycerin percentages (0%, 1%, 2%, and 3% by mass), with 4 replications of 100-gram pellets. After the preparation of the materials they will be sent for characterization and realization of the physical, chemical, immediate, elementary, and energetic properties, and also the analysis of mechanical durability and quantitative determination of sugars will be completed. To evaluate the energy yield of the pellets, determinations will be made for three variables: upper calorific value, lower calorific value; and energy density. (AU)

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Scientific publications (4)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE ALMEIDA MOREIRA, BRUNO RAFAEL; CRUZ, VICTOR HUGO; DE LIMA, EDIVALDO WILSON; ALVES, LUCAS DA SILVA; MATOS LOPES, PAULO RENATO; VIANA, RONALDO DA SILVA. Fuel pellets with antioxidant of illicit cigarette's tobacco auto-generate less CO2, produce adequate flame and are toxicologically reliable. BIOMASS & BIOENERGY, v. 153, . (17/24234-1)
ALVES, LUCAS DA SILVA; DE ALMEIDA MOREIRA, BRUNO RAFAEL; VIANA, RONALDO DA SILVA; DIAS, EUSTAQUIO SOUZA; RINKER, DANNY LEE; PARDO-GIMENEZ, ARTURO; ZIED, DIEGO CUNHA. Spent mushroom substrate is capable of physisorption-chemisorption of CO2. Environmental Research, v. 204, n. A, . (17/24234-1, 15/15306-3, 19/19866-4)
MOREIRA, BRUNO RAFAEL DE ALMEIDA; CRUZ, VICTOR HUGO; PEREZ, JUAN FERNANDO; VIANA, RONALDO DA SILVA. Production of pellets for combustion and physisorption of CO2 from hydrothermal carbonization of food waste - Part I: High-performance solid biofuels. JOURNAL OF CLEANER PRODUCTION, v. 319, . (17/24234-1)
ALVES, LUCAS DA SILVA; MOREIRA, BRUNO RAFAEL DE ALMEIDA; VIANA, RONALDO DA SILVA; PARDO-GIMENEZ, ARTURO; DIAS, EUSTAQUIO SOUZA; NOBLE, RALPH; ZIED, DIEGO CUNHA. Recycling spent mushroom substrate into fuel pellets for low-emission bioenergy producing systems. JOURNAL OF CLEANER PRODUCTION, v. 313, . (15/15306-3, 19/19866-4, 17/24234-1)

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