Fuel pellets with antioxidant of illicit cigarette's tobacco auto-generate less CO2, produce adequate flame and are toxicologically reliable

Autor(es)

de Almeida Moreira, Bruno Rafael ^[1] ; Cruz, Victor Hugo ^[1] ; de Lima, Edivaldo Wilson ^[2] ; Alves, Lucas da Silva ^[3] ; Matos Lopes, Paulo Renato ^[2] ; Viana, Ronaldo da Silva ^[2]

Afiliação do(s) autor(es)

^[1] Sao Paulo State Univ, UNESP, Sch Engn, Dept Phytosanit Rural Engn & Soils, BR-15385000 Ilha Solteira, SP - Brazil

^[2] Sao Paulo State Univ, UNESP, Coll Agr & Technol Sci, Dept Plant Prod, Dracena, SP - Brazil

^[3] Sao Paulo State Univ, UNESP, Sch Agr & Veterinarian Sci, Dept Appl Biol, Jaboticabal, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: BIOMASS & BIOENERGY; v. 153, OCT 2021.
• Citações Web of Science: 0

Resumo

Our holistic study, firstly, developed pellets with extract of illicit cigarette's tobacco for controlling off-gassing of CO2 then quantitatively analyzed the implications of this addition to combustion, tendency for slagging and fouling, and toxicology of the final product. The production of pellets consisted of adding 0.10 L of extract at 0.05% v v-1 to 2.00 kg of feedstock by stirring or spraying then pressing on an automatic pelletizer machine at 200.00 MPa and 125.00 degrees C. The monitoring and quantification of auto-generation of gas from pellets under steady-state atmosphere lasted for one month. Usage of extract by spraying effectively reduced the absolutegrowth rate of autoxidation of extractives and activity of off-gassing in 3.70% g-1 pellets d-1 and 217.40 mg CO2 kg- 1 pellets d-1, respectively, but slightly accelerated the combustion, tended more to slagging and fouling, and increased the emissions of NOx, SO2, and volatile organic compounds. However, solid biofuels met the rigors for manual and automatic wood-burning appliances and contained tobacco-specific harmful and potentially harmful compounds nearly an order of magnitude below toxicant levels of occupant discomfort and sensory irritation. Our findings are timely and provide valuable knowledge on the ability of the extract to function as an alternative radical terminator and thus considerably decelerate the time-dependent activity of off-gassing. This antioxidant will open up the horizons for utilization of pellets as solid biofuels in cleaner and safer bioenergy producing systems and assist with tackling environmental and social consequences of spontaneous generation of gases and explosions in home-made and industrial settings. (AU)

• Processo FAPESP: 17/24234-1 - Rendimento energético da biomassa produzida do etanol de primeira e segunda geração, acrescido com glicerina bruta para produção de pellets
• Beneficiário: Ronaldo da Silva Viana
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOEN - Regular