Autor(es):
Bimestre, Thiago Averaldo [UNESP] ; Júnior, José Antonio Mantovani ; Botura, César Augusto ; Canettieri, ElianaVieira [UNESP] ; Tuna, Celso Eduardo [UNESP]
Data: 2020
Identificador Persistente: http://hdl.handle.net/11449/200425
Origem: Oasisbr
Assunto(s): Alkaline pretreatment; Hydrodynamic cavitation; Response surface methodology (RSM); Sugarcane bagasse; Venturi tube; Alkaline pretreatment; Alkaline pretreatment; Hydrodynamic cavitation; Hydrodynamic cavitation; Response surface methodology (RSM); Response surface methodology (RSM); Sugarcane bagasse; Sugarcane bagasse; Venturi tube; Venturi tube
Descrição
Made available in DSpace on 2020-12-12T02:06:18Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-09-01
A hydrodynamic cavitation reactor with a Venturi tube was modeled through a computational fluid dynamics approach in order to evaluate the influence of pressure ratio, diameter and length of the throat zone. A cavitation reactor equipped with a Venturi tube was built in accordance with the computational modeling results. Hydrodynamic cavitation assisted alkaline pretreatment was performed to evaluate the influence of NaOH concentration (1–5%), the weight to volume percentage of solid in liquid (1–5%) and the reaction time (20–60 min.) in the lignin removal. The response surface methodology was used to optimize pretreatment parameters for maximum lignin removal. The optimal condition was 4.90% of NaOH and a solid weight percentage in liquid of 2.03% in 58.33 min, resulting in a maximum removal of 56.01% of lignin. Hydrodynamic cavitation can be easy to employ, an efficient and promissory pretreatment tool.
Chemistry and Energy Department Guaratinguetá Engineering Faculty São Paulo State University UNESP, CEP: 12516-410
Mechanical Engineering Department Lorena Campus São Paulo Salesian University Center UNISAL, CEP: 12600-100
Aerospace Metrological Reliability Division- CMA Institute for Promotion and Industrial Coordinator– IFI Department of Aerospace Science and Technology - DCTA, CEP: 12228-901
Chemistry and Energy Department Guaratinguetá Engineering Faculty São Paulo State University UNESP, CEP: 12516-410
