Search Results - "Vasconcelos Fregolente, Leonardo"

Facile tuning of hydrogel properties for efficient water removal from biodiesel: An assessment of alkaline hydrolysis and drying techniques by Arthus, Letícia, Ramos Estevam, Bianca, Jova Aguila, Zaida, Regina Wolf Maciel, Maria, Vasconcelos Fregolente, Leonardo

Get full text

Cellulose hydrogels for water removal from diesel and biodiesel: Production, characterization, and efficacy testing by Ramos Estevam, Bianca, Ferreira dos Santos Vieira, Flávia, Luiz Gonçalves, Henrique, Maria Moraes, Ângela, Vasconcelos Fregolente, Leonardo

“…[Display omitted] •Highly innovative hydrogels were developed to remove water from fuels.•Hydrogels were produced from cellulose using different preparation…”
Get full text

Formulation of hydrogels for water removal from diesel and biodiesel by Gonçalves, Henrique Luiz, Bogalhos Lucente Fregolente, Patrícia, Wolf Maciel, Maria Regina, Fregolente, Leonardo Vasconcelos

“…Removing water from liquid fuels, such as diesel, biodiesel and aviation kerosene, is essential for their production in order to achieve legal and commercial…”
Get full text

Production of Sustainable Aviation Fuels from Lignocellulosic Residues in Brazil through Hydrothermal Liquefaction: Techno-Economic and Environmental Assessments by Deuber, Raquel de Souza, Bressanin, Jéssica Marcon, Fernandes, Daniel Santos, Guimarães, Henrique Real, Chagas, Mateus Ferreira, Bonomi, Antonio, Fregolente, Leonardo Vasconcelos, Watanabe, Marcos Djun Barbosa

“…Decarbonization of the aviation sector relies on deployment of sustainable aviation fuels (SAF) at commercial scale. Hydrothermal liquefaction (HTL) has been…”
Get full text

Effects of cultivation systems and nutrient limitation on the growth and metabolite biosynthesis of Botryococcus terribilis by Estevam, Bianca Ramos, Pinto, Luisa Fernanda Ríos, Filho, Rubens Maciel, Fregolente, Leonardo Vasconcelos

“…Studies on B. terribilis cultivation have great economic and environmental relevance but are scarcely addressed in the literature. This article analyzes and…”
Get full text

Response surface methodology applied to optimization of distilled monoglycerides production by Fregolente, Leonardo Vasconcelos, Batistella, César Benedito, Filho, Rubens Maciel, Maciel, Maria Regina Wolf

“…This work demonstrates that response surface methodology (RSM) is a powerful tool for the optimization of the production of distilled MG. Experiments with a…”
Get full text

Water Content in Biodiesel, Diesel, and Biodiesel–Diesel Blends by Fregolente, Patricia Bogalhos Lucente, Fregolente, Leonardo Vasconcelos, Wolf Maciel, Maria Regina

“…Biodiesel has a higher affinity toward moisture content than petroleum diesel, and the water retaining capacity of biodiesel is higher than diesel. The water…”
Get full text

Sustainable catalysts for biodiesel production: The potential of CaO supported on sugarcane bagasse biochar by Melo, Vinícius Mateó e, Ferreira, Gabriela Filipini, Fregolente, Leonardo Vasconcelos

“…Biodiesel production faces environmental and economic challenges due to the use of homogeneous catalysts, such as NaOH, KOH, NaOCH3, and KOCH3. Despite their…”
Get full text

Design of mechanically stable polyacrylamide/cellulose hydrogel with high performance for biodiesel dehydration by Arthus, Letícia, Estevam, Bianca Ramos, Maciel, Maria Regina Wolf, Fregolente, Leonardo Vasconcelos

“…Hydrogel presents great potential for dehydrating fuel, although several challenges must be addressed to advance this technology for commercial use. The…”
Get full text

Synthesis of a Novel Cellulose Nanofiber-Based Composite Hydrogel with Poly(methyl methacrylate-co-methacrylic Acid) for Effective Water Removal from Liquid Fuels by Brito dos Santos, Fernanda, Perez, Isadora Dias, McMichael, Philip Spencer, Vasconcelos Fregolente, Leonardo, Maciel, Maria Regina Wolf, Tam, Kam Chiu

“…Water is present in liquid fuels in three different forms: dissolved, free, or emulsified, and its presence can considerably impair fuel quality by encouraging…”
Get full text

Potential applications of Botryococcus terribilis: A review by Estevam, Bianca Ramos, Ríos Pinto, Luisa Fernanda, Filho, Rubens Maciel, Fregolente, Leonardo Vasconcelos

Get full text

Maximizing unsaturated fatty acids production by using sugarcane agroindustry wastes in cultivation of Desmodesmus sp. in a flat plate photobioreactor by Ferreira, Gabriela Filipini, Pinto, Luisa Fernanda Ríos, Filho, Rubens Maciel, Fregolente, Leonardo Vasconcelos

“…Microalgae lipid accumulation can be accomplished by different strategies rather than naturally reaching the stationary phase. Many studies employ nitrogen (N)…”
Get full text

Sodium polyacrylate hydrogel fixed bed to treat Water-Contaminated cloudy diesel by Fregolente, Leonardo Vasconcelos, Gonçalves, Henrique Luiz, Fregolente, Patrícia Bogalhos Lucente, Maciel, Maria Regina Wolf, Soares, João B.P.

“…[Display omitted] •Unprecedented continuous treatment of cloudy diesel with hydrogel.•Lyophilized sodium polyacrylate was selected to be used as the bed…”
Get full text

Polymer hydrogel for water removal from naphthenic insulating oil and marine diesel by Perez, Isadora Dias, dos Santos, Fernanda Brito, Miranda, Nahieh Toscano, Vieira, Melissa Gurgel Adeodato, Fregolente, Leonardo Vasconcelos

“…[Display omitted] •An extensive physicochemical characterization of the oils was carried out.•Water solubility curves as a function of temperature were…”
Get full text

Growth and Metabolite Production in Chlorella sp.: Analysis of Cultivation System and Nutrient Reduction by Estevam, Bianca Ramos, Pinto, Luisa Fernanda Ríos, Filho, Rubens Maciel, Fregolente, Leonardo Vasconcelos

“…Microalgae are a sustainable source for many bioproduct syntheses. This study shows how different cultivation systems and nutrient concentrations affect…”
Get full text

Mono- and diglyceride production from microalgae: Challenges and prospects of high-value emulsifiers by Ferreira, Gabriela Filipini, Pessoa, José Gabriel Barreto, Ríos Pinto, Luisa Fernanda, Maciel Filho, Rubens, Fregolente, Leonardo Vasconcelos

“…Monoglycerides (MAG) and Diglycerides (DAG) belong to the category of naturally-occurring glycerolipids. They have wide applications in the food,…”
Get full text

Application of polyacrylamide-based hydrogels for water removal from biodiesel in isothermal experiments by Gonçalves, Henrique Luiz, Lucente Fregolente, Patrícia Bogalhos, Fregolente, Leonardo Vasconcelos, Soares, João P.B.

“…•Different hydrogels were applied in a batch system to remove water from biodiesel.•Experimental adsorption isotherms were measured for the hydrogels.•The…”
Get full text

A review of the strategies used to produce different networks in cellulose-based hydrogels by Estevam, Bianca Ramos, Perez, Isadora Dias, Moraes, Ângela Maria, Fregolente, Leonardo Vasconcelos

Get full text

Techno-economic assessment of HTL integration to the Brazilian sugarcane industry: An evaluation of different scenarios by Deuber, Raquel de Souza, Fernandes, Daniel Santos, Bressanin, Jéssica Marcon, Watson, Jamison, Chagas, Mateus Ferreira, Bonomi, Antonio, Fregolente, Leonardo Vasconcelos, Watanabe, Marcos Djun Barbosa

“…•Integrating HTL with current sugarcane mill was essential for economic feasibility.•The best scenario has resulted in IRR as high as 12.6 % per year.•The cost…”
Get full text

Dehydration of turbine engine lubricant oil using cellulose hydrogel by Estevam, Bianca Ramos, Perez, Isadora Dias, Gonçalves, Henrique Luiz, Zago, Gustavo Pereira, Tsuruta, Karina Mayumi, Neto, Roberto Mendes Finzi, Mancuzo, Mechelangelo Viana, Cavallini Junior, Aldemir Aparecido, Soares, João B.P., Moraes, Ângela Maria, Fregolente, Leonardo Vasconcelos

“…Contamination of oils by water is a recurring problem in the industry and can damage engines and equipment. Oil dehydration systems with hydrogels have shown…”
Get full text