Search Results - "Portilho, Marcio F."

Modified Niobium Oxyhydroxide Catalyst: An Acetalization Reaction to Produce Bio-additives for Sustainable Use of Waste Glycerol by Souza, Talita E., Portilho, Marcio F., Souza, Priscila M. T. G., Souza, Patterson P., Oliveira, Luiz C. A.

“…We report the synthesis and characterization of new niobium oxyhydroxide catalysts from ammonium niobium oxalate (NH4[NbO(C2O4)2(H2O)](H2O)n) or niobium…”
Get full text

Metal-free bifunctional silica for conversion of waste glycerol from biodiesel: Sustainable production of formic acid by Chagas, Poliane, Thibau, Mariana A., Breder, Samuel, Souza, Patterson P., Caldeira, Gabriela S., Portilho, Marcio F., Castro, Cinthia S., Oliveira, Luiz C.A.

“…•A sustainable route for the production of formic acid from residual glycerol.•A synthetic SiO2 with distinct behavior can be used directly as catalyst.•The…”
Get full text

Modified niobia as a bifunctional catalyst for simultaneous dehydration and oxidation of glycerol by Oliveira, Luiz C.A., Portilho, Marcio F., Silva, Adilson C., Taroco, Hosane A., Souza, Patterson P.

“…[Display omitted] ► Synthetic niobia highly active was obtained by the generation of peroxo groups after treatment with H2O2. ► The mass spectrometry showed…”
Get full text

Synthesis of MeOH and DME From CO2 Hydrogenation Over Commercial and Modified Catalysts by Santiago, Rafaelle G., Coelho, Juliana A., Lucena, Sebastião M. P. de, Musse, Ana Paula S., Portilho, Marcio de F., Rodriguez-Castellón, Enrique, Azevedo, Diana C. S. de, Bastos-Neto, Moises

“…Growing concern about climate change has been driving the search for solutions to mitigate greenhouse gas emissions. In this context, carbon capture and…”
Get full text

Niobium-modified hydrotalcite catalysts: Sustainable conversion of waste glycerol to valuable chemicals by Padula, Izabela D., Santos, Brenda M.A., Rodrigues, Ana P.H., Gastelois, Pedro Lana, Mendes, Isolda M.C., Portilho, Márcio F., Oliveira, Luiz C.A., Oliveira, Cinthia C.

“…[Display omitted] •Niobium-modified hydrotalcite prepared by ion exchange using peroxoniobate species.•Catalyst calcination produces a composite material (an…”
Get full text

Stability and Microwave Demulsification of Water in Castor Oil Biodiesel Emulsions by França, Bruno Bôscaro, Nogueira, Bruno, Carretoni, Cristine, Pessoa, Fernando Luiz Pellegrini, Portilho, Márcio F, Pinto, José Carlos, Nele, Marcio

“…Biodiesel may be produced by vegetable oil transesterification, followed by purification steps of product sedimentation and water washing. The occurrence of…”
Get full text

Enzymatic Synthesis of Biodiesel via Alcoholysis of Palm Oil by Matassoli, André L. F, Corrêa, Igor N. S, Portilho, Márcio F, Veloso, Cláudia O, Langone, Marta A. P

“…The enzymatic alcoholysis of crude palm oil with methanol and ethanol was investigated using commercial immobilized lipases (Lipozyme RM IM, Lipozyme TL IM)…”
Get full text

Waste glycerol conversion on pilot scale continuous process by Al-modified mesoporous SiO2 catalysts by Chagas, Poliane, Oliveira, Cinthia C., Leitão, Alexandre A., Lima, Larissa L., Portilho, Márcio F., Oliveira, Luiz C.A.

“…This work describes the conversion of the waste glycerol (as generated in the biodiesel industry, supplied by Petrobras) to valuable chemicals (such as formic…”
Get full text

SnSO4 as Catalyst for Simultaneous Transesterification and Esterification of Acid Soybean Oil by Pereira, Camila O., Portilho, Márcio F., Henriques, Cristiane A., Zotin, Fatima M. Z.

“…Biodiesel is an alternative biodegradable and non-toxic biofuel produced from renewable resources. Industrially, it is produced by catalytic…”
Get full text

Modified niobia as a bifunctional catalyst for simultaneous dehydration and oxidation of glycerol by OLIVEIRA, Luiz C. A, PORTILHO, Marcio F, SILVA, Adilson C, TAROCO, Hosane A, SOUZA, Patterson P

Get full text

SnSO 4 as Catalyst for Simultaneous Transesterification and Esterification of Acid Soybean Oil by Pereira, Camila O., Portilho, Márcio F., Henriques, Cristiane A., Zotin, Fatima M. Z.

Get full text