Search Results - "Melo, Dulce Maria Araújo"

Energetic characterization and evaluation of briquettes produced from naturally colored cotton waste by da Silva, Janduir Egito, de Araújo Melo, Dulce Maria, de Freitas Melo, Marcus Antônio, de Aguiar, Emerson Moreira, Pimenta, Alexandre Santos, de Medeiros, Everaldo Paulo, Calixto, Guilherme Quintela, Braga, Renata Martins

“…Cotton crops generate millions of tons of lignocellulosic waste in Brazil that could be used in energy generation; however, the main destination of this raw…”
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Colored cotton wastes valuation through thermal and catalytic reforming of pyrolysis vapors (Py-GC/MS) by da Silva, Janduir Egito, Calixto, Guilherme Quintela, de Araújo Medeiros, Rodolfo Luiz Bezerra, de Freitas Melo, Marcus Antônio, de Araújo Melo, Dulce Maria, de Carvalho, Luiz Paulo, Braga, Renata Martins

“…This study aims to analyze the products of the catalytic pyrolysis of naturally colored cotton residues, type BRS (seeds from Brazil), called BRS-Verde,…”
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Sulfur removal from model fuel by Zn impregnated retorted shale and with assistance of design of experiments by de Lima, Flávia Melo, de Andrade Borges, Talitha, Braga, Renata Martins, de Araújo Melo, Dulce Maria, Martinelli, Antônio Eduardo

“…There is global concern about acid rain and other pollution which is caused by the consumption of oil. By decreasing sulfur content in the oil, we can reduce…”
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Study of carbonation in a class G Portland cement matrix at supercritical and saturated environments by de Sena Costa, Bruno Leonardo, de Oliveira Freitas, Julio Cezar, Silva Santos, Paulo Henrique, Gomes da Silva Araújo, Romero, dos Santos Oliveira, Juan Fábio, de Araújo Melo, Dulce Maria

“…[Display omitted] •CO2 in a same pressure vessel in supercritical condition and dissolved in water.•Effects of supercritical CO2 and saturated CO2 in water in…”
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Evaluation of Brazilian Iron-Based Ore and Industrial Waste as Low-Cost Oxygen Carriers for Chemical Looping Process by Araújo Barros do Nascimento Santiago, Rebecca, de Araújo Melo, Dulce Maria, Adánez-Rubio, Iñaki, Braga, Renata Martins, Adánez, Juan, César Santiago, Rodrigo, Bezerra de Araújo Medeiros, Rodolfo Luiz

“…Given the crucial role of oxygen carriers in advancing chemical looping (CL) technology, the innovation of this study lies in the evaluation of inexpensive and…”
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Effect of the Acid Treatment of Montmorillonite Clay in the Oleic Acid Esterification Reaction by Nascimento, Alexsandra Rodrigues do, Alves, José Antônio Barros Leal Reis, Melo, Marcus Antônio de Freitas, Melo, Dulce Maria de Araújo, Souza, Marcelo José Barros de, Pedrosa, Anne Michelle Garrido

“…Biodiesel is a fuel renewable, biodegradable and environmentally correct fuel, which can be obtained from the esterification reactions, transesterification and…”
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Kinetic study of the catalytic pyrolysis of elephant grass using Ti-MCM-41 by Fontes, Maria do Socorro Braga, Melo, Dulce Maria de Araújo, Barros, Joana Maria de Farias, Braga, Renata Martins, Rodrigues, Gicélia

“…This work aimed to study the kinetics of thermal and catalytic pyrolysis using Ti-MCM-41 as catalyst in order to assess the catalytic pyrolysis efficiency…”
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Synthesis of MgAl2O4 by Gelatin Method: Effect of Temperature and Time of Calcination in Crystalline Structure by Figueredo, Gilvan Pereira de, Carvalho, Alexandre Fontes Melo de, Medeiros, Rodolfo Luiz Bezerra de Araújo, Silva, Francisco Marcelo, Macêdo, Heloísa Pimenta de, Melo, Marcus Antônio de Freitas, Melo, Dulce Maria de Araújo

“…Magnesium aluminate can be obtained by the methods: ceramic method, sol-gel, co-precipitation, hydrothermal and combustion. However, this work presents a…”
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Characterization of ZnAl2O4 Spinel Obtained by Hydrothermal and Microwave Assisted Combustion Method: A Comparative Study by Macedo, Heloísa Pimenta de, Medeiros, Rodolfo Luíz Bezerra de Araújo, Medeiros, Amanda Lucena de, Oliveira, Ângelo Anderson Silva de, Figueredo, Gilvan Pereira de, Melo, Marcus Antônio de Freitas, Melo, Dulce Maria de Araújo

“…In this work, zinc aluminate spinel was prepared by two methods of directly synthesis (without calcination): microwave assisted combustion and hydrothermal…”
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Microwave-assisted hydrothermal synthesis and magnetic properties of nanostructured cobalt ferrite by Gurgel, Ana Lúcia, Martinelli, Antonio Eduardo, Conceição, Ozivam Lopes de Aquino, Xavier, Milton Moraes, Morales Torres, Marco Antonio, de Araújo Melo, Dulce Maria

“…Cobalt ferrite is an important magnetic material due to its high saturation magnetization and high energy product BH. CoFe2O4 nanoparticles can be synthesized…”
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Kinetic study and effect of flash pyrolysis temperature of kraft lignin on the yield of aromatic compounds by de Oliveira, Gislane Pinho, de Melo Siqueira, Lorena Araújo, Calixto, Guilherme Quintela, de Araújo Melo, Dulce Maria, de Freitas Melo, Marcus Antonio, Pimenta, Alexandre Santos, Braga, Renata Martins

“…The growth in global energy demand and the urge to reduce CO 2 emission make renewable sources viable alternatives to replace fossil fuels and petrochemicals…”
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Modulator Effect of Acetic Acid on the Morphology of Luminescent Mixed Lanthanide-Organic Frameworks by Leite, Ana Karina Pereira, Barros, Bráulio Silva, Kulesza, Joanna, Nascimento, Jarley Fagner Silva do, Melo, Dulce Maria de Araújo, Oliveira, Angelo Anderson Silva de

“…The control of the size and morphology of Metal-Organic Frameworks is a challenge that must be overcome to ensure the use of these materials in advanced…”
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Spectroscopic Properties of pigment Li2-xZn1-xPrxTi3O8 by Câmara, Maria Suely Costa da, Spinelli, Adaiane, Longo, Elson, Azevedo, Luciano Nobrega, Costa, Asenete Frutuoso, Pimentel, Patricia Mendonça, Melo, Dulce Maria de Araújo

“…Inorganic compounds doped with rare earths (Ce3+, Pr3+, Nd3+, Sm3+, Eu 3+, Gd 3+, Tb 3+, Tm3+) have been used in various applications including light-emitting…”
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Carbonation in oil well Portland cement: Influence of hydration time prior to contact with CO2 by Costa, Bruno Leonardo de Sena, Freitas, Julio Cezar de Oliveira, Santos, Paulo Henrique Silva, Melo, Dulce Maria de Araújo, Araujo, Romero Gomes da Silva, Oliveira, Yvis Henrique de

“…[Display omitted] •Different scenarios: CO2 naturally present in rock or artificially injected.•Exposure to CO2 and analysis of influence on the cement…”
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Pachira aquatica fruits shells valorization: renewables phenolics through analytical pyrolysis study (Py-GC/MS) by Correia, Luiz Augusto da Silva, Silva, Janduir Egito da, Calixto, Guilherme Quintela, Melo, Dulce Maria de Araújo, Braga, Renata Martins

“…This research valorized Pachira aquatica Aubl.’s fruit shells (PAS) through its energetic characterization and flash pyrolysis for biofuels or chemicals…”
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Comparison of Kinetic Study of CTMA+ Removal of Molecular Sieve Ti-MCM-41 Synthesized with Natural and Commercial Silica by Fontes, Maria do Socorro Braga, Melo, Dulce Maria de Araújo, Costa, Cintia de Castro, Braga, Renata Martins, Melo, Marcus Antonio de Freitas, Alves, José Antônio Barros Leal Reis

“…This work aimed to determine and compare the apparent activation energy, involved in thermal decomposition of CTMA super(+) from the pores of Ti-MCM-41…”
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Analyzing coarsening versus densification phenomenon present in partial sintering of Al2O3/TiO2 composites by Aragão, Victor Teixeira da Silva, Silva, Vanessa Santana, Carvalho, Rafael Rabelo de, Matos, Robert S., Ferreira, Nilson S., Melo, Dulce Maria de Araújo, Oliveira, Rosane Maria Pessoa Betânio

“…Alumina–titania (Al2O3/TiO2) composites are well-known for their physical and microstructural properties, which allow several engineering applications…”
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Valorization of Wood Residues from Vegetation Suppression during Wind Energy Plant Implementation and Its Potential for Renewable Phenolic Compounds through Flash Pyrolysis: A Case Study in Northeast Brazil’s Semi-Arid Region by Marcela Cristina Pereira dos Santos Almeida, Janduir Egito da Silva, Willame Gomes da Silva Batista, José Luiz Francisco Alves, Dulce Maria de Araújo Melo, Alexandre Santos Pimenta, Renata Martins Braga

“…In the past few years, wind power has become a viable alternative in Brazil to diversify the energy mix and mitigate pollutant emissions from fossil fuels…”
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EFFECT OF PYROLYSIS HEATING RATE ON THE CHEMICAL COMPOSITION OF WOOD VINEGAR FROM EUCALYPTUS UROGRANDIS AND MIMOSA TENUIFLORA by Medeiros, Lúcio César Dantas de, Pimenta, Alexandre Santos, Braga, Renata Martins, Carnaval, Tatiane Kelly de Azevedo, Medeiros Neto, Pedro Nico, Melo, Dulce Maria de Araújo

“…ABSTRACT Among the parameters used in the biomass carbonization process, the heating rate is one of the most important. The objective of the present work was…”
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Effect of Urea Excess on the Properties of the MgAl2O4 Obtained by Microwave-Assisted Combustion by Carvalho, Luciene Santos, Melo, Vitor Rodrigo de Melo e, Vitor Sobrinho, Eledir, Ruiz, Doris, Melo, Dulce Maria de Araújo

“…In this paper, magnesium aluminate spinels were prepared by microwave-assisted combustion, using urea as fuel. In order to evaluate the effect of the urea…”
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