• Influência de álcoois na síntese e propriedades das sílicas mesoporosas 

      Alkimim, Isabella Pereira; http://lattes.cnpq.br/8382664283600912 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 23/02/2015)
      In recent years there has been growing interest in studies on the use of heterogeneous catalysts in the biodiesel production, since such materials have some advantages over homogeneous catalysts such as ease of separation ...
    • Propriedades da sílica CTA-MCM-41 contendo metacrilatos e seu emprego na transesterificação de monoéster 

      Araújo, Jailson Arruda de; http://lattes.cnpq.br/4541573294061168 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 07/03/2013)
      The search for clean and renewable fuels has aroused great interest in the industry and scientific community with the growing demand for energy. The transesterification reaction of triglycerides is one way of achieving a ...
    • Síntese da CTA-MCM-41 a partir de trissilicato de sódio e avaliação na transesterificação de ésteres 

      Barbosa, Juliana Pereira; http://lattes.cnpq.br/9807198403034505 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 25/02/2014)
      The increasing demand for it in today s world and the problems caused by fossil fuel usage lead to a search for alternative sources that may integrate the world s energy matrix. In this context, because this product is ...
    • Isomerização de n-hexano sobre Pt-NiHUSY empregando zeolita com alto teor de Al. 

      Barsi, Fabricio Ventura; http://buscatextual.cnpq.br/buscatextual/controladorbuscacv (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 03/08/2005)
      The isomerization reactions of linear alkanes are very important to petrochemical industries due to the isomer products in reaction possess high octane number. The majority of the literature articles involves the job ...
    • Isomerização do n-heptano sobre catalisadores bifuncionais Pt-Ni suportados em zeólitas BEA e FAU 

      Barsi, Fabrício Ventura; http://lattes.cnpq.br/7635533390888747 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 09/12/2009)
      The objective of this paper was to study the influence of metal loading content on the properties of bimetallic catalysts, formed by Pt and Ni, supported on zeolite HUSY and HBEA. Another objective of this study was to ...
    • Síntese e propriedades de sílicas híbridas contendo surfactantes catiônicos 

      Campos, Ana Flavia Pinheiro de; http://lattes.cnpq.br/7465177122348197 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 21/09/2015)
      The control of pore geometry and pore diameter of silica mesoporous materials is necessary for application of these materials, mainly in industrial process that depends on the shape selectivity. This way, considerable ...
    • Síntese e propriedades da zeólita FAU com cristais nanométricos 

      Chaves, Thiago Faheina; http://lattes.cnpq.br/4406892192390018 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 21/07/2010)
      The FAU zeolite was obtained using different amounts of water. Both at higher levels as the lowest amount of water the intensities of the diffraction peaks are less intense. The results of physisorption of these samples ...
    • Síntese e avaliação catalítica das zeólitas com estrutura BEA, MFI e MTW na reação de Knoevenagel 

      Chaves, Thiago Faheina; http://lattes.cnpq.br/4406892192390018 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 22/08/2014)
      The use of zeolites in basic catalysis is small, especially when compared to the numerous applications of material in their acid form. Inside this context, are even smaller the number of studies on the use of as-synthesized ...
    • Efeito das condições de preparação da [CTA+]-SiMCM-41 na atividade da transesterificação 

      Cruz, Fernanda Tátia; http://lattes.cnpq.br/9642834984473672 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 26/02/2010)
      The hybrid [CTA+]-SiMCM-41 mesoporous material (where CTA+ is the cetyltrimethylammonium cation) was employed as synthesized in the transesterification reaction between ethyl acetate and methanol. This is a model reaction ...
    • Avaliação do catalisador CTA-MCM-41, modificado por poliacrilatos, na transesterificação de monoéster 

      Cruz, Fernanda Tátia; http://lattes.cnpq.br/9642834984473672 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 24/03/2014)
      The silica hybrid CTA-MCM-41 (where CTA is the cetyltrimethylammonium cation) was synthesized and used in the transesterification of ethyl acetate with methanol. This is a model reaction used to test basic catalysts for ...
    • Avaliação do híbrido CTA-MCM-41, modificado por poliestireno, na transesterificação catalítica de monoéster 

      Cruz, Ivana Helena da; http://lattes.cnpq.br/3731669911153393 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 29/09/2013)
      The present work shows a new technique applied to the synthesis of heterogeneous catalysts MCM-41 containing basic alkylammonium cations and the study of stability in the transesterification reactions of monoesters. MCM-41 ...
    • Síntese e avaliação de sílica tipo M41S contendo cátions CTA em transesterificação catalítica 

      Fabiano, Demian Patrick; http://lattes.cnpq.br/6746672472192131 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 13/08/2010)
      The investments in the biofuel production have increased a lot in the last years mainly because of smaller damages they cause to the environment in comparison with the derived conventional petroleum fuels. The reaction of ...
    • Incorporação de titânio na peneira molecular Mor e suas propriedades. 

      Fernandez, Romilda; http://genos.cnpq.br:12010/dwlattes/owa/prc_imp_cv_int?f_cod=K4768169D7 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 14/08/2003)
      The titanium incorporation in the MFI structure generated a new material, called TS-1, which showed highly active in oxidation reactions of organic compounds. A very important aspect in this titanium-silicate is that it ...
    • Propriedades de sílicas híbridas obtidas por co-condensação com HDTMS e TPOAC 

      Ferreira, Aurélia Retiella Oliveira; http://lattes.cnpq.br/7217166457322618 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, Câmpus São Carlos, 19/02/2016)
      The master degree work presented is a result of a research conducted together with a group, which has worked on the modification of the synthesis CTA-MCM-41, that silica belongs to the mesoporous materials family (composed ...
    • Estudos sobre a síntese da zeólita Beta na presença de íons fluoreto 

      Franco, Gil César Pereira; http://lattes.cnpq.br/5346237770905097 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 27/02/2013)
      One alternative to increase the octane rating of gasoline without the use of toxic or polluting compounds, banned by environmental legislation, is the transformation of linear paraffins of low octane number into branched ...
    • Isomerização do n-Hexano por platina suportada na zeólita H-ZSM-5 : efeito do teor de alumínio 

      Gomes, Fagner Alves; http://lattes.cnpq.br/2587990892434114 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 01/08/2011)
      The objective of this study was to verify the influence of the Si/Al ratio (11.5, 15.0, 25.0, 40.0 and 140.0) in zeolite ZSM-5 in the conversion, activity, selectivity and stability as bifunctional catalysts (Pt/H-ZSM-5) ...
    • Isomerização do N-hexano sobre catalisadores Pt-Ni suportados na zeólita H-BEA nanocristalina 

      Lima, Patrícia Moreira; http://genos.cnpq.br:12010/dwlattes/owa/prc_imp_cv_int?f_cod=K4765074A6 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 11/11/2008)
      This work had as a goal to investigate the main factors that explain the highest activity of zeolite Beta in relation to the other zeolitic structures, using the n-hexane isomerization as a criterion. With this goal, in ...
    • Síntese de titanatos alcalinos e avaliação na transesterificação catalítica 

      Marciniuk, Letícia Ledo; http://lattes.cnpq.br/9243858170287624 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 11/06/2012)
      Three methods for the synthesis of sodium titanates were investigated: solid state treatment (800 oC), hydrothermal treatment (110 oC) and sol-gel method (55 oC). The titanium oxide was used as starting compound for ...
    • Aplicação de peneiras moleculares contendo cátions orgânicos em catálise básica 

      Martins, Leandro; http://lattes.cnpq.br/5782696565602340 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 12/12/2008)
      This thesis was aimed at studying novel basic catalysts based on molecular sieves containing alkylammonium cations. The studied molecular sieves were faujasite zeolites (FAU) and mesoporous silicate (like MCM-41). The ...
    • Síntese de zeólita FAU com cristais nanométricos para fins de adsorção 

      Massula, Lívia Maciel; http://lattes.cnpq.br/4221057085661380 (Universidade Federal de São Carlos, UFSCar, Programa de Pós-Graduação em Engenharia Química - PPGEQ, , 17/03/2014)
      Significant investments have been made in the development of technologies that enable the drying process of natural gas. The molecular sieves are highlighted in this context, due to features such as ion exchange capacity, ...