|
|
|
|
|
Lidiane Sabino da Silva, Gabriela Gonzaga Cher, Maria Auxiliadora Scaramelo Baldanza, Victor Luis dos Santos Teixeira da Silva, Pedro Augusto Arroyo (Author)
Pág. e45899
In the present work, the synthesis of Co/SBA-15 catalysts intended for Fischer-Tropsch (FT) synthesis was performed. During the synthesis of catalysts there was contamination of samples with sodium nitrate due to the nature of the reducing agent us...
ver más
|
|
|
|
|
|
|
|
|
|
|
Maria Angélica Simões Dornellas de Barros, Andréia Soares Zola, Pedro Augusto Arroyo, Eduardo Falabella Sousa-Aguiar, Célia Regina Granhen Tavares (Author)
Pág. 1619 - 1625
In this paper, the chromium uptake in zeolites NaA and NaX was investigated in equilibrium condition and in dynamic systems at 30oC. The separation factors, obtained from the equilibrium data, were very similar to the isotherms Cr-NaA e Cr-NaX, which ind...
ver más
|
|
|
|
|
|
|
|
|
|
|
Juliana Belincanta, Onélia Aparecida Andreo dos Santos, Eduardo Falabella Sousa-Aguiar, Pedro Augusto Arroyo, Maria Angélica Simões Dornellas de Barros (Author)
Pág. 1673 - 1679
This paper investigated the regeneration viability of NaY Zeolite columns previously exchanged with trivalent chromium ions. The direct exchanges were carried out with 15 ppm solution and the reverse ones were carried out with 3 distinct NaCl solutions: ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Adriano Morales Gonzales, Pedro Augusto Arroyo (Author)
Pág. 1407 - 1414
Synthesis of MTBE on dealuminated and leaching Beta zeolites is provided. Hydrothermal and chemical dealumination of HBeta zeolite leads to less active catalysts due to a decrease in the total concentration of Brönsted acid sites. Furthermore, it has bee...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gilberto da Cunha Gonçalves, Fernando Cesar Gazola, Maria Angelica Simoes Dornellas de Barros, Pedro Augusto Arroyo (Author)
Pág. 1415 - 1419
TAME was synthesized in liquid phase from refinery C5 cut and methanol using Amberlyst 15 as catalyst. The C5 stream contains mainly mono-olefins and, in a less amount, a diolefin, which have a high gum formation tendency. The main purpose of this resear...
ver más
|
|
|
|
|
|
|
|
|
|
|
Lucia Tagami, Onelia Aparecida Andreo dos Santos, Eduardo Falabella Sousa-Aguiar, Pedro Augusto Arroyo, Maria Angélica Simões Dornellas de Barros (Author)
Pág. 1351 - 1357
Isotherm ion exchange of Y zeolite has been studied at different temperatures. The direct exchanges of chromium in NaY show a very high selectivity to the in-going Cr3+ ion. It was also shown that exchange increases with increasing temperature. On the ot...
ver más
|
|
|
|
|
|
|
|
|
|
|
Gilberto da Cunha Gonçalves, Fernando César Gazola, Maria Angelica Simoes Dornellas de Barros, Pedro Augusto Arroyo (Author)
Pág. 1401 - 1406
Synthesis of TAME catalyzed by zeolites USY, H-Mordenita, H-ZSM-5 and H-Beta was studied. Reactions were carried out in a batch reactor at 80oC and 10 kgf/cm2, using methanol and reactive isoamylenes (2-methyl-1-butene and 2-methyl-2-butene) from a mono-...
ver más
|
|
|
|
|
|