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Development and application of lamellar vanadosilicates as catalysts in the glycerol oxidative dehydration

Grant number: 14/20116-6
Support type:Scholarships in Brazil - Doctorate
Effective date (Start): January 01, 2015
Effective date (End): July 31, 2018
Field of knowledge:Engineering - Chemical Engineering
Cooperation agreement: Coordination of Improvement of Higher Education Personnel (CAPES)
Principal Investigator:Leandro Martins
Grantee:Luiz Henrique Vieira
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated scholarship(s):17/00860-0 - A study on selective oxidation of methanol over lamellar vanadosilicates catalysts, BE.EP.DR

Abstract

One-step glycerol oxidative dehydration is presented as an interesting alternative for the recovery of glycerol excess obtained as co-product in the biodiesel formation process. This proposal presents the development and the study of a process for the efficient transformation and enhancement of glycerol to acrylic acid using zeolite catalysts. Due to the acidic and oxidizing properties that arise with the isomorphic substitution of vanadium compared to aluminum in zeolites, the proposal involves the development of vanadosilicates where the active sites present bifunctional characteristics, i.e., in a first step dehydrate glycerol to acrolein and in a second stage oxidizes acrolein to obtain acrylic acid. Another important aspect is the use of the lamellar structures in these materials that enable greater accessibility to the active sites for the reactants. Among the lamellar materials highlights the ITQ-2 and ITQ-6, with MWW and FER structures respectively, which have catalytic performance highlighted in relation to the purely microporous zeolites and, therefore, will be the catalysts developed and investigated in this proposal. A broad set of techniques to unravel and understand the mechanisms of formation of vanadosilicates, their behavior as a catalyst in the reaction, the identification and functionality of the active sites will be applied to the materials. Structural, textural and surface characterizations will be performed and with this information will be possible establish, systematically, the synthesis operational conditions and the opitmized catalytic activity. (AU)

Scientific publications (5)
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
VIEIRA, LUIZ H.; POSSATO, LUIZ G.; CHAVES, THIAGO F.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Studies on dispersion and reactivity of vanadium oxides deposited on lamellar ferrierite zeolites for condensation of glycerol into bulky products. MOLECULAR CATALYSIS, v. 458, n. B, SI, p. 161-170, OCT 2018. Web of Science Citations: 7.
RODRIGUES, MARIANA V.; VIEIRA, LUIZ H.; CAMPOS, GUILHERME P.; MARTINS, LEANDRO. Effect of different seed sources on the hydrothermal crystallization of MCM-22 zeolite catalysts. CrystEngComm, v. 20, n. 25, p. 3467-3475, JUL 7 2018. Web of Science Citations: 0.
RASTEIRO, LETICIA F.; VIEIRA, LUIZ H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Surfactant-assisted synthesis of Mo-V mixed oxide catalysts for upgraded one-step conversion of glycerol to acrylic acid. RSC ADVANCES, v. 8, n. 22, p. 11975-11982, 2018. Web of Science Citations: 0.
RASTEIRO, LETICIA F.; VIEIRA, LUIZ H.; POSSATO, LUIZ G.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Hydrothermal synthesis of Mo-V mixed oxides possessing several crystalline phases and their performance in the catalytic oxydehydration of glycerol to acrylic acid. CATALYSIS TODAY, v. 296, n. SI, p. 10-18, NOV 1 2017. Web of Science Citations: 5.
VIEIRA, LUIZ H.; CARVALHO, KELE T. G.; URQUIETA-GONZALEZ, ERNESTO A.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Effects of crystal size, acidity, and synthesis procedure on the catalytic performance of gallium and aluminum MFI zeolites in glycerol dehydration. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, v. 422, n. SI, p. 148-157, OCT 2016. Web of Science Citations: 18.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
VIEIRA, Luiz Henrique. Desenvolvimento e aplicação de vanadossilicatos lamelares como catalisadores na conversão do glicerol. 2018. 142 f. Doctoral Thesis - Universidade Estadual Paulista "Júlio de Mesquita Filho" Instituto de Química..

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