Conversion of sugars to methyl lactate with exfoliated layered stannosilicate UZAR-S4

Murillo, B. ; de la Iglesia, Ó. ; Rubio, C. ; Coronas, J. (Universidad de Zaragoza) ; Téllez, C. (Universidad de Zaragoza)

Resumen: Biomass has been shown as an alternative to fossil fuels for obtaining chemicals. In this work, the transformation of sugars into methyl lactate (ML) at 160 °C was carried out using the layered stannosilicate UZAR-S3 (University of Zaragoza-solid number 3) and the delaminated material UZAR-S4 (University of Zaragoza-solid number 4) obtained from its exfoliation. The exfoliation of UZAR-S3 to UZAR-S4 increased the accessibility of the compounds to the catalytic sites and the medium-strength acidity. Thus, the yield to ML for sucrose transformation increased from 8% for UZAR-S3 to 49.9 % for UZAR-S4. In the reusability tests, the UZAR-S4 catalyst was characterized before and after reaction by several techniques such as X-ray diffraction, thermogravimetry analysis, scanning electronic microscopy, energy dispersive X-ray spectroscopy and nitrogen adsorption. A deactivation of the catalyst was observed, which was related to carbonaceous deposits that decreased the specific surface area and the pore volume of the catalyst.

Idioma: Inglés

DOI: 10.1016/j.cattod.2020.03.064

Año: 2020

Publicado en: Catalysis Today 362 (2020), 90-96
ISSN: 0920-5861

Factor impacto JCR: 6.766 (2020)

Categ. JCR: CHEMISTRY, APPLIED rank: 10 / 74 = 0.135 (2020) - Q1 - T1
Categ. JCR: ENGINEERING, CHEMICAL rank: 19 / 143 = 0.133 (2020) - Q1 - T1
Categ. JCR: CHEMISTRY, PHYSICAL rank: 36 / 162 = 0.222 (2020) - Q1 - T1

Factor impacto SCIMAGO: 1.397 - Chemistry (miscellaneous) (Q1) - Catalysis (Q1)

Financiación: info:eu-repo/grantAgreement/ES/DGA-FSE/T43-17R
Financiación: info:eu-repo/grantAgreement/ES/MINECO-FEDER/MAT2016-77290-R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)