Benign-by-Design Orange Peellated Nanocatalysts for Continuous Flow Conversion of Levulinic Acid to N-Heterocycles

In this work, two different strategies have been employed to explore the potential valorization of biomass waste. A TiO2-based sample was prepared by a dry-milling strategy, involving orange peel valorization toward nanostructured materials. Subsequently, ruthenium deposition was accomplished by a chemical reduction method to obtain different ruthenium loadings on the titania support. The prepared catalysts were characterized using a multitechnique approach in terms of chemical, structural, and morphological properties. Levulinic acid, a typical model molecule associated with lignocellulosic biomass, was subsequently converted into N-heterocycles in a continuous flow reactor. The prepared Ru-TiO2 systems exhibited outstanding catalytic performance in terms of conversion and selectivity in comparison with Ru/P25 and Ru/C catalytic references. Maximum activity (79% conversion, 85% selectivity to 1-ethyl-2-(ethylideneamino)-5-methylpyrrolidin-2-ol) was achieved for the sample containing 3 wt % Ru, homogeneously deposited on the titania surface. The obtained results were interpreted with the help of a complete postreaction characterization analysis of the most active sample. © 2018 American Chemical Society.

Authors
Rodríguez-Padrón D.1 , Puente-Santiago A.R.1 , Balu A.M.1 , Romero A.A.1 , Muñoz-Batista M.J.1 , Luque R. 1, 2
Publisher
American Chemical Society
Number of issue
12
Language
English
Pages
16637-16644
Status
Published
Volume
6
Year
2018
Organizations
  • 1 Departamento de Química Orgánica, Universidad de Córdoba, Campus de Rabanales, Edificio Marie Curie (C-3), Ctra Nnal IV-A, Km 396, Cordoba, E14014, Spain
  • 2 Peoples Friendship University of Russia, RUDN University, 6 Miklukho-Maklaya Str., Moscow, 117198, Russian Federation
Keywords
Biomass; Continuous flow reaction; Levulinic acid; N-heterocycles; Orange peel; Ruthenium; Titania-based catalysts
Date of creation
04.02.2019
Date of change
04.02.2019
Short link
https://repository.rudn.ru/en/records/article/record/36190/
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