Putrakumar, B., Seelam, P.K., Srinivasarao, G. et al. A comparison of Structure–Activity of Cu-Modified Over Different Mesoporous Silica Supports for Catalytic Conversion of Levulinic Acid. Waste Biomass Valor 13, 67–79 (2022). https://doi.org/10.1007/s12649-021-01485-z
A comparison of structure–activity of Cu-modified over different mesoporous silica supports for catalytic conversion of levulinic acid
|Author:||Putrakumar, Balla1; Seelam, Prem Kumar2; Srinivasarao, Ginjupalli3;|
1Engineering Research Centre for Hydrogen Energy and New Materials, College of Rare Earths (CORE), Jiangxi University of Science and Technology, Ganzhou, 341000, China
2Environmental and Chemical Engineering, Faculty of Technology, University of Oulu, Oulu, P.O. Box 4300, Finland
3Applied Chemistry Section, Department of Applied Sciences, University of Technology and Applied Sciences, P.O. Box 74, P.C 133, Muscat, Oman
4Catalysis Division, Indian Institute of Chemical Technology, Hyderabad, India
|Online Access:||PDF Full Text (PDF, 0.9 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe202301162880
|Publish Date:|| 2023-01-16
Catalytic hydrogenation of levulinic acid (LA) to γ-valerolactone (GVL) was investigated over four different types of mesoporous silica (SBA-15, MCM-48, MCM-41, and KIT-6) supported copper (5 wt.%) catalysts. The Cu was incorporated into mesoporous silica supports by a sequential impregnation method. A detailed investigation of the support structure–activity correlation and the performance of the catalysts in LA conversion was studied. Detailed characterisation techniques were used to evaluate the physical and catalytic properties of the studied catalysts. The structure type and physicochemical properties of the silica support had a significant effect on the overall performance of the catalysts. Among them, over Cu/SBA-15 catalyst, a complete levulinic acid (LA) conversion with ~ 98% gamma valerolactone (GVL) selectivity was achieved at 265 °C under ambient H₂ pressure. The superior performance of Cu/SBA-15 catalyst was attributed to the high surface acidity, reducibility of Cu oxides species, and highly dispersed Cu particles over SBA-15 structure. The results confirmed that the activity of the catalysts is significantly influenced by the textural properties, surface acidity and copper dispersion. Durability of all the catalysts were also tested for 50 h time on stream and over SBA-15 catalyst, only a small drop in the activity was observed.
Waste and biomass valorization
|Pages:||67 - 79|
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
218 Environmental engineering
Dr. Putra Kumar acknowledges the Council of Scientific and Industrial Research (CSIR), New Delhi for the award of Senior Research Fellowship (SRF). Dr. Putra Kumar acknowledges funding provided by National Science Foundation of China (Project No.51871114) to carry out the research.
© Springer Science+Business Media B.V., part of Springer Nature 2021. This is a post-peer-review, pre-copyedit version of an article published in Waste Biomass Valor. The final authenticated version is available online at: http://dx.doi.org/10.1007/s12649-021-01485-z.