Abstract
AbstractGlycerol is an important by-product (biowaste) from biodiesel production. Transformation of glycerol into value-added compounds is critical in improving the overall efficiency of the biodiesel production. In this work, a sustainable and cleaner production of 1,3-propanediol (1,3-PDO) by vapor phase hydrogenolysis of glycerol was performed over titanium phosphate (TiP) supported catalysts by varying the Pt and WO3 loadings (5–20 wt.%). The WO3 promoted Pt modified TiP catalysts were prepared by a simple wet impregnation method and characterized by various analytical techniques in determining the key properties. Furthermore, the catalyst activity and stability were studied under different reaction conditions. The synergistic effects of Pt and WO3 loadings on the final performance of the catalyst has been significant in improving the hydrogen transfer rate. Both Pt and WO3 promotional effects is envisaged the enhanced catalytic properties in conjunction with TiP support acidity. WO3 incorporation increased Brønsted acidity and formed strong interactions with Pt over TiP support. Both Lewis and Brønsted acid sites presented but BAS played a key role in enhancing the 1,3-PDO selectivity in a bifunctional dehydration-hydrogenation reaction mechanism of glycerol. The effect of reaction temperature, contact times and the weight hour space velocity were evaluated. Overall, under optimized reaction conditions, 2 wt.% Pt-10 wt.% WO3/TiP catalyst displayed superior activity with a maximum glycerol conversion of ~ 85% and ~ 51% of 1,3-PDO selectivity achieved at time on stream of 4 h.
Graphical Abstract
Funder
University of Oulu including Oulu University Hospital
Publisher
Springer Science and Business Media LLC
Subject
Waste Management and Disposal,Renewable Energy, Sustainability and the Environment,Environmental Engineering
Reference38 articles.
1. Balla, P., Seelam, P.K., Balaga, R., Rajesh, R., Perupogu, V., Liang, T.X.: Immobilized highly dispersed Ni nanoparticles over porous carbon as an efficient catalyst for selective hydrogenation of furfural and levulinic acid. J. Environ. Chem. Eng. 9, 106530 (2021). https://doi.org/10.1016/j.jece.2021.106530
2. Saeidabad, N.G., Noh, Y.S., Eslami, A.A., Song, H.T., Kim, H.D., Fazeli, A., Moon, D.J.: A review on catalysts development for steam reforming of biodiesel derived glycerol; promoters and supports. Catalysts 10, 1–22 (2020). https://doi.org/10.3390/catal10080910
3. Singh, G., Pradhan, G., Pradhan, S., Sharma, Y.C.: Transformation of biodiesel waste glycerol to value added glycerol carbonate. Chem Sci Rev Lett 9, 1003–1013 (2020)
4. Carlucci, C.: A focus on the transformation processes for the valorization of glycerol derived from the production cycle of biofuels. Catalysts 11, 1–24 (2021). https://doi.org/10.3390/catal11020280
5. Xi, Z., Jia, W., Zhu, Z.: WO3–ZrO2–TiO2 composite oxide supported Pt as an efficient catalyst for continuous hydrogenolysis of glycerol. Catal. Lett. (2020). https://doi.org/10.1007/s10562-020-03270-4
Cited by
4 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献