Ponnala, B., Balla, P., Hussain, S. K., Ginjupalli, S. R., Koppadi, K., Nekkala, N., Perupogu, V., Lassi, U., & Seelam, P. K. (2022). Selective hydrogenolysis of biodiesel waste bioglycerol over titanium phosphate (Tip) catalysts: The effect of pt & wo3 loadings. Waste and Biomass Valorization. https://doi.org/10.1007/s12649-022-01909-4
Selective hydrogenolysis of biodiesel waste bioglycerol over titanium phosphate (TiP) catalysts : the effect of Pt & WO₃ loadings
|Author:||Ponnala, Bhanuchander1; Balla, Putrakumar1; Hussain, S. K.1;|
1Energy and Environmental Engineering Department, CSIR-Indian Institute of Chemical Technology, Hyderabad, Telangana, 500007, India
2Department of Applied Science, University of Technology and Applied Science, 74, Muscat, Sultanate of Oman
3Sustainable Chemistry Research Unit, Faculty of Technology, University of Oulu, P.O. Box 4300, 90014, Oulu, Finland
|Online Access:||PDF Full Text (PDF, 1.9 MB)|
|Persistent link:|| http://urn.fi/urn:nbn:fi-fe2022091358895
|Publish Date:|| 2022-09-13
Glycerol 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.
Waste and biomass valorization
|Type of Publication:||
A1 Journal article – refereed
|Field of Science:||
116 Chemical sciences
Open Access funding provided by University of Oulu including Oulu University Hospital. Dr. Putra Kumar acknowledges the funding and research support from IICT Hyderabad and CSIR, Delhi, India. Dr. Prem Kumar Seelam acknowledges and is thankful to the project Hycat2 and Hycamite Oy, Kokkola, Finland.
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