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Scale-up of dehydrogenation reaction system via heterogeneous metal catalysts for the utilization of by-product glycerol from biodiesel production process.
- Source :
- Journal of Industrial & Engineering Chemistry; Aug2024, Vol. 136, p211-221, 11p
- Publication Year :
- 2024
-
Abstract
- [Display omitted] Due to the increased waste glycerol from biodiesel process, this study focuses on scale-up of a reaction system for glycerol dehydrogenation to lactic acid and its derivatives using the Pt/ZrO 2 catalyst. A concentration–time profile was obtained, based on which reaction mechanism and a reaction rate model were determined. The Langmuir–Hinshelwood model was used to develop the reaction rate model, which accurately predicted conversion of glycerol and yield of lactate, within a 5% error bounds. Based on these predictions, the volume of a continuous stirred-tank reactor (CSTR) was successfully estimated under the same reaction conditions. The calculated volume was approximately 60% of the batch volume indicating that reactor can become significantly more compact if the continuous reactor type could be used. Additionally, a pilot-scale CSTR volume was calculated by reflecting the adjusted reaction rate parameters, which were estimated from the experimental study of the pelletized catalyst. Furthermore, a reaction system with three CSTRs in series could reduce the total reactor volume by 65% than that obtained using a single CSTR. The results could be used as basic data for the scale-up of the continuous reaction system, where glycerol dehydrogenation takes place over the Pt/ZrO 2 catalyst. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1226086X
- Volume :
- 136
- Database :
- Supplemental Index
- Journal :
- Journal of Industrial & Engineering Chemistry
- Publication Type :
- Periodical
- Accession number :
- 177753612
- Full Text :
- https://doi.org/10.1016/j.jiec.2024.02.008