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Kinetic Analysis of Glycerol Esterification Using Tin Exchanged Tungstophosphoric Acid on K-10
[Image: see text] Glycerol acetins (mono-, di-, and tri) are produced via esterification with acetic acid. The acetins are commercially important industrial chemicals including their application as fuel additives, thus significant to environmental sustainability and economic viability of the biorefi...
Autores principales: | , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2022
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10655101/ https://www.ncbi.nlm.nih.gov/pubmed/38020789 http://dx.doi.org/10.1021/acs.iecr.2c01930 |
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author | Keogh, John Jeffrey, Callum Tiwari, Manishkumar S. Manyar, Haresh |
author_facet | Keogh, John Jeffrey, Callum Tiwari, Manishkumar S. Manyar, Haresh |
author_sort | Keogh, John |
collection | PubMed |
description | [Image: see text] Glycerol acetins (mono-, di-, and tri) are produced via esterification with acetic acid. The acetins are commercially important industrial chemicals including their application as fuel additives, thus significant to environmental sustainability and economic viability of the biorefinery industry. Glycerol esterification with acetic acid was studied using partial tin exchanged tungstophosphoric acid supported on montmorillonite K-10 as catalysts. Partially exchanging the H(+) ion of DTP with Sn (x = 1) increased the acidity of the catalyst and showed an increase in the catalytic activity as compared to the DTP/K-10 catalyst. A series of tin exchanged tungstophosphoric acid (20% w/w) supported on montmorillonite K-10 clay (Sn(x)-DTP/K-10, where x = 0.5–1.5) were synthesized and thoroughly characterized by using BET, XRD, FT-IR, UV–vis, and titration techniques. Among various catalysts, Sn(1)-DTP/K-10 was found to be the most active catalyst for glycerol esterification. Effects of different reaction parameters were studied and optimized to get high yields of glycerol triacetin. A suitable kinetic model of the reaction was fitted, and the Langmuir–Hinshelwood (L-H) dual-site model was able to describe the experimental data with high agreement between the experimental and calculated results. The prepared catalyst could be recycled at least four times without significant loss of activity. The overall process is green and environment friendly. |
format | Online Article Text |
id | pubmed-10655101 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-106551012023-11-17 Kinetic Analysis of Glycerol Esterification Using Tin Exchanged Tungstophosphoric Acid on K-10 Keogh, John Jeffrey, Callum Tiwari, Manishkumar S. Manyar, Haresh Ind Eng Chem Res [Image: see text] Glycerol acetins (mono-, di-, and tri) are produced via esterification with acetic acid. The acetins are commercially important industrial chemicals including their application as fuel additives, thus significant to environmental sustainability and economic viability of the biorefinery industry. Glycerol esterification with acetic acid was studied using partial tin exchanged tungstophosphoric acid supported on montmorillonite K-10 as catalysts. Partially exchanging the H(+) ion of DTP with Sn (x = 1) increased the acidity of the catalyst and showed an increase in the catalytic activity as compared to the DTP/K-10 catalyst. A series of tin exchanged tungstophosphoric acid (20% w/w) supported on montmorillonite K-10 clay (Sn(x)-DTP/K-10, where x = 0.5–1.5) were synthesized and thoroughly characterized by using BET, XRD, FT-IR, UV–vis, and titration techniques. Among various catalysts, Sn(1)-DTP/K-10 was found to be the most active catalyst for glycerol esterification. Effects of different reaction parameters were studied and optimized to get high yields of glycerol triacetin. A suitable kinetic model of the reaction was fitted, and the Langmuir–Hinshelwood (L-H) dual-site model was able to describe the experimental data with high agreement between the experimental and calculated results. The prepared catalyst could be recycled at least four times without significant loss of activity. The overall process is green and environment friendly. American Chemical Society 2022-10-26 /pmc/articles/PMC10655101/ /pubmed/38020789 http://dx.doi.org/10.1021/acs.iecr.2c01930 Text en © 2022 The Authors. Published by American Chemical Society https://creativecommons.org/licenses/by/4.0/Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Keogh, John Jeffrey, Callum Tiwari, Manishkumar S. Manyar, Haresh Kinetic Analysis of Glycerol Esterification Using Tin Exchanged Tungstophosphoric Acid on K-10 |
title | Kinetic Analysis
of Glycerol Esterification Using
Tin Exchanged Tungstophosphoric Acid on K-10 |
title_full | Kinetic Analysis
of Glycerol Esterification Using
Tin Exchanged Tungstophosphoric Acid on K-10 |
title_fullStr | Kinetic Analysis
of Glycerol Esterification Using
Tin Exchanged Tungstophosphoric Acid on K-10 |
title_full_unstemmed | Kinetic Analysis
of Glycerol Esterification Using
Tin Exchanged Tungstophosphoric Acid on K-10 |
title_short | Kinetic Analysis
of Glycerol Esterification Using
Tin Exchanged Tungstophosphoric Acid on K-10 |
title_sort | kinetic analysis
of glycerol esterification using
tin exchanged tungstophosphoric acid on k-10 |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10655101/ https://www.ncbi.nlm.nih.gov/pubmed/38020789 http://dx.doi.org/10.1021/acs.iecr.2c01930 |
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