Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography
Production of lactic acid by hydrothermal conversion of glycerol is an option to add value to the large amounts of glycerol that is being generated during the production of biodiesel. This work aimed to separate lactic acid by ion-exchange resins in a fixed-bed column. Adsorption isotherms were obta...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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SAGE Publications
2015-02-01
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| Series: | Adsorption Science & Technology |
| Online Access: | https://doi.org/10.1260/0263-6174.33.2.139 |
| _version_ | 1797282341541904384 |
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| author | M.R.A. Arcanjo F.A.N. Fernandes I. J. Silva |
| author_facet | M.R.A. Arcanjo F.A.N. Fernandes I. J. Silva |
| author_sort | M.R.A. Arcanjo |
| collection | DOAJ |
| description | Production of lactic acid by hydrothermal conversion of glycerol is an option to add value to the large amounts of glycerol that is being generated during the production of biodiesel. This work aimed to separate lactic acid by ion-exchange resins in a fixed-bed column. Adsorption isotherms were obtained from the breakthrough curves using different initial concentrations of lactic acid (60–302 g/l) and temperatures (30, 40 and 60 °C). Maximum adsorption capacities were estimated by the Langmuir model. Adsorption and desorption cycles for a binary and a real mixture were performed. The methodology proposed for the separation of lactic acid in a fixed-bed column presented high values of adsorptive capacity for both Amberlite IRA-96 and Amberlite IRA-67 resins at 30 °C. Lactic acid was more strongly adsorbed by Amberlite IRA-96 than the IRA-67 resin with maximum adsorption capacity of 544 and 341 g/l, respectively. Chromatographic experiments for the single-component solution (lactic acid), binary mixture (lactic acid and glycerol) and real mixture showed high values of recovery (29.2%, 31.3% and 23.5%, respectively) and productivity (3.14, 7.00 and 2.43 kg of lactic acid/kg resin. day). |
| first_indexed | 2024-03-07T17:11:25Z |
| format | Article |
| id | doaj.art-192becd9ec16494a9ef4e911302329ee |
| institution | Directory Open Access Journal |
| issn | 0263-6174 2048-4038 |
| language | English |
| last_indexed | 2024-03-07T17:11:25Z |
| publishDate | 2015-02-01 |
| publisher | SAGE Publications |
| record_format | Article |
| series | Adsorption Science & Technology |
| spelling | doaj.art-192becd9ec16494a9ef4e911302329ee2024-03-03T00:58:03ZengSAGE PublicationsAdsorption Science & Technology0263-61742048-40382015-02-013310.1260/0263-6174.33.2.139Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange ChromatographyM.R.A. Arcanjo0F.A.N. Fernandes1I. J. Silva2 Research Group Separations by Adsorption (GPSA), Department of Chemical Engineering, Technology Center, Federal University of Ceará, Fortaleza, Ceará, Brazil Center for Analysis and Process Development (NADP), Campus do Pici, Bl. 709, CEP 60455-760 Fortaleza, Ceará, Brazil Research Group Separations by Adsorption (GPSA), Department of Chemical Engineering, Technology Center, Federal University of Ceará, Fortaleza, Ceará, BrazilProduction of lactic acid by hydrothermal conversion of glycerol is an option to add value to the large amounts of glycerol that is being generated during the production of biodiesel. This work aimed to separate lactic acid by ion-exchange resins in a fixed-bed column. Adsorption isotherms were obtained from the breakthrough curves using different initial concentrations of lactic acid (60–302 g/l) and temperatures (30, 40 and 60 °C). Maximum adsorption capacities were estimated by the Langmuir model. Adsorption and desorption cycles for a binary and a real mixture were performed. The methodology proposed for the separation of lactic acid in a fixed-bed column presented high values of adsorptive capacity for both Amberlite IRA-96 and Amberlite IRA-67 resins at 30 °C. Lactic acid was more strongly adsorbed by Amberlite IRA-96 than the IRA-67 resin with maximum adsorption capacity of 544 and 341 g/l, respectively. Chromatographic experiments for the single-component solution (lactic acid), binary mixture (lactic acid and glycerol) and real mixture showed high values of recovery (29.2%, 31.3% and 23.5%, respectively) and productivity (3.14, 7.00 and 2.43 kg of lactic acid/kg resin. day).https://doi.org/10.1260/0263-6174.33.2.139 |
| spellingShingle | M.R.A. Arcanjo F.A.N. Fernandes I. J. Silva Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography Adsorption Science & Technology |
| title | Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography |
| title_full | Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography |
| title_fullStr | Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography |
| title_full_unstemmed | Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography |
| title_short | Separation of Lactic Acid Produced by Hydrothermal Conversion of Glycerol Using Ion-Exchange Chromatography |
| title_sort | separation of lactic acid produced by hydrothermal conversion of glycerol using ion exchange chromatography |
| url | https://doi.org/10.1260/0263-6174.33.2.139 |
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