Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc
In the present investigation grape marc was processed in a HTC batch reactor at different operating conditions: 180, 220, and 250 °C and 1, 3, and 8 h residence time. The mass yield of the resulting phases (gaseous, liquid and solid) was measured. The hydrochar and gas compositions were evaluated th...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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AIDIC Servizi S.r.l.
2015-05-01
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| Series: | Chemical Engineering Transactions |
| Online Access: | https://www.cetjournal.it/index.php/cet/article/view/4852 |
| _version_ | 1819284331063934976 |
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| author | M. Baratieri D. Basso F. Patuzzi D. Castello L. Fiori |
| author_facet | M. Baratieri D. Basso F. Patuzzi D. Castello L. Fiori |
| author_sort | M. Baratieri |
| collection | DOAJ |
| description | In the present investigation grape marc was processed in a HTC batch reactor at different operating conditions: 180, 220, and 250 °C and 1, 3, and 8 h residence time. The mass yield of the resulting phases (gaseous, liquid and solid) was measured. The hydrochar and gas compositions were evaluated through elemental analysis and gas-chromatography, respectively. The experimental results allowed to calibrate a kinetics model, based on a two-step reaction mechanism. The activation energy and pre-exponential factor of the various degradation reactions were determined by means of least square optimization versus the experimental data. A simplified dynamic analytic model was also built – based on lumped capacitance method– in order to simulate the thermal behavior of the system, using the actual temperature profile imposed by the reactor external heater. A resistance-capacitance network was used to describe the system, taking into account the thermo-physical properties of the systems (i.e. reactor shell, gaseous and liquid phases). This simplified tool supplemented with the calibrated kinetics model represents a first step in the characterization of the HTC process performance under different operative conditions. |
| first_indexed | 2024-12-24T01:45:40Z |
| format | Article |
| id | doaj.art-bacd3f85a3f349b8a5cebb5a7a3ba4cd |
| institution | Directory Open Access Journal |
| issn | 2283-9216 |
| language | English |
| last_indexed | 2024-12-24T01:45:40Z |
| publishDate | 2015-05-01 |
| publisher | AIDIC Servizi S.r.l. |
| record_format | Article |
| series | Chemical Engineering Transactions |
| spelling | doaj.art-bacd3f85a3f349b8a5cebb5a7a3ba4cd2022-12-21T17:21:53ZengAIDIC Servizi S.r.l.Chemical Engineering Transactions2283-92162015-05-014310.3303/CET1543085Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape MarcM. BaratieriD. BassoF. PatuzziD. CastelloL. FioriIn the present investigation grape marc was processed in a HTC batch reactor at different operating conditions: 180, 220, and 250 °C and 1, 3, and 8 h residence time. The mass yield of the resulting phases (gaseous, liquid and solid) was measured. The hydrochar and gas compositions were evaluated through elemental analysis and gas-chromatography, respectively. The experimental results allowed to calibrate a kinetics model, based on a two-step reaction mechanism. The activation energy and pre-exponential factor of the various degradation reactions were determined by means of least square optimization versus the experimental data. A simplified dynamic analytic model was also built – based on lumped capacitance method– in order to simulate the thermal behavior of the system, using the actual temperature profile imposed by the reactor external heater. A resistance-capacitance network was used to describe the system, taking into account the thermo-physical properties of the systems (i.e. reactor shell, gaseous and liquid phases). This simplified tool supplemented with the calibrated kinetics model represents a first step in the characterization of the HTC process performance under different operative conditions.https://www.cetjournal.it/index.php/cet/article/view/4852 |
| spellingShingle | M. Baratieri D. Basso F. Patuzzi D. Castello L. Fiori Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc Chemical Engineering Transactions |
| title | Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc |
| title_full | Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc |
| title_fullStr | Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc |
| title_full_unstemmed | Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc |
| title_short | Kinetic and Thermal Modeling of Hydrothermal Carbonization Applied to Grape Marc |
| title_sort | kinetic and thermal modeling of hydrothermal carbonization applied to grape marc |
| url | https://www.cetjournal.it/index.php/cet/article/view/4852 |
| work_keys_str_mv | AT mbaratieri kineticandthermalmodelingofhydrothermalcarbonizationappliedtograpemarc AT dbasso kineticandthermalmodelingofhydrothermalcarbonizationappliedtograpemarc AT fpatuzzi kineticandthermalmodelingofhydrothermalcarbonizationappliedtograpemarc AT dcastello kineticandthermalmodelingofhydrothermalcarbonizationappliedtograpemarc AT lfiori kineticandthermalmodelingofhydrothermalcarbonizationappliedtograpemarc |