Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics
Thermal decomposition of different samples containing a mixture of plastics (polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and nylon) combined with NaCl and metal oxides (Fe2O3, CuO) was studied under an air atmosphere at 850 °C using a reactor, followed by analysi...
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-08-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/11/8/2014 |
| _version_ | 1817991480120180736 |
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| author | María E. Iñiguez Juan A. Conesa Andrés Fullana |
| author_facet | María E. Iñiguez Juan A. Conesa Andrés Fullana |
| author_sort | María E. Iñiguez |
| collection | DOAJ |
| description | Thermal decomposition of different samples containing a mixture of plastics (polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and nylon) combined with NaCl and metal oxides (Fe2O3, CuO) was studied under an air atmosphere at 850 °C using a reactor, followed by analysis of the evolved products. Combustion runs were performed to study how the presence of such compounds influences the production of pollutants. Here, we report the analyses of the emissions of the main gases, as well as volatiles and semivolatiles, including polyaromatic hydrocarbons (PAHs), polychlorinated benzenes and phenols, and polybrominated phenols. Results show that the production of chlorinated pollutants did not increase in the presence of NaCl, but the presence of other metals during the decomposition led to the production of a great amount of pollutants. In this regard, the emission of chlorinated phenols increased from 110 to ca. 250 mg/kg when the sample included a small quantity of a transition metal oxide. Additionally, the presence of an inhibitor—thiourea (TUA)—was tested. Results confirm that adding TUA to the sample reduced these emissions to a considerable extent, with the emission of chlorinated phenols amounting to 65 mg/kg. |
| first_indexed | 2024-04-14T01:13:51Z |
| format | Article |
| id | doaj.art-205c6a4f14e64c1980e554dd6643cf43 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-14T01:13:51Z |
| publishDate | 2018-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-205c6a4f14e64c1980e554dd6643cf432022-12-22T02:20:56ZengMDPI AGEnergies1996-10732018-08-01118201410.3390/en11082014en11082014Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of PlasticsMaría E. Iñiguez0Juan A. Conesa1Andrés Fullana2Department of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, SpainDepartment of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, SpainDepartment of Chemical Engineering, University of Alicante, P.O. Box 99, E-03080 Alicante, SpainThermal decomposition of different samples containing a mixture of plastics (polyethylene (PE), polypropylene (PP), polyethylene terephthalate (PET), and nylon) combined with NaCl and metal oxides (Fe2O3, CuO) was studied under an air atmosphere at 850 °C using a reactor, followed by analysis of the evolved products. Combustion runs were performed to study how the presence of such compounds influences the production of pollutants. Here, we report the analyses of the emissions of the main gases, as well as volatiles and semivolatiles, including polyaromatic hydrocarbons (PAHs), polychlorinated benzenes and phenols, and polybrominated phenols. Results show that the production of chlorinated pollutants did not increase in the presence of NaCl, but the presence of other metals during the decomposition led to the production of a great amount of pollutants. In this regard, the emission of chlorinated phenols increased from 110 to ca. 250 mg/kg when the sample included a small quantity of a transition metal oxide. Additionally, the presence of an inhibitor—thiourea (TUA)—was tested. Results confirm that adding TUA to the sample reduced these emissions to a considerable extent, with the emission of chlorinated phenols amounting to 65 mg/kg.http://www.mdpi.com/1996-1073/11/8/2014plastic mixturePAHsClBzsNaClcatalyzed mediuminhibition |
| spellingShingle | María E. Iñiguez Juan A. Conesa Andrés Fullana Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics Energies plastic mixture PAHs ClBzs NaCl catalyzed medium inhibition |
| title | Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics |
| title_full | Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics |
| title_fullStr | Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics |
| title_full_unstemmed | Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics |
| title_short | Effect of Sodium Chloride and Thiourea on Pollutant Formation during Combustion of Plastics |
| title_sort | effect of sodium chloride and thiourea on pollutant formation during combustion of plastics |
| topic | plastic mixture PAHs ClBzs NaCl catalyzed medium inhibition |
| url | http://www.mdpi.com/1996-1073/11/8/2014 |
| work_keys_str_mv | AT mariaeiniguez effectofsodiumchlorideandthioureaonpollutantformationduringcombustionofplastics AT juanaconesa effectofsodiumchlorideandthioureaonpollutantformationduringcombustionofplastics AT andresfullana effectofsodiumchlorideandthioureaonpollutantformationduringcombustionofplastics |