Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis
Sewage sludge in China has the characteristics of low organic content and low heating value compared with other developed countries. Self-sustaining combustion of Chinese sludge cannot be achieved when the moisture content is high. Co-combusting a small amount of sludge in the existing coal-fired bo...
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| Format: | Article |
| Language: | English |
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MDPI AG
2017-12-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/10/12/1993 |
| _version_ | 1811187643623407616 |
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| author | Wendi Chen Fei Wang Altaf Hussain Kanhar |
| author_facet | Wendi Chen Fei Wang Altaf Hussain Kanhar |
| author_sort | Wendi Chen |
| collection | DOAJ |
| description | Sewage sludge in China has the characteristics of low organic content and low heating value compared with other developed countries. Self-sustaining combustion of Chinese sludge cannot be achieved when the moisture content is high. Co-combusting a small amount of sludge in the existing coal-fired boilers is a usual sludge disposal method in China. Thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis of a bituminous coal, three different sewage sludges, and their blends have been carried out. Fitted curves by linear calculation and actual curves of blends were compared to study the interaction between sludge and coal in their co-combustion process. The results indicate that the interaction between the two fuels takes place during the devolatilization and combustion period. Sludge acts as a catalyst for coal during the co-combustion process because of the large amount of inorganic salts contained in the sludge. Co-combustion of coal and sludge is more efficient than single burning of the two fuels. |
| first_indexed | 2024-04-11T14:06:50Z |
| format | Article |
| id | doaj.art-4a2b475a801f46a796b882560a83cbe9 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-11T14:06:50Z |
| publishDate | 2017-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-4a2b475a801f46a796b882560a83cbe92022-12-22T04:19:52ZengMDPI AGEnergies1996-10732017-12-011012199310.3390/en10121993en10121993Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric AnalysisWendi Chen0Fei Wang1Altaf Hussain Kanhar2State Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, ChinaState Key Laboratory of Clean Energy Utilization, Zhejiang University, Hangzhou 310027, ChinaSewage sludge in China has the characteristics of low organic content and low heating value compared with other developed countries. Self-sustaining combustion of Chinese sludge cannot be achieved when the moisture content is high. Co-combusting a small amount of sludge in the existing coal-fired boilers is a usual sludge disposal method in China. Thermogravimetric (TG) and differential scanning calorimetry (DSC) analysis of a bituminous coal, three different sewage sludges, and their blends have been carried out. Fitted curves by linear calculation and actual curves of blends were compared to study the interaction between sludge and coal in their co-combustion process. The results indicate that the interaction between the two fuels takes place during the devolatilization and combustion period. Sludge acts as a catalyst for coal during the co-combustion process because of the large amount of inorganic salts contained in the sludge. Co-combustion of coal and sludge is more efficient than single burning of the two fuels.https://www.mdpi.com/1996-1073/10/12/1993catalystcoal and sludgeco-combustionthermogravimetric (TG) analysis |
| spellingShingle | Wendi Chen Fei Wang Altaf Hussain Kanhar Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis Energies catalyst coal and sludge co-combustion thermogravimetric (TG) analysis |
| title | Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis |
| title_full | Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis |
| title_fullStr | Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis |
| title_full_unstemmed | Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis |
| title_short | Sludge Acts as a Catalyst for Coal during the Co-Combustion Process Investigated by Thermogravimetric Analysis |
| title_sort | sludge acts as a catalyst for coal during the co combustion process investigated by thermogravimetric analysis |
| topic | catalyst coal and sludge co-combustion thermogravimetric (TG) analysis |
| url | https://www.mdpi.com/1996-1073/10/12/1993 |
| work_keys_str_mv | AT wendichen sludgeactsasacatalystforcoalduringthecocombustionprocessinvestigatedbythermogravimetricanalysis AT feiwang sludgeactsasacatalystforcoalduringthecocombustionprocessinvestigatedbythermogravimetricanalysis AT altafhussainkanhar sludgeactsasacatalystforcoalduringthecocombustionprocessinvestigatedbythermogravimetricanalysis |