Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace
The combustion characteristics of co-firing bio-oil produced from the fast pyrolysis process of coffee bean residue and diesel in a 300-kWth oil-fired furnace are investigated. Using bio-oil to completely replace fossil fuels has limitations since bio-oil has undesirable properties, such as high wat...
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| Format: | Article |
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MDPI AG
2017-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/7/10/1085 |
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| author | Shuhn-Shyurng Hou Wei-Cheng Huang Ta-Hui Lin |
| author_facet | Shuhn-Shyurng Hou Wei-Cheng Huang Ta-Hui Lin |
| author_sort | Shuhn-Shyurng Hou |
| collection | DOAJ |
| description | The combustion characteristics of co-firing bio-oil produced from the fast pyrolysis process of coffee bean residue and diesel in a 300-kWth oil-fired furnace are investigated. Using bio-oil to completely replace fossil fuels has limitations since bio-oil has undesirable properties, such as high water and oxygen contents, high viscosity, and low heating value. However, a low blend ratio of bio-oil used as a substitute for petroleum-derived oil has advantages; i.e., it can be easily combusted in existing furnaces without modifications. Thus, a promising solution is the partial substitution of diesel with bio-oil, rather than completely replacing it. A furnace test is performed for diesel alone and bio-oil/diesel blends with 5 vol % bio-oil. The results show that excellent stable combustion is observed during the co-firing test. Compared with diesel, with 5 vol % bio-oil content in the blends, both the wall temperature and gas temperature drop only slightly and exhibit similar furnace temperature distribution; meanwhile, comparable NO emissions (smaller than 57 ppm) are obtained, and lower CO2 emissions are achieved because biomass is both carbon neutral and renewable. Moreover, SO2 and CO emissions under these two burning conditions are very low; SO2 and CO emissions are smaller than 6 and 35 ppm, respectively. |
| first_indexed | 2024-12-11T06:23:09Z |
| format | Article |
| id | doaj.art-93157bf4d1e946e1afa5df664318db41 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-12-11T06:23:09Z |
| publishDate | 2017-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-93157bf4d1e946e1afa5df664318db412022-12-22T01:17:45ZengMDPI AGApplied Sciences2076-34172017-10-01710108510.3390/app7101085app7101085Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired FurnaceShuhn-Shyurng Hou0Wei-Cheng Huang1Ta-Hui Lin2Department of Mechanical Engineering, Kun Shan University, Tainan 71070, TaiwanDepartment of Mechanical Engineering, Kun Shan University, Tainan 71070, TaiwanDepartment of Mechanical Engineering, National Cheng Kung University, Tainan 70101, TaiwanThe combustion characteristics of co-firing bio-oil produced from the fast pyrolysis process of coffee bean residue and diesel in a 300-kWth oil-fired furnace are investigated. Using bio-oil to completely replace fossil fuels has limitations since bio-oil has undesirable properties, such as high water and oxygen contents, high viscosity, and low heating value. However, a low blend ratio of bio-oil used as a substitute for petroleum-derived oil has advantages; i.e., it can be easily combusted in existing furnaces without modifications. Thus, a promising solution is the partial substitution of diesel with bio-oil, rather than completely replacing it. A furnace test is performed for diesel alone and bio-oil/diesel blends with 5 vol % bio-oil. The results show that excellent stable combustion is observed during the co-firing test. Compared with diesel, with 5 vol % bio-oil content in the blends, both the wall temperature and gas temperature drop only slightly and exhibit similar furnace temperature distribution; meanwhile, comparable NO emissions (smaller than 57 ppm) are obtained, and lower CO2 emissions are achieved because biomass is both carbon neutral and renewable. Moreover, SO2 and CO emissions under these two burning conditions are very low; SO2 and CO emissions are smaller than 6 and 35 ppm, respectively.https://www.mdpi.com/2076-3417/7/10/1085bio-oilfast pyrolysisfurnacecombustion characteristicscoffee bean residueco-firing |
| spellingShingle | Shuhn-Shyurng Hou Wei-Cheng Huang Ta-Hui Lin Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace Applied Sciences bio-oil fast pyrolysis furnace combustion characteristics coffee bean residue co-firing |
| title | Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace |
| title_full | Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace |
| title_fullStr | Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace |
| title_full_unstemmed | Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace |
| title_short | Co-Combustion of Fast Pyrolysis Bio-Oil Derived from Coffee Bean Residue and Diesel in an Oil-Fired Furnace |
| title_sort | co combustion of fast pyrolysis bio oil derived from coffee bean residue and diesel in an oil fired furnace |
| topic | bio-oil fast pyrolysis furnace combustion characteristics coffee bean residue co-firing |
| url | https://www.mdpi.com/2076-3417/7/10/1085 |
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