SO2 Emission from Municipal Sewage Sludge Cocombustion with Bituminous Coal Under O2/CO2 Atmosphere Versus O2/N2 Atmosphere
| Autor: | Zhang Jinpeng, Cong Shengquan, Zhang Li-hui, Liu Jian, Zhang Yousong, Duan Feng |
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| Rok vydání: | 2013 |
| Předmět: |
Bituminous coal
Pollutant Flue gas Waste management General Chemical Engineering geology.rock_type geology Energy Engineering and Power Technology Municipal sewage Combustion complex mixtures respiratory tract diseases Atmosphere Fuel Technology Environmental science Limiting oxygen concentration Tube furnace |
| Zdroj: | Energy & Fuels. 27:7067-7071 |
| ISSN: | 1520-5029 0887-0624 |
| DOI: | 10.1021/ef401342x |
| Popis: | The cocombustion of municipal sewage sludge and bituminous coal has the advantages of both volume reduction and waste recycling. However, SO2 emission is the main pollutant from cocombustion. A tube furnace was used to study the effects of sludge mass percentage, oxygen concentration, and reaction temperature on the SO2 emission of cocombustion with bituminous coal under O2/CO2 or O2/N2 atmosphere. Results show that the values of the SO2 emission peaks decrease with increase of the sludge mass percentage, oxygen concentration, and reaction temperature. The resident time of initial SO2 emission peak is shortened with the increase of the above three factors. For the same O2 concentration in the simulated flue gas, the emission of SO2 from O2/CO2 cocombustion is obviously lower than that from O2/N2 combustion. The total amount of SO2 emission and its conversion rate decrease with the sludge mass percentage, and increase with oxygen concentration and reaction temperature. |
| Databáze: | OpenAIRE |
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