Abstract
In order to cope with recent climate change, Korea is reducing the use of heavy oil in petroleum-fired power plants and mixing bio-oils. Accordingly, this must be taken into account when calculating the emissions of air pollutants. However, in the case of Korea, when calculating NH3 emissions, the United States Environmental Protection Agency (EPA) emission factor is applied as it is to calculate emissions, and for petroleum power plants, the heavy oil emission factor proposed by EPA is used as it is to calculate emissions. In petroleum power plants, bio-oil is not mixed in a certain amount and used at a different ratio depending on the situation of the power plant. Therefore, in this study, the NH3 emission factor according to the mixing ratio of bio-heavy oil is calculated and the mixing ratio is calculated. As a result of the analysis, the emission factor according to bio-oil and the mixed ratio was found to be in the range of 0.010~0.033 kg NH3/kL, and it was lower than the heavy oil emission factor 0.096 kg NH3/kL of EPA currently used in Korea. This is because the amount of NH3 through the slip is also small since the use of NH3 for reduction is also low because the NOx emission from the use of bio-oil is low. Considering all of these points, we have statistically analyzed whether emission factors should be developed and applied. As a result of the confirmation, the difference according to the mixed consumption rate was not large.
Highlights
As the use of fossil fuels has increased, problems associated with climate change have become serious
In the case of oil-fired power plants, emissions are estimated by applying the US Environmental Protection Agency (EPA) NH3 emissions factor for heavy oil, but estimates of NH3 emissions for South Korea should consider that many facilities in the country currently use a bio-oil/heavy oil mixture or 100% bio-oil to run power plants in response to climate change
Because the bio-oil mixing ratio is different depending on the situation at individual power plants, this study used statistical analysis to determine whether that fact should be considered when developing
Summary
As the use of fossil fuels has increased, problems associated with climate change have become serious. Power plants are among the sources of NH3 emissions in South Korea. They use selective catalytic reduction (SCR) and selective non-catalytic reduction (SNCR) as preventive measures to reduce emissions of air pollutants such as NOx. SCR and SNCR are methods of reducing NOx levels using NH3 ; if NH3 is used excessively for NOx reduction, slip may occur [9,10,11,12,13]. This is because many power plants are generating power by mixing bio-oil in their fuel or using 100% bio-oil as renewable energy in response to climate change. The NH3 emission coefficient was calculated based on the mixing rate of bio-oil and the 100% use of bio-oil. It was investigated through statistical analysis whether the mixed consumption ratio of bio-oil, which is applied in various ways, should be considered when developing NH3
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
