| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2016: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2015: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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| Outline of Final Research Achievements |
Multiple types of coal were pyrolyzed to obtain coke particles with different properties (melting point, amount of ash, caking and agglomerating properties). The coke particles were arranged to form layers and they were combusted. The effects of various factors on PM formation were then investigated.
(1) PM 2.5 was easily formed in a low temperature atmosphere (below 1000°C).(2) Combustion of coke particles produced from ash with a low melting point (approximately 1230°C) resulted in formation of lower amounts of PM 2.5 than combustion of coke particles from ash with a high melting point (approximately 1450°C). This is because the melting and coalescence of ash particles were easier in the former ash than in the latter ash.(3) The PM 2.5 formation can be suppressed by blending coal containing ash with a low melting point. In addition, The PM 2.5 formation can be suppressed by blending coal with a high value of the indicator.
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