Recycling of Plastic Waste in Blast Furnace.
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概要
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The recycling of waste plastics in the blast furnace has been in-vestigated with the test furnace and the commercial blast furnace. From the results of these experiments, it was found that the combustion and gasification behavior of waste plastics injected into the raceway of the blast furnace was much different from those of pulverized coal. Pulverized coal injected into raceway was consumed in the combustion zone of the raceway and converted into CO<SUB>2</SUB> and H<SUB>2</SUB>O rapidly. On the other hand, waste plastics was mainly converted into CO and H<SUB>2</SUB> by gasification with CO2 generated in the combustion zone of the raceway. Combustion and gasification efficiency of waste plas-tics was much higher than that of pulverized coal in spite of large particle. Waste plas-tics like -10mm particle can be effectively gasified due to the circulation effect of coarse particle in the raceway. Recycling effciency of waste plastics in the blast furnce was estimated to be 76%. It is considered that waste plastics injection into the blast furnace is a favorable way to realize material recycling of waste plastics and to solve environ-mental issue.
- 一般社団法人 日本エネルギー学会の論文
一般社団法人 日本エネルギー学会 | 論文
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