Coagulation Mechanism of Contaminations with Waste PET Bottles in Chemical Recycling(Thermal Engineering)

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  • PET樹脂のリサイクルにおける汚染・混合物の凝集機構の研究(熱工学,内燃機関,動力など)
  • PET樹脂のリサイクルにおける汚染・混合物の凝集機構の研究
  • PET ジュシ ノ リサイクル ニ オケル オセン コンゴウブツ ノ ギョウシュウ キコウ ノ ケンキュウ

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It is very important to remove contaminant fully from waste PET bottles for bottle-to-bottle recycling. We succeeded in solving the first step of mechanism to remove contaminant from waste PET bottles as has been mentioned in the former paper. In this paper the final step of mechanism is proposed. It is made up of the aggregation of contaminant based on the Brownian coagulation. We solved the kinetic equation of coagulation in the contaminant concentration less than 0.4% on a beaker scale. Then we confirmed the same equation on a industrial scale. We conclude that the contaminant on waste PET bottles is fully separated from PET bottles under the proper separating condition, such as the quantity of extract, separating temperature and time, not depending on the quantitative scale of separation, such as beaker scale or industrial scale.

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