コークス炉での廃プラスチックの化学リサイクル法の現状と今後の課題(<総説特集>使用済みプラスチックのリサイクル技術の現状)

概要

論文の詳細を見る
Chemical recycling of waste plastics using coke ovens has been conducted since 2000 at Nippon Steel Corporation. It is found that coke quality, such as coke strength (DI^<150>_<15>) and coke strength after reaction with C0_2 (CSR), deteriorates when the blending ratio of waste plastics in coal charge becomes higher than 1 mass% at the current process. In the lab-scale experiment, it is found that the surface area of waste plastics agglomerate strongly affects the deterioration of coke quality. Therefore, the suppression of the surface area of waste plastics agglomerate, be means of high-density and large-size agglomerate addition, was effective to suppress the coke quality deterioration in the lab-scale experiment. The effect was verified in the experiment using actual coke ovens. Hence, high-density and large-size agglomerate of waste plastics is found to be effective to suppress coke quality deterioration when the blending ratio of waste plastics in coal charge exceeds 1 mass%
一般社団法人日本エネルギー学会の論文
2007-11-20