Development of Waste Plastics Injection Process in Blast Furnace

スポンサーリンク

概要

• 論文の詳細を見る

• At Keihin No. 1 Blast Furnace, waste plastics recycling system was installed in Oct. 1996. Before the installation of that system, the behavior of waste plastics injected into the blast furnace has been studied with the raceway hot model and the commercial blast furnace so as to investigate the possibility of effective waste plastics utilization in the blast furnace. From the observation of plastics particle injected into the raceway of blast furnace, it was estimated that combustibility of coarse plastics was much different from that of pulverized coal. The combustion point of coarse plastics located to deep domain in raceway compared with that of pulverized coal. Although C1 –C4 hydrocarbons due to the decomposition of plastics was detected in in-furnace, the decomposition products of plastics in the blast furnace top gas and dust were the same as that of pulverized coal injection. The preparation method of plastics had an influence on the combustion and gasification behavior in the raceway. The coarse plastics gave high combustion and gasification efficiency compared with fine plastics and pulverized coal, and CO2 gasification rate of unburnt char derived from waste plastics was much higher than that of pulverized coal. Thus, it was concluded that coarse waste plastics could be effectively utilized as a reducing agent in the blast furnace. On the basis of above results, the waste plastics recycling system was designed.

• 社団法人 日本鉄鋼協会の論文
• 2000-03-15

著者

• Nemoto Kenichi

  Recycle Business Project Department Nkk Corporation

• Ariyama Tatsuro

  Materials And Processing Research Center Nkk Corp.

• Ariyama Tatsuro

  Materials & Processing Research Center Nkk Corporation

• Murai Ryota

  Materials And Processing Research Center Nkk Corp.

• ASANUMA Minoru

  Materials & Processing Research Center, NKK Corporation

• Asanuma M

  Materials & Processing Research Center Nkk Corporation

• Sato Michitaka

  Materials And Processing Research Center Nkk Corp.

• NONAKA Toshiharu

  Materials and Processing Research Center, NKK Corp.[

• OKOCHI Iwao

  Ironmaking Dept., FUKUYAMA Works, NKK Corp.

• TSUKIJI Hideaki

  Ironmaking Dept., KEIHIN Works, NKK Corp.

• Nonaka Toshiharu

  Materials And Processing Research Center Nkk Corp.[

• Okochi Iwao

  Ironmaking Dept. Fukuyama Works Nkk Corp.

• Tsukiji Hideaki

  Ironmaking Dept. Keihin Works Nkk Corp.

関連論文

• Development of new recycling process for ASR
• Recycling of Shredder Residue in Ironmaking Process
• Development of Waste Plastics Injection Process in Blast Furnace
• Design of Innovative Blast Furnace for Minimizing CO_2 Emission Based on Optimization of Solid Fuel Injection and Top Gas Recycling
• Development of Shaft-type Scrap Melting Process Characterized by Massive Coal and Plastics Injection
• High Rate Coal Injection of 218kg/t at Fukuyama No. 4 Blast Furnace
• Novel Catalyst Systems for Phenol Synthesis by Vapor Phase Oxidation of Benzoic Acid
• Combustion Behavior of Pulverized Coal in Tuyere Zone of Blast Furnace and Influence of Injection Lance Arrangement on Combustibility.

スポンサーリンク