Development of Safe Gasification Process of Waste Wood Containing Heavy Metals

含重金属废木材安全气化工艺的开发

• 批准号: 21760598
• 负责人: MATSUURA Hiroyuki
• 金额: $ 2.91万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (B)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2010
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21760598/
• 关键词: CCA処理木材; 重金属; バイオマス; サーマルリサイクル; CCA; 木材; ガス化; クロム; 銅; ひ素

Since the waste wood treated by preservatives containing heavy metals contains heavy metals, it may cause the environmental pollution or destruction of ecological systems if waste wood is treated without appropriate measures. In the present study, the utilization of waste wood treated by CCA preservative as an energy source by thermal recycling is considered and thus development of safe gasification process is the target of this study. While most of copper and chromium remains in the residue, arsenic vaporized to gas phase by gasification considerably and the fraction of vaporized arsenic increased with temperature. It is important to gasify waste wood at lower temperature or to add proper materials to stabilize arsenic in the gasification residue.

由于用含重金属防腐剂处理过的废木材含有重金属，如果不采取适当措施处理，可能会造成环境污染或生态系统破坏。本研究考虑利用经CCA防腐剂处理的废木材作为热回收的能源，因此开发安全的气化工艺是本研究的目标。而大部分铜和铬留在残渣中，砷通过气化大量汽化到气相，汽化砷的比例随着温度的升高而增加。在较低的温度下气化废木材或添加适当的物质来稳定气化残渣中的砷是很重要的。

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