Behavior analysis for separation of heavy metalcompounds in exhaust gas in waste heat treatment process

废热处理废气中重金属化合物分离行为分析

• 批准号: 14380267
• 负责人: HATA Mitsuhiko
• 金额: $ 9.79万
• 依托单位: Kanazawa University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2004
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-14380267/
• 关键词: Heat treatment of waste; Heavy metal compounds; Gas treatment; Consistent separation; Particle generation; Residence time; Reaction rate; High temperature gas cleaning; 有機脱水汚泥; 廃棄物; 重金属化合物; 熱力学平衡計算; ダスト; 溶融; 存在形態; 下水脱水汚泥; 平衡計算; セラミックフィルタ

To analyze behavior of heavy metal compounds in exhaust gas from waste heat treatment process, single straight tube type simulator has been developed. The simulator is capable of simulating status change of exhaust gas components such as heavy metals and toxic gases as SO_2 and HCl. Calculated and experimental states of exhaust gas through the simulator by controlled temperature and flow rate have been compared. To discuss possibility of heavy metal compounds separation technology from industrial waste, following items have been discussed.1)Experimental investigation of heavy metals behavior in waste heat treatment process simulatorWaste heat treatment process simulator which consists of waste heat treatment exhaust gas generator and state-controlled sampler has been developed. The exhaust gas can treat wastes up to 1100℃ and provide exhaust gas up to 10L/min to the state-controlled sampler. For particulate and gas sampling from exhaust gas at various temperatures, the state-controlled … More sampler has three stage quartz filter thimbles at independently-controlled temperature from 800 to 200℃ through a straight sampling tube. Behavior of heavy metals has been investigated by temperature and residence time which has been controlled by flow-rate and quartz filter thimbles' position. From the results, particle generation ratio difference by temperature and residence time has been observed.2)State estimation of exhaust gas include heavy metals by thermodynamic equilibrium simulationExhaust gas state through the state-controlled sampler has been simulated by thermodynamic equilibrium calculation. From the result, heavy metals compounds state has been changed by sampling temperature and gas composition. Therefore, possibility of heavy metals separation technology has been indicated.3)State change estimation of heavy metals in exhaust gas by reaction kinetics theoryLead compounds particle generation rate in exhaust gas by temperature has been investigated by reaction kinetics calculation. From the results, particle generation mechanism has been suggested to be rather phase change such as condensation than chemical reaction.4)Investigation of effective method of heavy metals separationFrom the all discussions above, most effective condition settings for heavy metals separation such as sampling temperature and residence time have been discussed. Less

为了分析废热处理废气中重金属化合物的行为，开发了单直管式模拟器。该模拟器能够模拟重金属、SO_2、HCl等有毒气体等废气成分的状态变化。通过控制温度和流量对通过模拟器的废气的计算状态和实验状态进行了比较。为了探讨工业废物中重金属化合物分离技术的可能性，主要进行了以下几方面的讨论：1)废热处理过程模拟器中重金属行为的实验研究开发了由废热处理废气发生器和状态控制采样器组成的废热处理过程模拟器。废气处理温度可达1100℃，向国控采样器提供高达10L/min的废气。对于不同温度下废气中的颗粒物和气体采样，国控采样器具有三级石英过滤顶针，通过直采样管可独立控制温度在800至200℃之间。通过温度和停留时间来研究重金属的行为，温度和停留时间由流速和石英过滤器套管的位置控制。从结果中观察到颗粒生成率随温度和停留时间的变化。2)通过热力学平衡模拟对含有重金属的废气进行状态估计通过状态控制采样器通过热力学平衡计算模拟了废气状态。从结果来看，重金属化合物的状态随着采样温度和气体成分的变化而改变。因此,揭示了重金属分离技术的可能性。3)反应动力学理论估计废气中重金属的状态变化通过反应动力学计算,研究了废气中铅化合物颗粒随温度变化的生成速率。从结果来看，颗粒生成机制被认为是相变，例如冷凝，而不是化学反应。4）重金属分离有效方法的研究从上面的所有讨论中，已经讨论了重金属分离的最有效的条件设置，例如采样温度和停留时间。较少的

项目成果

Characterization and Modeling Filtration in a Granular Coke Bed

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• 发表时间: 2004
• 期刊: Ceramic Transactions "Characterization & Control of Interfaces for High Quality Advanced Materials" 146
• 作者: M.Furuuchi;M.Hata;C.Kanaoka;R.Takahashi;J.Yagi;R.Takehama;Y.Kawaminami
• 通讯作者: Y.Kawaminami

M.Hata, M.Furuuchi, C.Kanaoka, R.Kurose, H.Makino: "Observation of Dust Release Behavior from Ceramic Filter Element"Journal of Advanced Powder Technology. 14・6. 719-734 (2003)

M.Hata、M.Furuuchi、C.Kanaoka、R.Kurose、H.Makino：“陶瓷过滤元件粉尘释放行为的观察”《先进粉末技术杂志》14・6（2003）。

Combustibility of dried sewage sludge and its mineral transformation at different oxygen content in drop tube furnace

• DOI: 10.1016/j.fuproc.2003.10.021
• 发表时间: 2004-07
• 期刊: Fuel Processing Technology
• 影响因子: 7.5
• 作者: Lian Zhang;Masahide Ito;A. Sato;Y. Ninomiya;T. Sakano;Chikao Kanaoka;M. Masui

Y.Ninomiya, L.Zhang, T.Sakano, C.Kanaoka, M.Masui: "Transformation of Mineral and Emission of Particulate Matters during Co-combustion of Coal with Sewage Sludge"Fuel. 83・6. 751-764 (2004)

Y. 二宫、L. 张、T. Sakano、C. Kanaoka、M. Masui：“煤与污水污泥共燃烧过程中的矿物质转化和颗粒物排放”燃料 751-764。 ）

The influence of humidity on dry separation of granular particles based on geometrical characteristics

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• 发表时间: 2005
• 期刊: Powder Technology (印刷中)
• 作者: M.Furuuchi;K.Gotoh;C.Kanaoka
• 通讯作者: C.Kanaoka