2018-01-012024-05-14https://scholars.lib.ntu.edu.tw/handle/123456789/657579摘要：國內資源回收處理機構於拆解具冷陰極燈管之液晶顯示器時如果不慎造成燈管破裂，部分高揮發性汞成分將揮發出來進入氣相，如無有效收集逸散汞不但危害作業人員健康，並將嚴重造成環境衝擊。但目前國內受補貼機構對於如何設置確實、有效之汞蒸氣吸附裝置並不清楚，也尚無公告之基準規格可用於汞蒸氣吸附裝置設計。汞蒸氣吸附裝置效率決定於含硫活性碳用量，汞蒸氣濃度、汞吸附容量與吸附動力、吸附劑更換頻率、蒸氣停留時間等，故本研究主要目標包含：（1）商用活性碳取得與新穎除汞碳合成；（2）活性碳吸附實驗；以及（3）活性碳床吸附動力分析與吸附床設計/較適操作條件參數獲得。本研究取得一種進口含硫活性碳與自製含硫活性碳，藉由吸附平衡實驗優選出適合應用於回收業者條件之含硫活性碳。本研究亦嘗試以某油品提煉程序後所產生的含硫廢焦碳作為活性碳之起始原料，利用更節能的微波活化法，並結合反應曲面設計法，以不同活化劑比例、不同微波時間/功率條件，合成出具有不同物化特性之含硫活性碳，以探討資源回收此類高含硫碳基廢棄物的可能性。最後藉由模式分析，獲得吸附床之設計參數與較適操作條件，可有效提供回收業者作為吸附床設計與操作規範。<br> Abstract: When a recycling plant dismantles the waste liquid crystal displays containing cold cathode fluorescent lamps (CCFLs), highly volatile mercury (Hg) could emit into gaseous environment due to accident breakage of the CCFLs. The vaporized Hg could severely damage the health of the operating persons and significantly impact the environment. However, the recycling plants generally lack of sufficient knowledge on how to set up an effective Hg adsorber. Additionally, standards and regulations on design, specification, and effectiveness of Hg adsorber are not yet announced by the government. The effectiveness of Hg adsorber is determined by the amount and properties of adsorbent (typically sulfur-containing activated carbon, SAC), inlet Hg concentration, adsorption capacity and kinetics, carbon replace frequency, and gas retention time. The goals of this project are (1) acquiring commercial SAC and preparing novel Hg adsorbent, (2) performing Hg adsorption tests, and (3) conducting kinetic analysis of Hg adsorption breakthrough curves and obtaining designing parameters and suitable operating parameters of Hg adsorber. To prepare novel Hg adsorbent, a high-sulfur containing char from oil refinery processes, will be selected as the precursor to produce activated carbon via microwave-assisted activation, which is more energy-effective as compared to traditional thermal treatment. The variable of microwave-assisted activation includes the ratio of activating agent, microwave time, and microwave power. The numerical values of these variables are determined based on the response surface methodology (RSM). After Hg adsorption breakthrough curves are obtained, kinetic simulations will be conducted and designing parameters as well as suitable operating parameters of Hg adsorber will be obtained. The results from this study could provide the recycling plants useful information in adsorbent selections, in establishing an effective Hg adsorber, and in effectively and economically operating the Hg adsorber.液晶顯示器汞廢焦碳活性碳微波活化LCDmercurywaste cokeactivated carbonmicrowave activation