108年度補助應回收廢棄物回收處理創新及研究發展計畫「利用超重力旋轉填充床於廢資訊主機板中IC晶片碳化處理之效能評估」
| 中文摘要 | 本研究與優勝奈米有限公司進行合作，利用超重力旋轉床進行IC碳化製程中產生之懸浮微粒減量去除效益評估。IC碳化過程中產生大量人體有害之懸浮微粒，超重力旋轉填充床可產生大量小液滴及液膜，可增加對液滴與懸浮微粒之碰撞機率，提升對懸浮微粒之捕捉去除效率。本研究目標包含不同操作條件下對於總懸浮微粒去除效率的影響：研究不同轉速、液體流量與進口濃度對於效率的影響，同時透過反應曲面方法，找出可達之最高效率操作條件，並透過半理論公式進行去除機制分析，同時將實驗結果進行擬合，進行效率預估，最後利用生命週期評估分析整個程序對環境之衝擊。研究結果發現提高轉速和液體流量皆會對去除效率有很大的提升，提高入口濃度亦可提高效率，但在高轉速與高液體流量下影響並不明顯。利用反應曲面法將轉速與流量進行操作最佳化，在實驗設備極限中所能達到之最高效率為99.5%，對應之條件為1740 rpm、1448 ml/min。透過半理論公式進行超重力旋轉填充床之去除機制進行了解，發現填充物與液滴皆對懸浮微粒有顯著的去除效果，低轉速時以填充物去除為主，反之高轉速液滴的去除才較為重要。透過實驗數據進行數據擬合同時也得到良好的相關性進行效率預測。 | ||
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| 中文關鍵字 | 超重力旋轉填充床、電子廢棄物回收、IC晶片碳化 | ||
基本資訊
| 專案計畫編號 | EPA-108-XB05 | 經費年度 | 108 | 計畫經費 | 1612.227 千元 |
|---|---|---|---|---|---|
| 專案開始日期 | 2019/01/01 | 專案結束日期 | 2019/11/30 | 專案主持人 | 蔣本基 |
| 主辦單位 | 回收基管會 | 承辦人 | 吳柏宏 | 執行單位 | 國立臺灣大學 |
成果下載
| 類型 | 檔名 | 檔案大小 | 說明 |
|---|---|---|---|
| 期末報告 | 期末報告.pdf | 8MB | 期末報告 |
Performance Evaluation of Carbonization Process for IC Chip of Waste Computer Board via High-gravity Rotating Packed Bed
| 英文摘要 | An integrated IC chip carbonization process and particles emission control using a high-gravity RPB was carried out in this study. The results indicate that the inlet particles concentration, high gravity factor and liquid-to-gas ratio was the main parameters affecting the particles removal efficiency in a RPB. It was found that the highest removal efficiency of 98.6% was achieved, corresponding to L/G ratio of 0.17, Co at 105.5±10 mg m-3 and high gravity factor of 124. In addition, the estimated particles capture capacity per power consumption achieving to 17.77 mg kWh-1 with 78% removal efficiency was also conducted thereby addressing an air-energy nexus issue. The maximal available particles removal efficiency was up to 99.5% verified by RSM, indicating a slop function of both operating parameters to predict the highest values. The semi-theoretical model was established to individually estimate the particles removal efficiency in the cavity and packing zone of RPB. The efficiency in cavity zone was depended on the droplet numbers which would be enhanced as raising the rotating speed. Furthermore, an empirical model based on the experimental data was also carried out to present a great agreement for predicted and experimental values. The aforementioned could provide a promising solution for particles emissions control from IC chip carbonization process. | ||
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| 英文關鍵字 | High-gravity rotating packed bed, E-waste recycling, IC chip carbonization | ||