【學術亮點】Magnesium carbonate granule formation from carbonate precursors in a fluidized-bed crystallization system
Facility Agricultural: Utilization of Livestock Waste in Automated Cultivation of Microalgae and Reutilization in Poultry Farming【Department of Environmental Engineering / Lu, Ming-Chun / Distinguished Professor】
設施農業：畜牧廢棄物於小球藻自動栽培與禽類再利用【環境工程學系/盧明俊特聘教授】
| 論文篇名 | 英文：Magnesium carbonate granule formation from carbonate precursors in a fluidized-bed crystallization system 中文：應用流體化床均質結晶技術以碳酸鎂顆粒形式捕集二氧化碳 |
| 期刊名稱 | Journal of Water Process Engineering |
| 發表年份,卷數,起迄頁數 | 2025, 77, no.108373 |
| 作者 | Huang, Jing-Wei; Ha, Thi-Hanh; Abarca, Ralf Ruffel M.; Lu, Ming-Chun(盧明俊)* |
| DOI | 10.1016/j.jwpe.2025.108373 |
| 中文摘要 | 化石燃料使用與工業活動日益增加，導致二氧化碳（CO₂）排放急劇上升，對氣候變遷造成重大影響。碳捕集與利用技術提供了一項具潛力的解決方案，可減少大氣中CO₂並將其轉化為有價產品。本研究聚焦於在控制條件下，CO₂與液態鎂源反應以合成並回收碳酸鎂顆粒。研究深入探討pH值、表面負載量、[Mg]₀/[CO₃]₀莫耳比及鈣等干擾離子對流體化床均質結晶（FBHC）中碳酸鎂造粒過程的影響。在最佳條件下（pH 10.0、莫耳比1、橫截面負載量55.0 kg/m²·h），碳酸根與鎂的結晶率（CR）與總去除率（TR）均超過50%。本研究突顯了將工業可得CO₂轉化為功能性碳酸鎂顆粒的潛力，促進CO₂與鎂資源的有效利用。 |
| 英文摘要 | The growing use of fossil fuels and industrial activities has led to a surge in CO₂ emissions, significantly impacting climate change. Carbon capture and utilization technologies provide a promising solution to reduce atmospheric CO₂ and convert it into valuable products. This study focuses on the synthesis and recovery of magnesium carbonate particles via the reaction of CO₂ with liquid magnesium sources under controlled conditions. The impact of pH, surface loading, [Mg]₀/[CO₃]₀ molar ratio, and interference ions such as calcium on the process of magnesium carbonate synthesis granulation through fluidized-bed homogeneous crystallization (FBHC) has been extensively investigated. Under optimal conditions (pH 10.0, [Mg]₀/[CO₃]₀ molar ratio of 1, and cross-sectional loading of 55.0 kg m−2 h−1), the crystallization ratio (CR) and total removal (TR) of both carbonate and magnesium exceeded 50 %. This work highlights the potential for converting industrially available CO₂ into functional magnesium carbonate granules, promoting the resource utilization of both CO₂ and magnesium. |
| 發表成果與本中心研究主題相關性 | 本研究所探討之流體化床均質結晶（FBHC）技術，雖聚焦於CO₂與鎂反應生成碳酸鎂顆粒，但其結晶機制與操作參數亦可延伸應用於畜牧廢水中營養源（如氮與磷）的回收。FBHC具備高結晶效率與資源化潛力，可促進磷酸銨鎂（MAP）等肥料型晶體形成，實現氮磷的高值利用與減碳目標。此技術有助於畜牧廢水處理與循環經濟推動，並與永續發展目標相契合。 |
