研究生: |
張家諭 Zhang, Jia Yu |
---|---|
論文名稱: |
旋轉床與固定床捕獲高爐燃燒尾氣之二氧化碳效能比較與溶劑評估 Compared Rotating Packed Bed and Packed Bed Capture CO2 from Blast Furnace Vent and Solvent Assessment |
指導教授: |
鄭西顯
Jang, Shi Shang |
口試委員: |
張玨庭
汪上曉 錢義隆 |
學位類別: |
碩士 Master |
系所名稱: |
工學院 - 化學工程學系 Department of Chemical Engineering |
論文出版年: | 2015 |
畢業學年度: | 103 |
語文別: | 中文 |
論文頁數: | 84 |
中文關鍵詞: | 二氧化碳 、旋轉床 |
相關次數: | 點閱:134 下載:0 |
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「溫室效應」為工業革命以來全球平均溫度明顯上升之主要原因,造成「溫室效應」最可能原因之一為石化燃料大量使用使得大氣層中CO2濃度明顯增加,為了抑制CO2濃度攀升,「節能減碳」已成為國家能源環境政策發展之重點項目。為此我們於鋼鐵廠及實驗室內各建立一套CO2吸收示範設備,應用各種吸收劑作為相關研究之依據,並提供製程改善方法以達到節能效果。
本研究以化學吸收法利用30wt% MEA和4mPZ+4mDETA水溶液作為吸收劑捕獲CO2,並串聯超重力旋轉床(Rotating packed bed,RPB)和氣提塔,建立吸收脫附循環,取代傳統吸收塔以縮減傳統化學吸收製程所需之龐大設備體積並減少再生能耗。由於超重力旋轉床被研究出可以提升氣液接觸表面積,本研究將在相同操作條件下,分別在固定床及旋轉床進行兩者二氧化碳捕獲效率比較,實驗結果發現兩者捕獲效率相近,但旋轉床的體積為固定床的體積1/3倍,顯示以超重力旋轉床取代傳統填充床之可行性。
Greenhouse effect main reason for the significant increase in global average temperatures since the industrial revolution. Greenhouse effect is most likely one of the reasons for the extensive use of fossil fuels so that the CO2 concentration in the atmosphere increased significantly. In order to suppress the rise in CO2 concentration, Energy saving and carbon reduction have become the key projects of the National Energy Policy Development Environment. For this purpose, we build a carbon capture system in steel plant and laboratory. As a basis for the application of various absorbents related research, and provide process improvement methods to achieve energy savings.
The study capture CO2 by 30wt% MEA solution and 4mPZ+4mDETA solution that was carried out in rotating packed bed connected gas stripper. The conventional packed bed absorber and stripper were replaced by a rotating packed bed for reducing the volumes of conventional packed bed absorber and stripper and the regeneration energy of chemical absorbent in CO2 capture process. Developed as a result of gravity rotating bed can improve the gas-liquid contact surface area. In the study, compared with conventional packed bed and rotating packed bed for CO2 capture efficiency at same fixed operation condition. It was found that both capture efficiency are similar, but the volume of rotating bed is the volume of the conventional packed bed 1/3 times.
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