2014-04-012024-05-17https://scholars.lib.ntu.edu.tw/handle/123456789/679237摘要：化學吸附法近年受到國際上相當程度之重視，且原料來源種類廣泛。若以富含鹼土金屬之礦石與廢棄物作為化學吸附材時，除可利用高溫再生外，由於反應後的產物穩定，因此亦可作為建築用料。本團隊前期研究指出使用超重力旋轉填充床進行二氧化碳吸附，反應效果較傳統反應器優越許多，且反應時間、溫度與壓力也相對小很多，因此本研究計畫延續前期之研究，計畫目的包括：（一）開發新穎鹼性廢棄物吸附劑，改善超重力系統以提昇吸附量及再利用潛力；（二）建立超重力碳酸化預測模式，提出系統操作最佳化模組；（三）進行廢棄物再利用材質功能測試，研擬產物再利用途徑於綠色供應鏈；（四）建立產學合作平台，設置吸附法示範工廠。 本研究將利用鹼性固體廢棄物（例如：煉鋼爐渣、鍋爐飛灰、焚化爐底灰等）作為吸附劑，以其所含之鈣、鎂等鹼土金屬離子與高鹼性之特性，進行碳酸化反應捕捉二氧化碳，同時達到二氧化碳去除以及廢棄物安定化之目標；此外，吸附法捕捉二氧化碳程序技術評估，運用反應曲面法與生命週期評估，將實驗數據進行資料轉換，並選擇合適之生命週期衝擊評估模式，量化程序之環境衝擊。本研究同時著重於「技術開發」及「程序評估」兩部分，並進行程序經濟成本與環境效益分析，以確認二氧化碳捕捉實廠操作之經濟可行性與環境永續性。相關研究成果除可提供實廠操作可行性參考，更可提供產學間之合作關係及研發技術務實於程序，並於國內建立吸附法示範工廠，銜接國際碳封存技術之水平。<br> Abstract: Chemical adsorption processes have been considered as promising methods for CO2 capture and storage due to the availability of adsorbent feedstock. The nature ores and/or industrial alkaline solid wastes can be used as the feedstock for accelerated carbonation to form stable carbonate precipitation. In addition, the carbonated solid wastes can be further utilized as construction materials such as concrete in civil engineering. According to our previous study, the efficiency of carbonation reaction for alkaline solid wastes in a rotating packed bed (RPB) was superior to those in conventional reactors, with a relatively lower temperature and pressure. Therefore, the objectives of the project include (1) developing new alkaline solid wastes for carbonation and increasing the capture capacity of solid wastes and; (2) developing a prediction model for RPB process and proposing the best available technology (BAT) of carbonation process; (3) assessing the potence of utilization for carbonated wastes, and building the waste-to resource green supply chain; and (4) establishing the collaboration mechanism with industries and building up a pilot-scale CO2 capture demonstration plant of carbonation process. In this project, the alkaline solid wastes such as steelmaking slag, boiler fly ash and municipal solid waste incinerator bottom ash were utilized as the adsorbents for CO2 capture due to their highly alkaline properties. Both CO2 reduction and waste treatment or stabilization could be achieved by the proposed RPB process. In addition, both response surface methodology and life cycle assessment were utilized to propose the optimal operation modulus. Experimental data were utilized to quantify the environmental impacts and evaluate the engineering cost from the life cycle of process. Both the technology development and process assessment would be focused to evaluate the possibility and potency towards full-scale operation. Furthermore, the relevant research achievements can be used for evaluation of collaboration with industries in the future, thereby reaching the level of current technology and research around the world.超重力旋轉填充床礦化封存程序強化質傳模型生命週期評估成本效益分析Rotating Packed BedMineral SequestrationProcess IntensificationMass Transfer ModelLife Cycle AssessmentCost Benefit Analysis