• 作者： Gu, Jiuann-Shiow; Lin, Chun-I
• 中文摘要： 本文報告利用熱分析儀、掃描電子顯微鏡和表面積儀來研究碳酸鎂和二氧化硫、氧、氮混合氣之反應性、反應能力及固體樣品表面積變化之實驗結果。實驗結果顯示,增加混合氣流速、反應溫度、二氧化硫濃度或氧氣濃度可以增進硫酸化速率及硫酸化能力。減少固體樣品重量、減少煆燒時間或降低煆燒溫度亦可增進硫酸化速率及硫酸化能力。其中硫酸化溫度、最初固體樣品重及煆燒溫度的影響較大。實驗結果亦顯示,增加煆燒溫度或增加煆燒時間都會降低固體樣品之表面積。增加硫酸化溫度會減少固體樣品的表面積,但影響力不大。
• 英文摘要： The reactivity and the capacity of sulfation of magnesium carbonate with gaseous mixture of sulfur dioxide, oxygen and nitrogen as well as the change of surface area of sample have been studied in a thermogravimetric analyzer along with scanning electron microscope and the surface area meter. The experimental results indicate that the rate and the capacity of sulfation can be increased by increasing the flow rate of gaseous mixture, the sulfation temperature, the concentration of SO/sub 2/ or the concentration of O/sub 2/. They can also be increased by decreasing the sample weight, the calcination time, or the calcination temperature. Sulfation temperature, initial weight of sample and calcination temperature are the most important factors influencing the rate and the capacity of sulfation. The results also reveal that increase of calcination temperature or calcination time may reduce the surface area of the solid sample. Increasing sulfation temperature may reduce the surface area of the sulfated sample, but the effect is found to be weak.
• 中文關鍵字： 硫酸化; 碳酸鎂; 煙道氣去硫化(煙道除硫); 氣固反應; 煆燒
• 英文關鍵字： Sulfation; Magnesium Carbonate; Flue Gas Desulfurization; Gas-Solid Reaction; Calcination (Calcinating)