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題 名 | Enhancement of the Reactivities of Iron Blast Furnace Slag/Hydrated Lime Sorbents toward SO[feaf]by NaOH=氫氧化鈉對爐石/氫氧化鈣吸收劑與二氧化硫之反應性之促進作用研究 |
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作 者 | 劉瓊芳; 施信民; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷 期 | 34:5 2003.09[民92.09] |
頁 次 | 頁525-530 |
分類號 | 445.63 |
關鍵詞 | 氫氧化鈉; 爐石氫氧化鈣; 煙道氣除硫吸收劑; 潮解性質; Iron blast furnace slag; Hydrated lime; SO[feaf]; Flue gas desulfurization; Reaction kinetics; |
語 文 | 英文(English) |
中文摘要 | 本研究於爐石/氫氧化鈣泥漿中添加氫氧化鈉以製備煙道氣除硫吸收劑。由於氫氧化鈉的潮解性質,使較多的水分能吸附在吸收劑表面,提高了吸收劑與二氧化硫的反應性。未添加氫氧化鈉的爐石/氫氧化鈣吸收劑與二氧化硫反應的鈣利用率與二氧化硫捕捉率隨漿化溫度的增加而增加,且隨爐石/氫氧化鈣重量配比而改變;添加氫氧化鈉後,吸收劑之鈣利用率幾乎相同,不受漿化溫度與重量配比影響。添加氫氧化鈉可以提昇吸收劑之反應性,並且可降低半乾式或乾式煙道氣除硫程序的成本。 |
英文摘要 | NaOH was added to iron blast furnace slag (BFS)/hydrated lime (HL) slurries to prepare sorbents for semidry and dry flue gas desulfurization (FGD) processes. The addition of NaOH greatly enhanced the sorbent reactivities toward SO₂ because NaOH is deliquescent and its presence increased the amount of water collected by the sorbent. In the case of sorbents prepared without NaOH addition, both the Ca utilization and the SO₂ capture increased with increasing slurrying temperature and varied with the BFS/HL weight ratio; however, in the case of sorbents prepared with NaOH addition, their Ca utilization in creased to a level that was nearly independent of the slurrying temperature and the BFS/HL weight ratio. NaOH addition can raise the level of sorbent reactivity and reduce the sorbent cost in a semidry or dry FGD process. |
本系統中英文摘要資訊取自各篇刊載內容。