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研究生:趙正玉
研究生(外文):Cheng Yu Chao
論文名稱:以過氧化氫溶液於逆流式旋轉填充床中去除臭氧之研究
論文名稱(外文):Removal of Ozone by H2O2 Absorption in a Countercurrent-flow Rotating Packed Bed
指導教授:林佳璋http://thesis.lib.cgu
指導教授(外文):C. C. Lin
學位類別:碩士
校院名稱:長庚大學
系所名稱:化工與材料工程研究所
學門:工程學門
學類:化學工程學類
論文種類:學術論文
論文出版年:2008
畢業學年度:96
論文頁數:149
中文關鍵詞:臭氧旋轉填充床吸收去除率
外文關鍵詞:ozonerotating packed bedremoval efficiencyabsorption
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臭氧是一種強氧化劑,目前廣泛應用於飲用水及廢水廠的處理,以及紙漿與紡織工業的漂白消毒,由於其本身具有毒性,在8小時工作環境下允許的最大濃度應低於0.10 ppm,濃度到達 0.30 ppm時,不得超過15分鐘,因此處理污染源所產生及排放的臭氧,改善作業環境空氣品質,成為目前重要的課題之一。
為了保持高臭氧去除率及其穩定性,本研究採用逆流式旋轉填充床吸收空氣中臭氧,利用過氧化氫溶液來提升臭氧的質傳速率,探討臭氧去除效率與操作參數(轉速、過氧化氫溶液流量、過氧化氫溶液濃度、過氧化氫溶液pH 值、氣體流量、臭氧初濃度、靜止外殼半徑、床內外半徑)之關係。
實驗結果顯示,過氧化氫溶液濃度於吸收過程中維持不變,因此,過氧化氫溶液在實驗中可能扮演催化劑的角色。且臭氧去除效率隨著轉速、液體流量、過氧化氫溶液濃度與pH值增加而變大,隨著氣體流量增加而減少。除此之外,臭氧去除效率隨著填充床內半徑與靜止外殼半徑增加而變大,隨著床外半徑增加而減少。以過氧化氫溶液於逆流式旋轉填充床中吸收臭氧,提供超過95%以上的去除率,未來對於廢氣中臭氧的防治有很大的潛能。
Ozone is used as a strong oxidant and thus widely applied in the waste and drink water treatment, sterilization and the bleaching of cloth and wood pulp. However, owing to the fact that ozone itself is toxic and the maximum concentration allowable exposure to ozone is 0.10 ppm for 8 h period and 0.30 ppm for 15 minute period, its release into the environment must be avoided. As a result, it is very essential to remove the residual ozone from air induced from these processes before discharging it to outside environment.
To maintain the stable and higher ozone removal efficiency, this study adopted a countercurrent-flow rotating packed bed (RPB) to absorb ozone from air with an aqueous H2O2 solution for enhancing the ozone transfer rate. This study also investigated the effect of the operating parameters (rotor speed, flow rate of H2O2 solution, H2O2 concentration, pH of H2O2 solution, gas flow rare, ozone concentration, stationary housing radius, inner and outer radius of bed) on ozone removal.
Experimental results indicated that H2O2 concentration could maintain an initial value during the absorption process. Based on this result, it may be concluded that H2O2 acted as a catalyst in the absorption process. In addition, the ozone removal efficiency appeared to increase with the rotor speed, flow rate of H2O2 solution, H2O2 concentration and pH of H2O2 solution but decrease with an increasing gas flow rate.
Moreover, the obtained results indicated that the ozone removal efficiency increased as the inner radius of the bed and stationary housing radius increased and the outer radius of the bed decreased. Furthermore, a countercurrent-flow RPB provides more than 95% removal efficiency for ozone absorption using H2O2 solution, suggesting that a countercurrent-flow RPB has a great potential in the removal of ozone from the exhausted gases.
目 錄
指導教授推薦書
口試委員會審定書
授權書
誌謝 IV
中文摘要 VI
英文摘要 VII
目錄 IX
圖目錄 XII
表目錄 XV
第一章 緒論 1
1-1 前言 1
1-2 研究目的 2
第二章 文獻回顧 4
2-1 臭氧 4
2-1-1 臭氧的基本性質 4
2-1-2 臭氧的排放源 9
2-1-3 臭氧的自解行為 10
2-2 旋轉填充床之簡介 12
2-2-1 旋轉填充床的起源與原理 12
2-2-2 旋轉填充床之應用 17
2-3 控制臭氧方法 .21
2-3-1 活性碳吸附法 21
2-3-2 觸媒分解法 22
2-3-3 超重力吸收法 23
第三章 實驗裝置與方法 31
3-1 實驗裝置 31
3-2 實驗藥品及分析儀器 35
3-3 實驗方法與流程 38
3-3-1 臭氧分析儀校正 38
3-3-2 過氧化氫溶液濃度分析 41
3-3-3 過氧化氫溶液吸收臭氧程序 42
第四章 結果與討論 45
4-1 吸收劑特性分析 45
4-1-1 吸收劑種類對臭氧去除率之影響 47
4-1-2 吸收劑pH值對吸收臭氧之影響 51
4-1-3 過氧化氫溶液吸收臭氧穩定性分析 55
4-1-4 臭氧初濃度對去除率的影響 59
4-1-5 過氧化氫溶液濃度對吸收臭氧之影響 63
4.2 過氧化氫溶液吸收臭氧程序分析 67
4-2-1 轉速之影響 67
4-2-2 氣體流量之影響 71
4-2-3 液體流量之影響 74
4-2-4 RPB內、外半徑對吸收臭氧之影響 78
4-2-5 RPB靜止外殼半徑對吸收臭氧之影響 85
第五章 結論與建議 94
5-1 結論 94
5-2 建議 97
參考文獻 98
符號說明 108
附錄A 氣體及液體流量計校正曲線 110
附錄B 臭氧分析儀校正曲線 112
附錄C 吸收劑特性分析實驗數據 114
附錄D 過氧化氫溶液吸收臭氧程序實驗數據 123




















圖 目 錄
圖2.2.1 逆流式旋轉填充床示意圖[19] 15
圖2.2.2 錯流式旋轉填充床示意圖[20] 15
圖2.2.3 旋轉填充床簡圖 16
圖2.2.4 以亞鐵離子溶液為吸收劑,不同濃度下轉速對去除率的影響(a)QG=8 (L/min),QL=0.3 (L/min) (b)QG=8 (L/min),QL=0.9 (L/min)(c)QG=3 (L/min),QL=0.3 (L/min)(d)QG=3 (L/min),QL=0.9 (L/min) [7] 26
圖3.1 逆流式旋轉填充床構造與填充物實圖 33
圖3.2 逆流式旋轉填充床實圖 33
圖3.3 臭氧分析儀實圖 37
圖3.4 以過氧化氫溶液吸收臭氧實驗流程圖 44
圖4.1.1 不同吸收劑與pH值下,轉速對去除效率的影響 49
圖4.1.2 過氧化氫溶液pH值對臭氧去除效率的影響(a)QG=3 (L/min),QL=0.3 (L/min),(b)QG=3 (L/min),QL=0.9 (L/min) (c)QG=8,QL=0.3 (L/min) (d)QG=8 (L/min),QL=0.9 (L/min) 53
圖4.1.3 過氧化氫溶液與其回收液,轉速對去除效率的影響 57
圖4.1.4 時間對臭氧去除率的影響 57
圖4.1.5 時間對過氧化氫溶液濃度的影響 58
圖4.1.6 時間對過氧化氫溶液pH值的影響 58
圖4.1.7 臭氧初濃度去除效率的影響(a)QG=3 (L/min),QL=0.3 (L/min),(b)QG=3 (L/min),QL=0.9 (L/min) (c)QG=8 (L/min),QL=0.3 (L/min) (d)QG=8 (L/min),QL=0.9 (L/min) 61
圖4.1.8 過氧化氫溶液濃度對臭氧去除效率的影響(a)QG=3 (L/min),QL=0.3 (L/min) (b)QG=3 (L/min),QL=0.9 (L/min) (c)QG=8 (L/min),QL=0.3 (L/min) (d)QG=8 (L/min),QL=0.9 (L/min) 65
圖4.2.1 轉速對臭氧去除效率的影響(a)QG=3 (L/min) (b)QG=8 (L/min) 72
圖4.2.2 轉速對臭氧去除效率的影響(a)QL=0.3 (L/min) (b) QL=0.9 (L/min) 69
圖4.2.3 不同轉速下,氣體流量對臭氧去除效率的影響 (a)QL=0.3 (L/min)(b)QL=0.5(L/min)(c)QL=0.7(L/min)(d)QL=0.9 (L/min) 72
圖4.2.4 不同轉速下,液體流量對臭氧去除效率的影響(a)QG=3 (L/min) (b)QG=5 (L/min) (c)QG=6.5 (L/min) (d)QG=8 (L/min) 76
圖4.2.5 不同RPB規格下,轉速對臭氧去除效率的影響(a)QG=3 (L/min),QL=0.3 (L/min) (b)QG=3 (L/min),QL=0.9 (L/min) (c)QG=8 (L/min),QL=0.3 (L/min) (d)QG=8 (L/min),QL=0.9 (L/min) 81
圖4.2.6 不同RPB規格下,氣體流量對臭氧去除效率的影響(a)QL=0.3 (L/min),ω=300 rpm(b)QL=0.3 (L/min),ω=1800 rpm(c)QL=0.9 (L/min),ω=300 rpm (d)QL=0.9 (L/min),ω=1800 rpm 82
圖4.2.7 不同RPB規格下,液體流量對臭氧去除效率的影響(a)QG=3 (L/min),ω=300 rpm(b)QG=3 (L/min),ω=1800 rpm(c) QG=8 (L/min),ω=300 rpm (d) QG=8 (L/min),ω=1800 rpm 83
圖4.2.8 不同RPB規格在QG=3(L/min)下,靜止外殼半徑對臭氧去除效率的影響(a)QL=0.3 (L/min),ω=300 rpm(b)QL=0.3 (L/min),ω=1800 rpm (c)QL=0.9(L/min),ω=300 rpm(d)QL=0.9 (L/min),ω=1800 rpm 88
圖4.2.9 不同RPB規格在QG=8 (L/min)下,靜止外殼半徑對臭氧去除效率的影響(a)QL=0.3 (L/min),ω=300 rpm(b)QL=0.3 (L/min),ω=1800 rpm(c)QL=0.9 (L/min),ω=300 rpm(d) QL=0.9 (L/min),ω=1800 rpm 89
圖 4.2.10 臭氧去除率E (%)實驗值與式(4-1)計算值比較 90
圖 4.2.11 臭氧去除率E (%)實驗值與式(4-2)計算值比較 91
圖A.1 氣體流量計之校正曲線 111
圖A.2 液體流量計之校正曲線 112
圖B.1 臭氧分析儀之校正曲線 113














表 目 錄
表2.2.1 臭氧的物理化學性質[10] 7
表2.2.2 臭氧濃度與對人體影響之關係[11] 8
表2.3.1 乾式法與新穎臭氧吸收法的比較 27
表2.3.2 控制臭氧相關文獻整理表 28
表3.1 逆流式旋轉填充床規格與操作範圍 34
表3.2 臭氧分析儀校正數據 40
表4.1.1 固定液量、氣量下,不同吸收劑與轉速之臭氧去除率表
50
表4.1.2 不同操作條件下x值比較(Rs=11.5cm) 54
表4.1.3 不同操作條件下y值比較(Rs=11.5cm) 62
表4.1.4 不同操作條件下z值比較(Rs=11.5cm) 66
表4.2.1 不同操作條件下h值比較(Rs=11.5cm) 70
表4.2.2 不同操作條件下i值比較(Rs=11.5cm) 73
表4.2.3 不同操作條件下j值比較(Rs=11.5cm) 77
表4.2.4 RPB-1、RPB-2、RPB-3的h值比較(Rs=11.5cm) 84
表4.2.5 RPB-1、RPB-2、RPB-3的i值比較(Rs=11.5cm) 84
表4.2.6 RPB-1、RPB-2、RPB-3的j值比較(Rs=11.5cm) 84
表4.2.7 RPB-1、RPB-2、RPB-3的k值比較 92
表4.2.8 RPB-3在Rs=11.5 cm下臭氧去除率達95%的操作條件 93
表C-1.1 不同種類吸收劑吸收O3=520±20 ppmv實驗數據(RPB-2) 114
表C-1.2 不同過氧化氫溶液pH值吸收O3=520±20 ppmv實驗數據(RPB-2) 116
表C-1.3 不同過氧化氫溶液濃度吸收O3=520±20 ppmv實驗數據(RPB-2) 118
表C-1.4 不同臭氧初濃度吸收程序實驗數據(RPB-2) 120
表C-1.5 H2O2=0.03 mol/L吸收O3=520±20 ppmv穩定性測試實驗數據(RPB-2) 122
表D-1.1 H2O2=0.03 mol/L吸收O3=520±20 ppmv實驗數據(RPB-1) 123
表D-1.2 H2O2=0.03 mol/L吸收O3=520±20 ppmv實驗數據(RPB-2) 127
表D-1.3 H2O2=0.03 mol/L吸收O3=520±20 ppmv實驗數據(RPB-3) 130
表D-1.4 不同靜止外殼H2O2=0.03 mol/L吸收O3=520±20 ppmv實驗數據(RPB-1) 133
表D-1.5 不同靜止外殼H2O2=0.03 mol/L吸收O3=520±20 ppmv實驗數據(RPB-2) 134
表D-1.6 不同靜止外殼H2O2=0.03 mol/L吸收O3=520±20 ppmv實驗數據(RPB-3) 135
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