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研究生:陳昭榮
研究生(外文):Chen, Jhao-Rong
論文名稱:鈣循環與化學迴路的反應器系統之建模、分析及其應用
論文名稱(外文):Modelling and Analysis of Calcium and Chemical Looping Reactor Systems and Their Application.
指導教授:吳煒吳煒引用關係
指導教授(外文):Wu, Wei
口試委員:汪上曉黃鎮江張玨庭沈政憲
口試日期:2017-07-13
學位類別:碩士
校院名稱:國立成功大學
系所名稱:化學工程學系
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:2017
畢業學年度:105
語文別:中文
論文頁數:123
中文關鍵詞:鈣循環化學迴路產氫二氧化碳捕獲MatlabAspen Plus®
外文關鍵詞:Calcium LoopingChemical LoopingWabash River Coal Gasification ProjectMatlabAspen Plus®
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本研究之目的是將二氧化碳在化工廠內捕獲並高壓液化封存,並產生乾淨的氫氣與電力提供給大眾社會使用,以減少二氧化碳排放,因此使用鈣循環與化學迴路系統做為本研究捕碳產氫的製程。
本研究以快速流體化床與逆流式移動床為基礎,透過Matlab建立鈣循環與化學迴路反應器之數學模型,並分析最適化其模擬結果。且以J. C. Abanades以及L. S. Fan的文獻加以驗證。
模擬結果顯示,鈣循環透過氧化鈣在快速流體化床內循環操作,能捕獲工廠尾氣超過70%的二氧化碳,也能在合成氣的進料中生產將近兩倍的氫氣;而化學迴路能以載氧體氧化還原的方式捕獲二氧化碳並生產純度接近100%的氫氣。
本研究亦結合Matlab的模型與Aspen plus®的流程模擬,模擬鈣循環與化學迴路個別應用在沃巴什河煤氣化電廠內的狀況。其結果顯示此二種製程皆能捕獲二氧化碳,並生產氫氣。而化學迴路在電廠內能有較高的熱效率或氫氣品質;鈣循環有較高的操作彈性與負荷,就能使用在高產量的工廠內。各工廠能參考本研究之模擬結果,根據實際的操作狀況,選擇適合的系統應用在工廠內。
In order to lower down the CO2 emission without reducing the energy suppling, CO2 Capture and Storage in the plant, clean energy production such as Hydrogen and electricity are the main focus and principle of this study. As a result, Calcium and Chemical Looping systems are introduced in this study.

This study is based on the Fast Fluidized Bed and Countercurrent Moving Bed mathematical models built by Matlab. The simulation, analysis and optimization of Calcium and Chemical Looping are also being discussed. These models are also validated by J. C. Abanades and L. S. Fan’s previous work.

The results show that Calcium Looping could circulate CaO particles in two fast fluidized bed to capture more than 70% CO2 from tail gas and generate almost twice Hydrogen from Syngas inlet; Chemical Looping could use Oxygen carrier to fully oxide the Syngas and reduce H2O to produce almost 100% pure Hydrogen.

This study also used Aspen Plus® to simulate the application of these two systems in coal gasification power plant. The results show that Chemical Looping has higher purity Hydrogen production and heat efficiency, and Calcium Looping has more operating tolerance and capacity, which is suitable to be installed in large production plant. People could consider the operating condition and take this as reference to choose the most suitable system for their plants.
致謝 I
摘要 V
ABSTRACT VI
SUMMARY VI
INTRODUCTION VII
MODEL BUILDING VIII
RESULTS AND DISCUSSION IX
CONCLUSION XII
目錄 XIII
圖目錄 XVIII
表目錄 XXIII
第一章 緒論 1
1.1前言 1
1.2研究動機與目標 2
第二章 鈣循環技術 3
2.1 前言 3
2.2 鈣循環介紹 4
2.3 流體化床 6
2.3.1流體化床物理特性 6
2.3.2 快速流體化床物理特性 9
2.3.3 流體化床化學反應 14
2.3.4 快速流體化床化學反應 16
2.4 碳酸化反應 20
2.5 流體化床模擬驗證 23
2.6 固體填充重量對快速流體化床之影響 24
2.7 碳酸化爐最適化 26
2.7.1 溫度與固體填充重量對快速流體化床之影響 26
2.7.2 碳酸化爐最適化操作點 28
2.8 鈣循環之水煤氣轉移反應及產氫 30
2.8.1 水煤氣轉移反應與動力式回歸介紹 30
2.8.2 碳酸化爐中水煤氣轉移反應 35
2.9 第二章總結 37
第三章 化學迴路 38
3.1 前言 38
3.2 化學迴路介紹 40
3.3 移動床反應器 44
3.4 化學迴路的熱力學 47
3.4.1 Fe2O3還原反應 47
3.4.2 Fe及FeO的氧化反應 50
3.5 還原器 52
3.5.1 還原器介紹 52
3.5.2 還原器分析 54
3.5.3還原器最適化 58
3.6 氧化器 60
3.6.1 氧化器設計 60
3.6.2 氧化器分析 62
3.6.3 氧化器最適化 64
3.7 化學迴路分析 66
3.8 第三章總結 68
第四章 煤氣化電廠之應用 69
4.1 前言 69
4.2整體煤氣化聯合循環 70
4.3 氣渦輪機發電 72
4.4 蒸氣渦輪組發電 74
4.5 Heat Recovery Steam Generator 79
4.6 空氣分離式化學迴路 82
4.7 沃巴什河煤氣化計畫介紹 87
4.8 整廠設計 90
4.8.1 整廠設計方案介紹 90
4.8.2 設計方案一 91
4.8.3設計方案二 93
4.8.4 設計方案三 95
4.8.5 設計方案四 97
4.8.6 設計方案五 99
4.9 整廠設計方案比較 101
4.10 第四章總結 106
第五章 結論 107
參考文獻 108
附錄(A) 碳酸爐設計方程式 112
A-1 符號說明 112
A-2 設計方程式 116
附錄(B) 移動床設計方程式 119
B-1 符號說明 119
B-2 設計方程式 122
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