• 沒有找到結果。

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附件一、研究成果照片及說明

圖 1-1 SOFC 的運作原理

圖 1-2 SOFC 的形式分管狀(左)與平板式(右)兩大類

圖 1-3 具 Ce0.8Gd0.2O1.9成分的SOFC 在 500℃時的性能曲線

圖1-4 Siemens Westinghouse 之 200 kW SOFC/Gas Turbine Hybrid System

20 30 40 50 60 70 80 LaNiO3 LaFeO3 LaCoO3 LaMnO3

Intensity

2- Theta (degree)

圖4-1. LaBO3(B = Mn﹐Ni﹐Fe﹐Co)觸媒之 X-ray 繞射圖

圖4-2. LaBO3(B = Mn﹐Ni﹐Fe﹐Co)觸媒之 TEM 圖

(a) LaMnO3

(b) LaCoO3

(c) LaFeO3

(d) LaNiO3 (a) LaMnO3

(b) LaCoO3

(c) LaFeO3

(d) LaNiO3

400 450 500 550 600 650

CH4 Conversion (%)

Temperature (oC)

圖4-3 以 LaBO3(B = Mn﹐Ni﹐Fe﹐Co)型式之波洛斯凱特型觸媒 進行甲烷燃燒反應之轉化率與反應溫度關係圖(觸媒重量

=0.25 g;WHSV = 9600 ml g-1 hr-1;甲烷濃度= 5000ppm)

400 450 500 550 600 650 0

CH4 Conversion (%)

Temperature (oC)

圖4-4 以 La0.7A0.3CoO3(A=Ag、Ce、Sr)型式之波洛斯凱特型觸媒 進行甲烷燃燒反應之轉化率與反應溫度關係圖(觸媒重量

=0.25 g;WHSV = 9600 ml g-1 hr-1;甲烷濃度= 5000 ppm)

400 450 500 550 600 650

CH4 Conversion (%)

Temperature (oC)

圖4-5 以 La0.7A0.3MnO3(A=Ag、Ce、Sr)型式之波洛斯凱特型觸媒 進行甲烷燃燒反應之轉化率與反應溫度關係圖(觸媒重量

=0.25 g;WHSV = 9600 ml g-1 hr-1;甲烷濃度= 5000 ppm)

400 450 500 550 600 650

0 CH4 Conversion (%)

Temperature (oC)

圖4-6 不同煅燒溫度對觸媒活性的影響(觸媒= La0.7Ag0.3MnO3; WHSV = 9600 ml g-1 hr-1;甲烷濃度= 5000 ppm)

圖4-7 不同煅燒溫度時 La0.7Ag0.3MnO3的SEM 圖

0 5 10 15 20 25

0 20 40 60 80 100

Temperature = 550 oC Temperature = 450 oC

CH

4

Conversion (% )

On-Stream Time (hr)

圖 4-8 La0.7 Ag 0.3MnO3波洛斯凱特型觸媒的穩定性測試(反應時間=

22 hr;WHSV = 9600 ml g-1 hr-1;甲烷濃度= 5000 ppm)

600℃ 800℃

700℃ 900℃

400 450 500 550 600 650

0

CH4 Conversion (%)

Temperature (oC)

圖4-9 不同重量小時空間流速(WHSV)對甲烷燃燒效率之影響(觸媒

= La0.7Ag0.3MnO3;甲烷濃度= 5000 ppm)

400 450 500 550 600

0 CH4 Conversion (%)

Temperature (oC)

圖4-10 不同甲烷濃度對燃燒效率之影響(觸媒= La0.7Ag0.3MnO3

10 20 30 40 50 60 70

Intensity

2 Theata

(440) (400)

(111)

(222)

(220)

(311)

圖4-11 以溶膠凝膠披覆法所製備之 γ-Al2O3之XRD 圖

圖 4-12 以溶膠凝膠披覆法製備 γ-氧化鋁(500℃煅燒)披覆於蜂巢狀 陶瓷之 SEM 照片

圖 4-13 高溫與低溫轉化反應器示意圖【93】

圖 4-14 氣化合成氣轉化後結合燃料電池之理論系統架構圖

高溫轉化反應 混合氣淨化 氣化合成氣

低溫型燃料電池 降低氣體溫度 低溫轉化反應 去除一氧化碳

高溫型燃料電池 SOFC 高溫轉化反應

混合氣淨化 氣化合成氣

低溫型燃料電池 降低氣體溫度 低溫轉化反應 去除一氧化碳

高溫型燃料電池

SOFC

圖4-15 薄膜反應器之運作原理示意圖【94】

圖4-16 初步設計之水氣轉化反應系統圖

0 10 20 30 40 50

I

2 Theta

Micropores Mesopores

MCM-41

ZSM-5

圖4-17 雙孔徑分子篩(DPMS)之 XRD 示意圖譜

圖4-18 雙孔徑分子篩(DPMS)之催化(CO shift)及富集 H2 之反應途 徑

圖4-19 整合 WGS/PSA/plasma 反應系統以提升 H2產量

2 4 6 8 10

2 Theta

圖 4-20 MCM-41 之 XRD 圖譜

圖4-21 MCM-41 之 TEM 圖譜

圖4-22 MCM-41 之 EDX 元素分析

NW40 KF NW16 KF

View Port Quartz

Copper Disk

½"

To Vacuum View Port

IR Transmission Window

5"

Electrode Shelter

Electrical Feedthrouhgs

Packing Column

MKS Gauge

Catalyst

1"

圖4-23 電漿腔體結構圖

圖4-24 電漿系統流程圖

圖4-25 不同管道 cavity 型駐焰器內管道格點

圖4-26 不同下游壁面之 open cavity 型態

Stream line

v contour

u vector

u vector

圖4-27 不同下游壁面之 cavity 壓力分布圖

圖4-28 下游傾斜壁面 cavity 之低速流體流場 L/D=8

L/D=4.5 L/D=3.5 L/D=2.5 L/D=1

圖4-29 下游傾斜壁面 cavity 之低速流體壓力

圖 4-30 90°下游壁面與具 45°傾斜下游壁面之 cavity 流場與 壓力變化

L/D=1

L/D=2.5

L/D=3.5

L/D=4.5

L/D=8

圖4-31 流體流經大小不同管道所產生內部渦流與壓力改變的 現象

圖 4-32 外流場式駐焰器測試裝置設計圖

u vector Pressure

contour

圖4-33 產氣(ψ=0.15)與丙烷(ψ=0.30)氣相反應溫度分布

圖4-34 產氣(ψ=0.15)與丙烷(ψ=0.35)氣相反應溫度分布

圖4-35 產氣(ψ=0.20)與丙烷(ψ=0.30)氣相反應溫度分布

圖 4-36 產氣(ψ=0.20)與丙烷(ψ=0.35)氣相反應溫度分布

圖 4-37 駐焰器火焰產生

圖 4-38 微小粒子添加器設計圖

旁通氣流

粒子流

奈米粒子

圖4-39 實驗流程圖

圖4-40 水汽添加基本性能測試,溫度關係圖(水壓 12kg/cm2)

圖4-41 水汽/甲烷莫耳數比對轉速變化曲線圖

圖4-42 水汽添加流量與轉速變化曲線圖

表4-1 觸媒經 X 射線繞射儀(XRD)測得之結晶構造

表4-3 各種材料用於水氣轉化反應器的反應速率【95】

表4-4 實驗參數

流速(m/s) 產氣當量比 丙烷當量比 0.15

6 0.20 0.30 ~ 0.35 0.15

7 0.20 0.30 ~ 0.35 0.15

8 0.20 0.30 ~ 0.35

表4-5 工研院能資所煤炭氣化爐產氣成分表 壓力

bar 氧煤比 CO

%

CO2

%

H2

%

CH4

% 碳轉化率 0.5 0.172 7.5 11.0 9.7 1.1 0.45 1.0 0.175 6.6 10.1 6.4 0.4 0.44 1.5 0.222 8.8 12.0 10.8 0.9 0.56 2.0 0.236 11.2 12.2 12.1 0.3 0.73 2.0* 0.3 10.5 17.8 18.0 0.14 0.80

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