바나듐 산화물 및 티타니아계 촉매에 의한 메탄과 부탄의 기상산화반응연구 = (A) Study on the gas phase oxidation of methane and butane by titania and vanadium oxide catalyst

다국어 초록 (Multilingual Abstract)

Methane and Butane catalytic oxidation was conducted with vanadium and titania based catalyst in the thermalcatalytic reactor and photocatalytic reactor.
Thermalcatalytic reactor was made by stainless steel tube and temperature controlled through the electrical furnace in the range of 350℃ to 570℃.
Low pressure lamp(39watt) and high pressure lamp(400watt) was installed in the photocatalytic reactor. Three kind of catalyst was prepared. First is crystalline glass having V_(2)O_(5)-P_(2)O(-5)-B_(2)O_(3)composition which was prepared through melting and annealing process. Second is V_(2)O_(5)/SiO_(2) impregnated catalyst haying 0.1% and 0.25% V_(2)O_(5) composition. The last is titania film made from chemical vapor deposition having 7000Å thickness from XRD analysis and the experimental data obtained in anatase type.
The reaction results was as follows, Methane reaction on V_(2)O_(5)-P_(2)O-(5)-B_(2)O_(3) catalyst was not obtained any product in the temperature range of 350℃ to 570℃ Butane reaction on V_(2)O_(5)-P_(2)O_(5)-B_(2)O_(3) gives form aldehyde, acetic acid, acrylic acid and maleic anhydride. As B_(2)O_(3) composition increased the selectivity of C_(l)-C_(3) product was increased. Methane of oxidation on V_(2)O_(5)/S_(1)O_(2) was peformed with NO gas as a partial oxidation promoter. The optimum methanol yield was 1.06% with 0.25% V_(2)O_(5)/S_(1)O_(2) catalyst and 15.8mol% NO.
Butane was converted Into CO2 under high pressure lamp and 0.6% yield of methanol was producted from methane with low pressure mercury lamp in the presence of titania film.

목차 (Table of Contents)

• 목차 = ⅰ
• ABSTRACT = ⅵ
• Ⅰ. 서론 = 1
• Ⅱ. 이론적 배경 = 4
• A. 메탄과 부탄의 화학적 특성 = 4
• B. 바나듐계 결정질 유리촉매 = 5
• C. 광촉매 산화 = 6
• D. 메탄의 산화반응 = 9
• Ⅲ. 실험재료 및 방법 = 11
• A. 광촉매 재료 = 11
• B. 촉매제조 = 11
• 1. 바나듐계 촉매 제조 = 11
• 2. V_(2)O_(5) / SiO_(2) 촉매 제조 = 14
• C. 분석기기 = 14
• D. 실험장치 = 15
• E. 실험방법 = 21
• 1. 메탄의 산화반응실험 = 21
• 2. 부탄의 산화반응실험 = 22
• Ⅳ. 결과 및 고찰 = 23
• A. 바나듐계 촉매의 산화반응 = 23
• 1. V_(2)O_(5)-P_(2)O_(5)-B_(2)O_(3) 삼성분계 촉매의 결정구조 및 특성 = 23
• 2. V_(2)O_(5)-P_(2)O_(5)-B_(2)O_(3) 촉매의 부탄 산화반응 = 27
• 3. V_(2)O_(5)-P_(2)O_(5)-B_(2)O_(3) 촉매의 메탄 산화반응 = 32
• 4. V_(2)O_(5)/SiO_(2) 촉매의 메탄 산화반응 = 32
• a. V_(2)O_(5)/SiO_(2)(0.1%V_(2)O_(5)) 촉매의 산화반응 = 32
• b. V_(2)O_(5)/SiO_(2)(0.25%V_(2)O_(5))촉매의 산화반응 = 36
• B. 티타니아계 촉매의 산화반응 = 39
• 1. 저압램프(low-pressure lamp)에 의한 메탄의 산화반응 = 39
• 2. 고압램프(high-pressure lamp)에 의한 메탄의 산화반응 = 42
• 3. 고압램프(high-pressure lamp)에 의한 부탄의 산화반응 = 45
• Ⅴ. 결론 = 48
• A. 부탄의 부분산화반응 = 48
• B. 메탄의 부분산화반응 = 48
• Ⅵ. 참고문헌 = 49