Evaluation of Zeolite-L as Catalyst Carrier for Dehydroisomerization of n-butane to lsobutylene

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題名:	Evaluation of Zeolite-L as Catalyst Carrier for Dehydroisomerization of n-butane to lsobutylene
其他題名:	Zeolite-L 作為正丁烷脫氫異構化製異丁烯之觸煤擔體的可行性探討
作者:	蕭旭欽；汪慰萱；游文卿
貢獻者:	東海大學
日期:	1992-06-00
上傳時間:	2012-06-29
出版者:	台中市：東海大學
摘要:	正丁烷脫氫異構化製成異丁烯可與甲醇反應生成甲基第三丁基醚（MTBE），是為降低汽車排氣污染的好汽油摻和劑。本研究以 Zeolite-L 為觸媒擔體，探討其酸性強度與含浸鉑水溶液後所備製得脫氫異構化雙功能觸媒之反應溫度，轉化率與選擇率。實驗結果顯示，含浸鉑可提高反應轉化率與選擇率，鉑水溶液濃度可能需高於 0.15 ％（重量）。 Zeolite-L 本身酸性己很強，導致裂解與聚合反應，若再含浸硼酸其催化裂解與聚合反應更嚴重。而反應溫度必須高於 550 ℃以得足夠之轉化率，卻應低於 600 ℃以免過多裂解與聚合反應　　　　　Dehydroisomerization of n-butane produces isobutylene, which reacts with methanol to form methyl-tertiary-butyl-ether(MTBE). MTBE is an excellent blending additive for reformulated fuels. In this study Zeolite-L was used as catalyst carrier to study its acidity, and impregnated with platinum to make bi-functional catalyst for dehydroisomerization. Experimental data showed that platinum- impregnation improved conversion of n-butane and selectivity of isobutylene. Concentration of H2 Pt6 C12. 6H?畝queous solution for impragnation might be requird to be higher than 0.15 wt％. Zeolite-L had high acidity and led to cracking and polymerization. Further acidification led to even more cracking. Reaction temperature had to be higher than 550℃ to get reasonable amount of dehydrogena- tion, while should be lower than 600℃ to avoid too much crack- ing.
關聯:	東海學報第33卷
顯示於類別:	[校內出版品(學報)] 東海學報

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