摘要
本文為探討Pd/Al2O3觸媒，進行丁二烯／丁烯混合物之氫化反應，以瞭解操作變數對於丁二烯轉化率及各產物選擇率之影響，包括（一）氫氣／烯烴之比例；（二）反應空間流速效應；（三）反應溫度，關於丁二烯氫化之主要反應途徑，一併加以說明。本研究模擬商業化工場之操作範圍，且以工場提供之物流作為進料，並以連續式絕熱固定床反應器進行氫化反應測試，由反應測試之數據顯示，欲進行丁二烯／丁烯混合物之選擇性氫化反應，較佳之氫氣／丁二烯之比例為1.2 ~ 1.4；反應空間流速之提高利於單烯烴產物選擇率之提昇；於適當之氫氣／丁二烯比例下，反應溫度之提高俾益於丁二烯轉化率及單烯烴之產率。丁二烯氫化之反應途徑，其初中間產物分別為1-丁烯及順-2-丁烯，反-2-丁烯為１-丁烯之異構化產物，丁烷則為終產物。
並列摘要
This study investigates the influence of operating conditions on the performance of Pd/Al2O3 catalyst in the selective hydrogenation of butadiene/butene mixtures. The major operating variables include H2/butadiene ratio, space velocity and reaction temperature, which conditions are similar to those of industrial plant. In this article, the experiments were conducted in the continuous adiabatic fixed-bed reactor, wherein the feedstock being supplied from naphtha cracking unit. It was found that the yield of mono-olefins increases as H2/butadiene ratio being 1.2 ~1.4 and higher value of space velocity. While the higher reaction temperature favors the butadiene conversion and the yield of mono-olefins. Furthermore, the reaction-path of butadiene hydrogenation is discussed. It was supposed that the first intermediate is 1-butene and cis-2-butene respectively, and the trans-2-butene being the product of 1-butene isomerization. The butane is the final product.
延伸閱讀
- 蕭詠泰（2016）。以陰離子聚合法合成等嵌段苯乙烯-丁二烯SBSBS共聚物及其氫化前後性質研究〔碩士論文，國立中正大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0033-2110201614060111
- 陳文星、洪正宗、沈宏俊（2000）。丁烯液相氫化反應之研究。石油季刊，36(2)，1-10。https://doi.org/10.30128/JP.200006.0001
- Chou, T. S., & You, M. L. (1986). 具取代基之丁二烯碸及其異構物之製備. 中央研究院化學研究所集刊, (33), 13-17. https://doi.org/10.6522/BICAS.1986.33.2
- But, Y. S. (2009). Organocatalytic alcohol oxidation and Mitsunobu reactions [doctoral dissertation, The University of Hong Kong]. Airiti Library. https://www.airitilibrary.com/Article/Detail?DocID=U0029-1812201200016735
- 蘇茀第、陳萬秋（1967）。Catalytic Hydrogenation of Citronellal。化學，(56年1)，19-26。https://doi.org/10.6623/chem.1967004