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題 名 | C5聚合抑制劑配方開發研究=A Study on Compositions of Polymerization Inhibitors for Cracking C5 Fractions |
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作 者 | 李聖德; 高瑞富; 林建琛; 黃銘郁; 王逸萍; | 書刊名 | 石油季刊 |
卷 期 | 50:3 2014.09[民103.09] |
頁 次 | 頁51-58 |
分類號 | 457.5 |
關鍵詞 | 異戊二烯; 聚合抑制劑; 裂解五碳餾分; Isoprene; Polymerization inhibitors; Cracking C5 fractions; |
語 文 | 中文(Chinese) |
中文摘要 | 裂解五碳餾分是石油腦高溫裂解過程產生的副產物且占乙烯產量10~20%。其中高價值且含量較多的組成為異戊二烯、間戊二烯和環戊二烯。由於雙烯烴的反應活性高,容易受到熱、光、過氧化物和機械雜質的影響,發生自聚或共聚。本研究選用工業上常用的聚合抑制劑-4-叔丁基鄰苯二酚(TBC)、二乙基羥胺(DEHA)和4-羥基-2,2,6,6,-四甲基哌啶氮氧自由基(TEMPO)等聚合抑制劑進行異戊二烯阻聚效果評估。另外,使用複合型聚合抑制劑-醇類、肟類、酚類和醌類與TEMPO混合,測試其對異戊二烯阻聚效果,並針對單一成份和複合型的聚合抑制劑成本進行分析。測試結果顯示複合型的聚合抑制劑具有協同作用對異戊二烯有良好的阻聚效果。在經濟考量方面,使用TEMPO與醇類當作聚合抑制劑較單一使用TEMPO組成之成本明顯降低且其阻聚能力差不多。 |
英文摘要 | Cracking C5 fractions, the by-products generated during the thermal cracking naphtha, were 10~20% of the ethylene production capacity. Among the cracking C5 fractions, the most high value and content of them were isoprene, piperlene and cyclopentadiene. Due to their high reactivity, di-olefins were easily influenced by heat, light, peroxides and mechanical impurities and resulted in self-polymerization or copolymerization. This study was conducted to evaluate the effects of inhibiting isoprene polymerization by using the polymerization inhibitors widely used in the industry, including p-tert-butyl-catechol (TBC), N, Ndiethylhydroxylamine (DEHA) and 4-hydroxy-2,2,6,6-tetramethyl-piperidinooxy (TEMPO). Besides, the composite polymerization inhibitors were investigated not only the effects of inhibiting isoprene polymerization but also the cost between the single and composite polymerization inhibitors using TEMPO with alcohols, oximes, phenols and quinones respectively. The results have revealed that there was a better synergistic effect on inhibiting isoprene polymerization of the composite polymerization inhibitors. Regarding economic efficiency, the cost of using alcohols and TEMPO as a polymerization inhibitor was relatively lower than that of TEMPO, but the performance of them on inhibiting isoprene polymerization was almost the same. |
本系統中英文摘要資訊取自各篇刊載內容。