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复合离子液体催化碳四烷基化反应性的研究 被引量:32

Study on isobutane alkylation catalyzed by composite ionic liquid
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摘要 合成了一种新型的酸性离子液体催化剂———复合离子液体,该离子液体的阴离子具有双金属的配位中心。同时,研究了复合离子液体催化异丁烷与丁烯烷基化反应的规律。结果表明,在搅拌速率大于1 500 r/m in,反应低于20℃,烃酸比2∶1~3∶1,烷烯比大于15,反应停留5 m in^10 m in,使用丁烯-2为碳四烯烃反应原料下,复合离子液体催化碳四烷基化所得烷基化油的研究法辛烷值(RON)最高可达100以上,明显优于常规氯铝酸离子液体催化所得烷基化油的质量。 A novel ionic liquid (IL), composite IL, which contained enough quantity of multi-center ligand, AlCl4 CuCl^ -, was successfully synthesized. The effects of reaction temperature, reaction time, stirring speed and isoparaffin/olefine (I/O) ratio on the composite-IL-catalyzed alkylation were studied. The results showed that the research octane number (RON) of the yielded alkylate gasoline can be higher than 100 under the optimal conditions: stirring speed 〉 1 500 r/min, reaction temperature 〈 20℃, I/O ratio 〉 15 and reaction time in range of 5 min to 10 min. The multi-center ligand, AlCl4CuCl^- , should be accounted for the super selectivity of trimethylpentane (TMP) of isobutane alkylation catalyzed by composite IL.
出处 《燃料化学学报》 EI CAS CSCD 北大核心 2006年第3期328-331,共4页 Journal of Fuel Chemistry and Technology
基金 国家自然科学基金(20490209) 国家自然科学青年基金(20206018)
关键词 离子液体 烷基化 碳四 三甲基戊烷 ionic liquid alkylation isobutane trimethylpentane(TMP)
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参考文献6

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