CAJ | 학술논문

合成一种 Br?nsted 酸性离子液体[BPY]HSO4，采用红外光谱和核磁共振对其进行表征。以[BPY]HSO4为催化剂，对 FCC 汽油进行烷基化脱硫，考察反应温度、反应时间和剂油质量比对脱硫效果的影响及脱硫前后 FCC 汽油性质的变化，并对[BPY]HSO4进行了再生。结果表明，在反应温度为65℃、反应时间为90 min 和剂油质量比为0．09的条件下，FCC 汽油的硫含量从580．0μg／g 降至6．4μg／g，脱硫率为98．90％，满足中国国Ⅴ车用汽油硫含量标准（＜10μg／g）；脱硫前后硫分布变化表明，在[BPY]HSO4的催化作用下，前170℃馏分油中硫化物大部分转移到后170℃重馏分中，重馏分中硫化物可采用加氢方法进行脱除；PONA 组成变化表明，烷基化脱硫过程对 FCC 汽油的烃类组成影响较小，且脱硫前后辛烷值变化不大；[BPY]HSO4经萃取再生后可循环使用。
합성일충 Br?nsted 산성리자액체[BPY]HSO4，채용홍외광보화핵자공진대기진행표정。이[BPY]HSO4위최화제，대 FCC 기유진행완기화탈류，고찰반응온도、반응시간화제유질량비대탈류효과적영향급탈류전후 FCC 기유성질적변화，병대[BPY]HSO4진행료재생。결과표명，재반응온도위65℃、반응시간위90 min 화제유질량비위0．09적조건하，FCC 기유적류함량종580．0μg／g 강지6．4μg／g，탈류솔위98．90％，만족중국국Ⅴ차용기유류함량표준（＜10μg／g）；탈류전후류분포변화표명，재[BPY]HSO4적최화작용하，전170℃류분유중류화물대부분전이도후170℃중류분중，중류분중류화물가채용가경방법진행탈제；PONA 조성변화표명，완기화탈류과정대 FCC 기유적경류조성영향교소，차탈류전후신완치변화불대；[BPY]HSO4경췌취재생후가순배사용。
Br?nsted acidic ionic liquid [BPY]HSO4 was synthesized and characterizedb y FT-IR and 1 H-NMR. [BPY]HSO4 was then used as a catalyst in alkylation desulfurization of FCC gasoline; the effects of the reaction temperature, time and mass ratio of ionic liquid to oil on the desulfurization efficiency and FCC gasoline quality w ere investiga ted.The results showed that after reacti on fo r 90 min under 65 ℃ and an ion ic liquid to oil mas ratio of 0.09, the sulfu r content of FCC gasoline is decreased from 580.0 to 6.4 μg/g, with a desulf urization rate of 98.90%, whi ch can meet the request of Chinese NationalS tandard V for the sulfur content in motor gasoline (<10 μg /g).A sur vey on th e distributio n ofs ulfur compounds indicated that sulfur compounds are transferred from light fraction (<170 ℃) to heavy fraction (>170 ℃) with the help of [BPY]HSO4 and the sulfur compounds in heavy fraction can then be removed further by hydrodesulfurization.PONA results indicated that the alkylation desulfurization catalyzed by [BPY] HSO4 has little effect on hydrocarbon composition and octane number of FCC gasoline.Moreover, the [BPY]HSO4 ionic liquid can be recycled through extraction and reused in the alkylation desulfurization.