| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
| 利用Prins缩合反应降FCC汽油中烯烃研究 |
|
赵德志1,2,3,安高军2,鲁长波2,熊春华2,商红岩3
|
|
(1.天津大学机械工程学院,天津 300072;2.中国人民解放军62025部队,北京 102300;3.中国石油大学(华东)理学院,山东青岛 266580)
|
|
| 摘要: |
| 通过1-己烯和三聚甲醛模拟体系考察Prins缩合反应降烯烃的性能,比较大孔阳离子交换树脂Amberlyst-35、DFHS-6、分子筛H-Y和负载型离子液体BsMIMHSO4/sg的催化活性,选择Amberlyst-35为该反应的催化剂,研究甲醛来源、催化剂用量、1-己烯/三聚甲醛物质的量配比、反应温度、反应压力以及反应时间对反应的影响。结果表明:最佳工艺条件为催化剂用量为原料的4％,1-己烯/三聚甲醛物质的量配比为1∶1.5,反应温度105 ℃,反应压力1.5 MPa,反应时间4 h;在最佳工艺条件下,用质量比为1∶7的三聚甲醛与FCC汽油反应,可使FCC汽油中烯烃质量分数从25.1％降至12.2％,且反应后产品的辛烷值略有下降。 |
| 关键词: Prins反应 含氧化合物 降烯烃 汽油 |
| DOI：10.3969/j.issn.1673-5005.2020.02.020 |
| 分类号: |
| 文献标识码:A |
| 基金项目:山东省自然科学基金青年基金项目(ZR2019QB024) |
|
| Research of olefin reduction by Prins condensation for FCC gasoline |
|
ZHAO Dezhi1,2,3, AN Gaojun2, LU Changbo2, XIONG Chunhua2, SHANG Hongyan3
|
|
(1.School of Mechanical Engineering in Tianjin University, Tianjin 300072, China;2.Chinese People 's Liberation Army 62025 Unit, Beijing 102300, China;3.College of Science in China University of Petroleum (East China), Qingdao 266580, China)
|
| Abstract: |
| The performance of olefin reduction by Prins condensation was investigated using 1-hexene and triformol as the model system. The catalytic activity of macropore cation exchange resins Amberlyst-35, DFHS-6, zeolite H-Y, and supported ionic liquid BsMIMHSO4/sg were compared, through which the Amberlyst-35 was selected. And the influences of formaldehyde origin, catalyst amount, 1-hexene triformol molar ratio, reaction temperature, reaction pressure and reaction time on the reaction were investigated. The results show that the optimal conditions are as follows:w(catalyst)∶w(raw material)=4％, n(1-hexene)∶n(triformol)=1∶1.5, the reaction temperature of 105 ℃, the reaction pressure of 1.5 MPa, the reaction time of 4 h. Under these conditions, the olefin mass fraction in gasoline is reduced from 25.1％ to 12.2％ (by mass) with triformol FCC Gasoline mass ratio of 1∶7, and the gasoline octane number is declined to a small extent. |
| Key words: Prins reaction oxygenated compounds olefin reduction gasoline |
