| 摘要: |
| 通过实验考察1-己烯和甲醛的Prins反应产物的性质,对该反应动力学进行研究。结果表明:1-己烯和甲醛的Prins反应产物有2-丙基呋喃、3-庚烯-1-醇、2-庚烯-1-醇、4-丁基-1,3-二氧六环、3-甲氧基-2-庚烯-1-醇及6-丁基-1,3,5-三氧八环等6种产物,混合产物密度为940 kg/m3,体积热值为32.52 MJ/m3,氧质量分数为23.54％,凝点为-60 ℃,冷滤点-40 ℃,与-35号车用柴油调合后,其理化指标要明显优于-35＃车用柴油,满足高原地区对柴油性能的要求;1-己烯和甲醛的Prins反应的动力学模型中,反应级数为3.59,反应活化能Ea=135.03 kJ/mol,指前因子Ao=3.29×1015。 |
| 关键词: Prins反应 1-己烯 多聚甲醛 动力学模型 柴油调合组分 |
| DOI：10.3969/j.issn.1673-5005.2019.05.020 |
| 分类号: |
| 文献标识码:A |
| 基金项目:科技部重大专项(2018YFB0604805) |
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| Kinetics for diesel blending component synthesized by Prins reaction |
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JIANG Cuiyu1, XIA Yangfeng1, WANG Fangzhu1, ZHAO Dezhi1, LIU Changlong2, SHANG Hongyan1
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(1.College of Science in China University of Petroleum(East China), Qingdao 266580, China;2.Tianjin Branch of China National Offshore Oil Corporation Limited, Tianjin 300459, China)
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| Abstract: |
| The products synthesized by 1-hexene and formaldehyde reaction was studied. And the reaction kinetics was investigated as well. It is found that the products are composed by six different materials:2-propyltetrahydrofuran, (E)-hept-3-en-ol, (E)-hept-2-en-ol, 4-butyl-1,3-dioxane, (Z)-3-methoxyhept-2-en-ol, and 6-butyl-1,3,5-trioxocane. The density of the mixed productsis 960 kg/m3, and the calorific value is 32.52 MJ/m3.The oxygen content is 23.54％, and the low-temperature performance such as the freezing point and cold filter point are -60 ℃ and -40 ℃ respectively. When mixed with-35＃ automotive diesel, its physical and chemical indicators are better than those of the origin one, which could satisfy the demand of plateau area. In kinetic model of Prins reaction of 1-hexene and formaldehyde, the reaction series is 3.59, the reaction activation energy Ea is 135.031 kJ/mol, and the pre-exponential factor A0 is 3.29×1015. |
| Key words: Prins reaction 1-hexene paraformaldehyde kinetics model diesel blending component |
