Prins反应合成柴油调合组分的反应动力学  

Kinetics for diesel blending component synthesized by Prins reaction

作　　者：姜翠玉 夏洋峰 王芳珠 赵德志 刘长龙 商红岩 JIANG Cuiyu;XIA Yangfeng;WANG Fangzhu;ZHAO Dezhi;LIU Changlong;SHANG Hongyan(College of Science in China University of Petroleum(East China), Qingdao 266580, China;Tianjin Branch of China National Offshore Oil Corporation Limited, Tianjin 300459, China)

机构地区：[1]中国石油大学(华东)理学院,山东青岛266580 [2]中海石油(中国)有限公司天津分公司,天津300459

出　　处：《中国石油大学学报（自然科学版）》2019年第5期178-184,共7页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：科技部重大专项(2018YFB0604805)

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940kg/m3,体积热值为32.52MJ/m^3,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=135.03kJ/mol,指前因子Ao=3.29×10^15。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/m ^3, and the calorific value is 32.52 MJ/m 3.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 E a is 135.031 kJ/mol, and the pre-exponential factor A 0 is 3.29×10^ 15 .

关 键 词：Prins反应 1-己烯 多聚甲醛 动力学模型 柴油调合组分 

分 类 号：O626.4[理学—有机化学]