论文部分内容阅读
通过对含烯烃汽油进行溴加成反应,对汽油中烯烃的保留值进行了研究。对171个溴化产物溴代烃进行了定性,并给出了溴代烃所对应的171个烯烃的定性结果,其中对C7前的溴代烃及烯烃组分给出了结构式。定性手段主要依据汽油中混合纯烯烃样品溴化后的气相色谱 质谱联用(GC MS)数据和气相色谱 原子发射光谱(GC AED)的元素比数据,确定溴代烃及其对应烯烃单体的分子式,然后利用已有的烯烃单体文献保留值数据、纯烯烃化合物的反应结果并结合碳数规律和沸点规律,确定了烯烃单体化合物的结构。该方法最大的优点是实现了选择性检测烯烃,从而排除了其他烃类化合物对烯烃测试的干扰,因此对于汽油中烯烃的分布有着更直观的反映。
The retentions of olefins in gasoline were studied by bromine addition reaction of olefins containing gasoline. 171 brominated products of brominated hydrocarbons were characterized and the qualitative results of 171 olefins corresponding to brominated hydrocarbons were given. The structural formulas of the brominated hydrocarbons and the olefin components before C7 were given. Qualitative methods are based on the elemental ratio data of GC-MS and GC-AED after bromination of mixed pure olefins in gasoline to determine the molar ratio of brominated hydrocarbons and their corresponding olefinic monomers Then, the structure of the alkene monomer compounds was determined by using the existing data of the retentive value of the alkene monomers, the reaction results of the pure alkene compounds, and the law of carbon number and boiling point. The biggest advantage of this method is the selective detection of olefins, thus eliminating the interference of other hydrocarbons on the test of olefins. Therefore, it has a more direct reflection on the distribution of olefins in gasoline.