气相色谱法测定生物柴油中酯含量的方法研究

Study on Determination of Ester Content in Biodiesel by Gas Chromatography

当前环保型能源越来越被关注,生物柴油便是其中之一,能够作为普通柴油的代替燃料。与普通柴油不同,生物柴油是内部添加了酸性或碱性的催化剂,能够促动醇与酯元素产生反应。由C14~C24脂肪酸甲酯以及其他微量杂质组成。与普通柴油一样,生物柴油具备普通柴油的基本属性以及功能,而假设将生物柴油与石油调和则能够得到B-5、B-20等型号的混合(生物与石油)柴油。尽管生物柴油与其他油脂相比能够起到相对环保的作用,但其甘油酯的含量难以稳定,过多的甘油酯会间接侵蚀发动机,容易破坏载体自身的使用生命。这也是导致生物柴油限量生产的主要原因。

At present,environment-friendly energy is receiving more and more attention,and biodiesel is one of them,which can be used as an alternative fuel for ordinary diesel.Unlike ordinary diesel,acid or basic catalysts are added inside,which can promote the reaction of alcohol and ester elements.It is composed of C14-C24 fatty acid methyl ester and other trace impurities.Like ordinary diesel,biodiesel has the basic properties and functions of ordinary diesel,and it is assumed that blending biodiesel with petroleum can produce B-5,B-20 and other types of mixed(biological and petroleum)diesel.Although biodiesel can play a relatively environmental role compared with other oils and fats,compared with ordinary diesel,the content of glycerol ester in biodiesel is diffi cult to stabilize.Too much glycerol ester will indirectly attack the engine and easily damage the service life of the carrier itself.This is also the main reason for the limited production of biodiesel.