四种含氧化合物燃烧热的测定  

Determination on combustion energies of four oxygenated chemicals

作　　者：董金龙[1] 李好样[1] 杨春梅[1] 任跃红[1] 薛华[1] 

机构地区：[1]太原师范学院化学系,山西太原030031

出　　处：《实验室科学》2014年第6期4-6,共3页Laboratory Science

基　　金：2011年度山西省高校科技开发项目(项目编号:20111122);2013年山西省科技厅软科学项目(项目编号:2013041020)

摘　　要：通过对固体可燃物质燃烧热测定方法的改进,测定挥发性液体的燃烧热。实验采用氧弹量热计,将化合物注入胶囊中测其燃烧热,并保证化合物在实验过程中不溢出,不挥发,又要易于点燃。以柴油为参照测定含氧化合物(正丁醚、二甘醇二甲醚、二乙二醇丁醚和乙二醇丁醚)的燃烧热。实验测得,柴油的燃烧热Q柴油=-42.452 k J/g,四种含氧燃料中燃烧热值最高的是乙二醇丁醚和正丁醚:Q乙二醇丁醚=-43.143 k J/g,Q正丁醚=-42.111 k J/g。In order to determinate the combustion energies of oxygenated chemicals, we improve the method for determining the combustion energies of the combustible solid in this topic. In the experi- ment, we pour the volatile liquid into the capsule to measure its combustion energies, using the oxygen bomb calorimeter instrument. During the whole experiment, we must guarantee liquid non-spillable, non-volatile, but also easy to light. So this topic select diesel oil and oxygenated fuels （ butyl ether, diethylene glycol dimethyl ether, diethylene glycol monobutyl ether and butyl glycolether ） for the volatile liquid. We measured the combustion energies of diesel oil is -42. 452 kJ/g. Butyl glycolether and butyl ether are the highest in the four oxygenated fuels： Q butyl glycolether = -43. 143 kJ/g , Q butyl ether =- 42. 111 kJ/g.

关 键 词：氧弹量热计 燃烧热 含氧化合物 测定 

分 类 号：O642.3[理学—物理化学]