煤直接液化生产的喷气燃料净热值测定方法研究  

RESEARCH ON DETERMINATION METHOD OF NET HEAT OF COMBUSTION OF JET FUEL PRODUCED FROM COAL DIRECT LIQUEFACTION

作　　者：邓川[1] 肖勇[1] 仇义霞[1] 柳华[1] Deng Chuan;Xiao Yong;Qiu Yixia;Liu Hua(The Second Research Institute of CAAC,Chengdu 610041)

机构地区：[1]中国民用航空总局第二研究所

出　　处：《石油炼制与化工》2019年第9期97-101,共5页Petroleum Processing and Petrochemicals

基　　金：民航安全能力建设项目(AADSA2018021S)

摘　　要：以煤直接液化工艺生产的喷气燃料为研究对象,对比分析了喷气燃料常用净热值测定方法的适用性,包括GB/T 2429,ASTM D3338,ASTM D4529等计算类方法,及GB/T 384、ASTM D4809等精确测试类方法(氧弹法)。结果表明:因煤直接液化生产的喷气燃料烃类组成(环烷烃质量分数达90%,芳烃含量趋近于0)与石油基喷气燃料差异较大,计算类方法的结果不同程度偏低,特别是GB/T 2429、ASTM D4529等苯胺点计算法,与其他方法相比偏低明显,最大差值达0.3 MJ/kg;GB/T 384方法则会引入系统误差,导致结果偏低约0.2 MJ/kg。因此,对于煤直接液化生产的喷气燃料,若其净热值数据准确度要求较高,建议使用ASTM D4809方法进行精确测试;若没有特别要求,则建议使用ASTM D3338方法进行计算。The estimation method,such as GB/T 2429,ASTM D3338,ASTM D4529,and the precision methods(oxygen bomb method),such as GB/T 384 and ASTM D4809,are the commonly used methods for determination of net heat of combustion of jet fuel.The results indicated that because of the very different composition of coal direct liquefaction jet fuel from petroleum-based jet fuels,the net heat of combustion by estimation methods were lower in varying degrees,especially the aniline point estimation methods including GB/T 2429 and ASTM D4529,which were obviously lower than other methods with the maximum difference of 0.3 MJ/kg,because the coal direct liquefaction jet fuel contains a mass fraction of 90% cycloalkane and almost no aromatic hydrocarbon,which are markedly different from the composition of petroleum-based jet fuel.Systematic errors exist in the GB/T 384 method,resulting in a result about 0.2 MJ/kg lower.As a consequence,ASTM D4809 method was recommended as the net heat of combustion test method for coal direct liquefaction jet fuel when high accuracy of data was required,while ASTM D3338 method was recommended under the conditions of no special requirement.

关 键 词：净热值 煤 直接液化 喷气燃料 

分 类 号：TE6[石油与天然气工程—油气加工工程]