无铅汽油在定容燃烧过程中苯排放的试验研究  

Study on Benzene Emissions of Unleaded Gasoline in Constant Volume Combustion Bomb

作　　者：李西秦[1] 黎苏[2] 刘冰[3] 

机构地区：[1]浙江科技学院机械与汽车工程学院,浙江杭州310023 [2]河北工业大学能源与环境工程学院 [3]浙江科技学院图书馆

出　　处：《小型内燃机与摩托车》2012年第3期89-92,共4页Small Internal Combustion Engine and Motorcycle

基　　金：浙江省自然科学基金项目(Y1110071);浙江省科技计划项目(2010C25039)

摘　　要：无铅汽油的广泛使用,使得汽车排放物中有害物质苯的数量有所增加。为了解汽油燃烧过程中苯的生成规律,选用93#汽油、基础油和适当比例的添加剂为试验燃料,在定容燃烧弹上进行了一系列试验研究,利用气相色谱仪分析得到苯的排放量。试验结果表明,燃烧产物中的苯源于未完全燃烧的燃油,燃烧过程中裂解出的小分子自由基也会形成苯,在燃料中添加乙醇后,苯的排放量并不一定增加。Using unleaded gasoline widely in vehicles increases the emission of harmful benzene. In order to know the formative rules of benzene in gasoline combustion process, the 93# gasoline, base stock and appro- priate additives are chosen as the test fuel. A series of tests are carried out in the constant volume combustion bomb. The emission of benzene is measured by a gas phase chromatography. The test results show that the benzene in combustion products comes from the incomplete combustion fuel. The free radicals out of cracking fuel may also become benzene in combustion process. Adding ethanol in fuels does not necessarily increase the emission of benzene.

关 键 词：定容燃烧 汽油机 苯排放 添加剂 

分 类 号：TK411.28[动力工程及工程热物理—动力机械及工程]