甲醇燃料汽车尾气非常规成分采样装置的设计及成分分析  

Design of Sampling System for Methanol-fueled Tail Gas and its Compositon Analysis

作　　者：梁英[1] 吴德生[1] 苟小静[2] 林川[2] 蔡春华[2] 黄武斌[2] 王安[3] 陈广元[3] 邵国祥[1] 孙成均[1] 

机构地区：[1]四川大学华西公共卫生学院 [2]中国石油西南油气田分公司川西北气矿 [3]四川大学建筑与环境学院

出　　处：《四川大学学报（工程科学版）》2005年第3期52-55,共4页Journal of Sichuan University (Engineering Science Edition)

基　　金：中国石油西南油气田分公司川西北气矿资助项目(XNS05JS2003-82);四川大学校青年基金资助项目(0030505505011)

摘　　要：为了研究以甲醇为燃料的汽车尾气的健康效应,设计了一套适合于采集甲醇尾气中非常规成分的装置。此装置以水为吸收液,多孔玻板吸收管为采集器,在冷凝条件下收集甲醇燃料汽车尾管直排气。样品经气相色谱-质谱联用仪(GC/MS)分析。结果表明,本试验装置成功地收集了甲醇尾气中的非常规成分。经测试,非常规成分有2种,分别为甲醇和甲醛,含量分别为(2.85±0.02)g/m3和(44.33±0.94)mg/m3;甲醇尾气中未采集到颗粒物。除此之外,还对甲醇尾气中的常规成分进行了现场测定,结果CO浓度为(4.02±0.77)%,碳氢化合物(HC)浓度为(1.16±0.08)g/m3,低于汽油尾气。To study the health effects of methanol-fueled tail gas, a sampling system was designed,which collects the tail gas directly from tail pipe in the fritted glass bubbler with water under cooling condition. The samples were measured by GC/MS without any treatment. The results showed that the sampling system successfully collects the unconventional components of the tail gas, which are methanol (2.85±0.02) g/m^3 and formaldehyde (44.33±0.94) mg/m^3 respectively. Particle matters have not been gotten in the tail gas.In addition, the conventional components CO and hydrocarbons (HC) were determined (4.02±0.77) % and (1.16 ±0.08) g/m^3 respectively, which were lower than that of gasoline-fueled tail gas.

关 键 词：甲醇燃料 汽车尾气采样装置 尾气分析 气相色谱-质谱 

分 类 号：X831[环境科学与工程—环境工程]