CAJ | 학술논문

非常规污染物排放成为制约甲醇替代燃料规模发展的制约因素。该文作者使用一辆分别燃用纯汽油、汽油中掺混10％和20％体积分数甲醇燃料的轻型汽油车，在底盘测功机上进行了在中国国家标准GB18352．3—2005中规定的I型排放试验。使用高效液相色谱仪、气相-质谱联用仪、Fourier变换红外光谱仪分别测量了不同比例甲醇汽油的甲醇、甲醛、乙醛、丙酮、苯、甲苯、二甲苯等排放。结果表明：使用Fourier变换红外光谱仪瞬时值积分和袋采化学分析两种方法都能较为准确地测量汽车尾气中的甲醛、苯、甲苯等排放。随着燃料中甲醇含量的增加，CH4、未燃甲醇和甲醛排放成比例增加，苯和甲苯排放略有增加，乙醛、丙酮和二甲苯排放基本不变。
비상규오염물배방성위제약갑순체대연료규모발전적제약인소。해문작자사용일량분별연용순기유、기유중참혼10％화20％체적분수갑순연료적경형기유차，재저반측공궤상진행료재중국국가표준GB18352．3—2005중규정적I형배방시험。사용고효액상색보의、기상-질보련용의、Fourier변환홍외광보의분별측량료불동비례갑순기유적갑순、갑철、을철、병동、분、갑분、이갑분등배방。결과표명：사용Fourier변환홍외광보의순시치적분화대채화학분석량충방법도능교위준학지측량기차미기중적갑철、분、갑분등배방。수착연료중갑순함량적증가，CH4、미연갑순화갑철배방성비례증가，분화갑분배방략유증가，을철、병동화이갑분배방기본불변。
Unregulated emissions have become an important factor restricting the development of methanol alternative fuels. Type I emission tests were carried on a chassis dynamometer according to the state standard of China, GB 18352.3- 2005, using a light-duty vehicle fuelled with pure gasoline and gasoline blend with methanol volume fractions of 10% and 20%. High performance liquid chromatography, gas chromatography-mass spectrometry, and Fourier transform infrared spectrometer (FTIR) were used to measure methanol, formaldehyde, acetaldehyde, acetone, benzene, toluene, xylene and other unregulated emissions from a vehicle fuelled with different proportions of methanol-gasoline blends. The test results show that the methods of the integration of FTIR instantaneous values and the chemical analysis of bag sampling can both accurately measure formaldehyde, benzene, toluene and other unregulated pollutant emissions in the vehicle exhaust. With increasing methanol content in the fuel, CH4, unburned methanol and formaldehyde emissions increase proportionally, with the benzene and toluene emissions having a slight increase and acetaldehyde, acetone and xylene emissions remaining basically the same.