MKS-MultiGas-高速燃烧排放气体分析仪（5Hz）

PROBLEM： The rising cost of fossil fuels and the worldwide need for reduction in green house gases have sparked renewed interest in alternative fuel sources that require less energy to produce. Gasification of biomass, coke and other residuals from petroleum, coal, municipal and industrial wastes can produce synthetic gas or "syngas". Syngas can be used directly as fuel; as well, it can be used to produce hydrocarbon fuels, hydrogen for fuel cells, and chemical feedstocks such as methanol. The analytical methods employed for quality assurance in syngas production must provide simultaneous and accurate data on mixtures of contaminants in the presence of high CO and CO2 content. The contaminant levels in syngas range in concentration from high ppm to % levels, depending upon the final product required.

The increasing use of new automotive fuel mixtures such as E85 and biodiesel is dramatically changing the chemical monitoring landscape in the development and manufacture of catalysts used to reduce vehicle emissions. Catalyst manufacturers have found that achieving regulatory compliance with these new and chemically complex fuels requires a level of knowledge of the combustion chemistry that goes well beyond the conventional need for CO, CO2, NO, NO2 and THCs analyses.

5 Hz Catalytic Emissions FT-IR Monitoring during Lean-Rich Engine Cycles: Comparison to Reference Methods

CUSTOMER CHALLENGES： 1.Reducing catalyst performance testing time； 2. Reducing development time and costs； 3. Maintenance of multiple analytical instruments； 4. Accurate measurement of low level NOx； 5. Speciation of gas components directly without gas conditioning... BACKGROUND Currently, new catalyst performance evaluations require numerous analytical instruments to measure all species at varying load levels. These analyzers are expensive, costly and time-consuming to maintain, and for many, require extensive sample conditioning. For example, most analyzers require that the moisture level be very low for the instrument to work properly. This sample conditioning has been shown to provide systematic errors in NOx measurements. Also some gases such as NH3 cannot be measured directly. In this case NH3 is converted to NOx and then analyzed which adds even more complexity and greater potential for systematic error.