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首页> 外文会议>The proceedings of AD 2004: Running for the roses – a process analysis derby >ON-LINE ANALYZER FOR LOW CONTENT SULFUR MEASUREMENT-ADVANCES IN WINDOW DEVELOPMENTS AND NESSI INTEGRATION
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ON-LINE ANALYZER FOR LOW CONTENT SULFUR MEASUREMENT-ADVANCES IN WINDOW DEVELOPMENTS AND NESSI INTEGRATION

机译：窗口开发和NESSI集成中低含量硫测量在线分析仪的发展

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摘要

Sulfur content in transportation fuels is subject to the Environmental Protection Agency’s (EPA’s) CleanrnAir Act regulation. This requires reductions to less than 30ppm sulfur in gasoline and 15ppm sulfur inrndiesel for highway vehicles by 2006. These ultra low sulfur fuels require close monitoring throughoutrnthe refining and distribution chain. An on-line sulfur analyzer based on monochromatic wavelengthrndispersive x-ray fluorescence (WDXRF) using monochromatic excitation has been developed by XOSrnfor low sulfur content measurements. Advances in sample window technology that allow higher fuelrnstream pressures, and extremely low contamination build-up on the sample window are discussed in thisrnpaper. Integration of a sample management system based on NeSSI (New Sample Sensor Initiative) willrnbe reviewed. Developments in the window module allow for six-months of maintenance free operation.rnThe innovative window design employed allows for the inlet pressure of the fuel stream to be as high asrn90 psig. System response to changes in the process stream, maintenance and integration of the modularrnNESSI components will also be discussed. Data collected in house and in the field are presented andrndiscussed.
机译：运输燃料中的硫含量受美国环境保护局（EPA）的《清洁空气法》（CleanrnAir Act）管制。这就要求到2006年将用于公路车辆的汽油中的硫减少到30ppm以下，将硫含量减少到15ppm以下。这些超低硫燃料需要在整个精炼和分销链中进行密切监控。 XOSrn已开发出一种基于单色波长色散X射线荧光（WDXRF）的在线硫分析仪，该光谱使用单色激发，用于低硫含量的测量。本文讨论了样品窗技术的进步，该技术允许更高的燃料流压力，并在样品窗上积聚极低的污染物。将审查基于NeSSI（新样品传感器计划）的样品管理系统的集成。车窗模块的发展可实现六个月的免维护运行。采用的创新车窗设计可使燃料流的入口压力高达90 psig。还将讨论系统对过程流中的更改的响应，模块化NESSI组件的维护和集成。介绍并讨论了在室内和现场收集的数据。

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