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本文设计用铂催化氢解,荧光光度法测定天然气中的微量硫。在900℃温度下,氢气与样气比为10:1时,有机硫经铂催化氢解为硫化氢,以氢氧化钠溶液吸收后,再加入荧光素汞进行荧光光度测定,此法设备简单、操作方便、测量迅速,20分钟可完成一次分析,测量范围宽、灵敏度高,可准确测量0.02～1000ppm的硫,1ppm以下测定的相对误差不大于15％。
In this paper, platinum-catalyzed hydrogenolysis was used to determine trace sulfur in natural gas by fluorescence spectrophotometry. When the ratio of hydrogen to sample gas is 10: 1 at 900 ℃, the organosulfur is catalytically hydrogenolyzed to hydrogen sulfide by hydrogenation and absorbed by sodium hydroxide solution. Fluorescein mercury is added for fluorescence spectrophotometry. The method is simple , Easy to operate, rapid measurement, 20 minutes to complete an analysis, measurement range, high sensitivity, accurate measurement of 0.02 ~ 1000ppm sulfur, 1ppm following the determination of the relative error of not more than 15%.