煤制乙二醇过程中硫化物的测定方法及其选择

Determining Methods and Its Choice for Sulfide in the Production Process of Coal-to-EG

气体中硫化物含量的测定方法根据含量不同而分类。痕量硫的测定方法有气相色谱-PFPD法和紫外荧光法,微量硫的测定方法有气相色谱法、比色法和检测管法,高含量硫的测定方法有碘量法和气相色谱-TCD法等。根据煤制乙二醇不同工段的气体组成特点,进行硫化物测定方法的选择。

According to the content of sulfide, assaying methods can be divided to different categories. Gas chromatography-PFPD and ultraviolet fluorescence method are used for determining trace sulfide. Methods for micro sulfide have gas chromatography,colorimetry and detector tube method. Gas chromatography-TCD and iodimetry are used for determining high-content sulfide. For features of gas in different sections of coal-to-EG,different methods are chosen to determine the content of sulfide.