Three-in-one salt, acid – methods for hydrogen and chlorine detection
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The company plans to launch a waste salt electrolysis project, using the diaphragm method to recover sodium chloride from wastewater, and then utilizing the by-produced hydrogen and chlorine to produce hydrochloric acid in a three-in-one graphite synthesis furnace. Pilot testing is about to begin now, but I’m reluctant to spend money on online spectral analysis for gases. I would like to ask the experienced colleagues about the chlorine content, oxygen content, and hydrogen content at the anode outlet of the electrolyzer ； Hydrogen content and oxygen content at the cathode outlet ； Chlorine content and oxygen content in the synthesis furnace ； How can the hydrogen and oxygen content in the feed to the synthesis furnace be measured using methods other than spectral analysis? ? ? ?
Some impurity components in these samples can be analyzed using a chromatograph. The purity of chlorine can be determined using the reductant absorption-redox titration method, which is much more accurate than instrumental analysis methods. The oxygen content in hydrogen can be determined using gas chromatography, and the oxygen content in chlorine in synthesis furnaces can also be measured with gas chromatography. Why must a spectrometer be used? I really can’t think of what type of spectrometer can be used to detect hydrogen content.
Have you had that tested? It shouldn’t be a method from the literature. When using gas chromatography with the columns and molecular sieves purchased from CNKI literature, no peak is observed for hydrogen. Please provide practical methods
Don’t use the methods from the literature; then you just need to develop your own analysis methods.
What are the components of the background gas? Could the lack of a peak be due to the larger component peaks masking the hydrogen component? Central cutting is required for this, but in general, hydrogen from molecular sieves comes from the first component, so the possibility of it being masked by the peak of the larger components is very low.