Acid gas offline analysis spectrum of the sulfur unit?
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The acidic gases in sulfur plants include hydrogen sulfide, sulfur dioxide, ammonia, carbonyl sulfide, carbon dioxide, etc. For our analysis, we use a GDX502 column and the external standard method along with TCD; however, using standard gases for calibration makes it impossible to separate sulfur dioxide from ammonia. I seek advice from those with experience – what are the appropriate spectral settings and analysis conditions? Learn from it, thank you
This post was last edited by qugd on 2016-1-4 20:07. Can the original poster be sure that the gas in question contains both sulfur dioxide and ammonia? Can these two gases be mixed together in the same standard gas cylinder? Please confirm first.
Sulfur dioxide is a separate standard gas, but when performing calibration, it needs to be injected separately.
This post was last edited by qugd on 2016-1-6 09:35. Should the separation conditions be optimized? The retention of ammonia and sulfur dioxide remains similar under your current separation conditions. By appropriately adjusting the separation conditions, it may be possible to separate these two components.