Reasons for the increase in nitrogen content in the transformed gas
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Recently, the nitrogen level in the shift gas at the outlet of our shift converter has risen above the acceptable limits. However, the nitrogen content in the water gas produced by the gasifier in the upstream system is normal, and there is no nitrogen leakage into the shift converter. Could anyone help analyze this situation? We specialize in cobalt-molybdenum-based sulfur-resistant low-temperature shift reaction following Texaco’s water-coal slurry gasification for methanol production.
It is estimated that there is a leak in the purge nitrogen shut-off valve somewhere in the conversion system, with nitrogen leaking into the system; attention should be paid to the nitrogen whose pressure is higher than that of the conversion gas
No, this system contains only low-pressure nitrogen, and all connections are equipped with blind flanges.
The nitrogen level in the front system is normal, while it’s above the limit in the rear system; there’s also no internal leakage in the nitrogen valves. How strange is that? Are these data from laboratory analysis or online analysis?