Reasons for the excessive sulfur compound content in the purified gas
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Recently, the sulfur compound content in the purified gas has exceeded the specified limits, and adjustments have been made to the operating procedures, but with little effect. What are the possible reasons for this excess sulfur compound level?
Check the sulfur compound content at the inlet, the performance of the absorption towers, the desorption process in the sulfur compound desorption tower, and the regeneration process in the thermal regeneration tower. Additionally, methanol has limited capacity to absorb sulfur compounds after having absorbed large amounts of carbon dioxide
The amount of absorbent solution and temperature changes are all factors to be considered
Is it caused by excessive sulfur ammonia in low-methanol content?
It should be. May I ask how to make adjustments when the ammonia level exceeds the limit?
It depends on what kind of sulfur it is; if it’s organic sulfur, it needs to be converted into inorganic sulfur. If the level of inorganic sulfur is too high, it’s necessary to check the relevant indicators; it’s imported.
Raise it up, support the OP; the OP is so cool
No problem-solving? How to adjust it?
We have not encountered any cases where excessive ammonia in the lean methanol led to excessive sulfur levels in the purified gas. In fact, to date, the reason for excessive sulfur levels has always been large short-term fluctuations in the flow rate and concentration of lean methanol due to accidents or operational errors, which in turn affected the absorption process