The impact of untreated gas on low-temperature methanol washing
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In coal chemical production, what impact does unshifted process gas have on the methanol wash system?
No transformation was applied. The carbon dioxide content is very low. It is difficult to control the methanol circulation rate during absorption, as low-temperature methanol washing requires a minimum circulation rate. A large amount of methanol can easily cause an imbalance in cooling capacity
Does untreated gas contain organic sulfur? If it does, will this have an impact on the subsequent methanol washing system?
Firstly, without any transformation, the system’s air stripping cooling capacity is low, requiring a very large refrigeration compressor. Furthermore, the system has some organic sulfur issues, and the difference compared to processes with conversion is not significant.
This post was last edited by wangdu*ng on 2017-3-9 08:04. The issue of organic sulfur you mentioned is closely related to gasification, right? The organic sulfur content in the gas produced by different types of gasifiers varies.
I’m not very clear about the relationship between organic sulfur and gasification. Organic sulfur is related to shift reaction, as shift catalysts can convert part of the organic sulfur into hydrogen sulfide
That’s exactly what it means; however, the amount of organic sulfur varies depending on the type of vaporization furnace, and those with lower levels of such sulfur do not have much impact on subsequent processing steps.
It depends on the circumstances; I didn’t change it when I was working at a company in Xinjiang. It has no effect on low-temperature methanol washing. The question depends on the carbon dioxide content in the process gas Does it affect the cooling balance?
What kind of enterprise are you referring to?