Oxygen content in propylene
Thread Content
Do you test the oxygen content in propylene? How can this be controlled?
The oxygen content is mainly carried by liquefied gas. It is mainly caused by poor degassing of the catalyst; the medium used to loosen the regeneration inclined tubes can be replaced with steam or nitrogen.
Both CO and CO2 levels are within the acceptable range; could this also be related to the sampling method?
The loose medium in the regenerated inclined tubes is now steam
If the downstream units using propylene as a raw material have strict requirements regarding the allowable oxygen content in the raw material, analysis and testing should be carried out. For example, in units such as butyl octyl alcohol, the oxygen content in the feedstock has a significant adverse effect on the carbonylation catalyst system; therefore, the required oxygen content in polymeric-grade propylene feedstock is typically 5 ppm Vol (Max.).
It is related to the sampling method to some extent.
Is it related to sampling? The air content in propylene is directly related to sampling.