Sulfides were detected in the exhaust gas from the polypropylene degassing chamber
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A certain amount of organic sulfur was detected in the exhaust gas from the degassing chamber of the polypropylene plant, including 17.8 mg/m3 of ethanethiol and 4.1 mg/m3 of diethyldithiether. Regarding the sulfides in the polypropylene feedstock, analysis showed that they are mainly carbonyl sulfides, which have been removed in the feedstock purification unit; no sulfides were detected before the material entered the polymerization unit. However, after the polymerization reaction, the exhaust gas from the degassing chamber contains large amounts of organic sulfur. Experts, could you please tell me the sources of this organic sulfur as well as feasible treatment methods!
Are the testing methods for exhaust gas detection and raw gas detection the same?
It’s the same; chromatography is used for detection in both cases
Can propylene polymerization also release sulfur? Moreover, with such a high thiol content, such a high sulfur level in the polymerization process will result in poor reaction performance. . .