Odor problem in the recycled methanol from low-temperature methanol washing
Thread Content
The methanol-poor stream from low-temperature methanol washing has a strong odor; I’m not sure what the reason is
For organic sulfur, it is recommended to analyze sulfides such as thiol and thiophene.
How can it be adjusted to get it out?
The rows can never be completely filled (a dynamic equilibrium is established). It can only replace methanol or remove organic sulfur from the upstream stage.
The presence of an unpleasant odor indicates a high H2S content in the lean methanol, as well as an incomplete separation process. It is necessary to pay attention to process parameters such as the temperature of the separation tower; simply adding more methanol will not resolve the problem completely.
I agree with the opinion above; the extraction of organic compounds depends on whether your system has an extraction process available. By extracting the methanol-rich fluid from the lower section of a tower, it is possible to obtain some organic compounds
Which companies, both domestic and international, use the low-temperature methanol washing process? ?
This foul smell is usually caused by a high content of total sulfur (H2S + organic sulfur). Let’s take a look at the temperature parameters related to methanol regeneration; quantitative replacement of methanol can effectively alleviate the issue.
Linde, Luchi, Dalian University of Technology