Sulfur content in methanol product
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Recently, some manufacturers have requested methanol with a total sulfur content of less than 2 ppm. I wonder if it is difficult to achieve this specification?
Is there sulfur in methanol? Was the catalyst not poisoned?
Methanol contains sulfur; won’t the catalyst be poisoned?
The feed gas used for methanol production always contains trace amounts of gases such as H2S and SO2. Sulfur-containing gases have a relatively high solubility in methanol; therefore, if the concentration of H2S, SO2, and other such gases in the syngas is high, the resulting methanol will contain sulfur. According to the current mainstream methanol production processes, these gases are generally kept at levels below 1 PPM; in some cases, they are even controlled at the PPB level, so that sulfur content in the resulting methanol is essentially undetectable.
Thank you for your guidance. The customer indeed made such a request; they said that the sulfur content in methanol produced from coal as a raw material is above 2PPm. Since they are not familiar with methanol, they turned to experts on the forum for advice
Currently, in the production of methanol from coke oven gas, the total sulfur content is generally kept below 0.1 ppm
During the production of methanol, catalysts require very low levels of sulfur, usually below 0.1PPM. Therefore, desulfurization devices are used in the production process, which ensures that the sulfur content in methanol remains below 0.1PPM
Ask about how to analyze sulfur in methanol