Which desulfurization fluid is best for producing methanol through wet desulfurization of coke oven gas?

1. Medium-temperature iron oxide: It can only remove inorganic sulfur and has no effect on removing organic sulfur. Sulfur capacity is around 15. 2. Zinc oxide: It has an excellent effect on removing inorganic sulfur, achieving levels below 1 PPM or even lower, and it is also effective in removing carbonyl sulfide from organic sulfur. If the sulfur content after hydrogenation is low (for example, in the range of a few dozen PPM), zinc oxide can be used. However, if the sulfur content is high (for example, above 100 PPM), its use is not recommended due to the high cost of zinc oxide; frequent replacement would result in significant additional costs. It is currently generally used after two-stage hydrogenation as a final desulfurization agent. Sulfur capacity is around 25. 3. Ferromanganese desulfurizer: It can effectively remove organic sulfur other than thiophene, reducing its level to below 5PPM, and it can also absorb inorganic sulfur. It is cost-effective to use this desulfurizer in this section at present. Because it has an excellent effect on the removal of organic sulfur, one stage of hydrogenation can be omitted; this bifunctional desulfurizer can be used directly, followed by a second stage of hydrogenation for desulfurization. It’s much cheaper than zinc oxide, around 1/3 to 1/4 of the price. However, this type of desulfurizer needs to be reduced before use, which requires the preparation of nitrogen and hydrogen reduction equipment. Sulfur capacity is around 20. These days, iron-manganese is being used more often, as it combines a hydrogenation step with an absorption step, thus saving a lot of effort. The specific desulfurizing agent to be used and its service life depend on the conditions of the feed gas.

Desulfurization is carried out using the wet oxidation method in combination with dry precision desulfurization. For desulfurization via wet oxidation, cobalt phthalocyanine-based desulfurizing agents can be used (there are many manufacturers, and most of them assist with getting the desulfurization process up and running). However, when designing the system, the desulfurization capacity of the wet oxidation method should be set relatively high, so as to easily achieve a sulfur content of less than 20 milligrams; this results in lower pressure requirements for the dry precision desulfurization step.

Desulfurization is carried out using the wet oxidation method in combination with dry precision desulfurization. For desulfurization via wet oxidation, cobalt phthalocyanine-based desulfurizing agents can be used (there are many manufacturers, and most of them assist with getting the desulfurization process up and running). However, when designing the system, the desulfurization capacity of the wet oxidation method should be set relatively high, so as to easily achieve a sulfur content of less than 20 milligrams; this results in lower pressure requirements for the dry precision desulfurization step.