Texaco gasification requirements for total sulfur content in raw coal
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For example, Texaco gasification requires sulfur content in coal. The downstream process is purification, including transformation, low-temperature methanol washing, and sulfur recovery. What are the requirements for sulfur content in such a process and is there a maximum limit? Generally speaking, what is the maximum allowable sulfur content in coal?
The gasifier itself does not have many requirements for sulfur content, which is mainly related to the corrosion resistance of downstream cooling, purification and slag discharge materials. Of course, the ability of the subsequent sulfur recovery device also needs to be considered. The currently commonly used sulfur-resistant transformation process (cobalt-molybdenum series catalyst) has no requirement for total sulfur content. Low-temperature methanol washing is used for desulfurization. There should be no limit. Of course, the higher the sulfur content, the higher the removal cost.
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