How is sulfur removed from coal?
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Sulfur is the main harmful element in coal, and during its coking, gasification, and combustion, substances such as H2S and SO2 are generated, which are harmful to both the processing processes and the environment. Therefore, sulfur removal and recovery are one of the core technologies in clean coal. Forms of sulfur in coal: The main forms of sulfur in coal are inorganic sulfur and organic sulfur, which together are referred to as total sulfur. This post was last edited by in the blink of an eye on 2008-1-29 15:51]
The methods for removing impurities during gasification generally fall into wet and dry categories. Wet methods include low-temperature methanol washing, NHD, amine processes, ADA, etc. Dry methods involve iron-based desulfurization agents, aluminum-based organic sulfur hydrolysis catalysts, activated carbon-based desulfurization agents, zinc oxide-based desulfurization agents, etc. Recovery processes include the Claus process (super Claus), direct oxidation method (Clinsulf-Do by Shengyi Company), oxygen-enriched sulfur recovery processes, and the two-stage C-C process (by Shengyi Company), among others
We can use your coal as a raw material in the production of acid from gypsum, while also producing cement as a by-product
We can use your coal as a raw material in the production of acid from gypsum, while also producing cement as a by-product
That coal of yours can be added to the raw materials used for producing acid from gypsum, with cement being produced as a by-product. We are working on this. Last edited by chp on 2008-4-28 16:52.]
Yes, it kills two birds with one stone. It’s better if it has a higher sulfur content.