Differences between caprolactam-grade sulfuric acid AN, coking-grade sulfuric acid AN, and power plant-grade sulfuric acid AN
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I’ve been thinking about buying sulfuric acid AN recently. I heard that it comes in grades such as caprolactam grade, coking grade, and power plant grade – it’s a bit confusing. What are the differences between them? How to tell the difference? What grade is the sulfuric acid produced by Datang Kheshikten Banner?
Anhydrous sulfuric acid can be of synthetic origin or produced as a by-product； The sulfuric acid of caprolactam is a by-product ； Sulfur is present in the flue gases from power plants and the gas produced by coking plants. In order to remove sulfur from their flue gases, power plants and steel mills, as well as coking plants aiming to eliminate impure sulfur, use the ammonia-based desulfurization method; this process generates sulfuric acid as a by-product. If the quality standards are followed, there should be little difference in the quality of this sulfuric acid.
Sulfuric acid AN in coking plants is produced by removing ammonia from gas, with the remaining ammonia water being used to produce ammonia.