How to make a decision regarding the recovery of acidic gases such as H2S in coal chemical industries?
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How to make a decision regarding the recovery of acidic gases such as H2S in coal chemical industries? During the gasification process, sulfur is recovered from acidic gases containing sulfides such as H2S to produce sulfur or acid; among so many process technologies, how should one make a choice? In some sources, it is suggested that it is more cost-effective to omit the Claus sulfur recovery unit when producing acid; however, others argue that the quality of the acid produced is lower and the amount of finished product is less, leaving it difficult to decide what approach to take. Please give some advice; let’s discuss it!
It depends on how the company views it; from an economic perspective, sulfur recovery is not carried out and instead direct flaring is used. . . . The environmental requirement is to recycle sulfur
This gas should be vaporized and then sent to a torch for burning; sulfur recovery is not necessary as the sulfur content in this gas is very low. This gas contains CO2 and NH3, which easily form ammonium bicarbonate crystals, often causing blockages in the pipelines.