Yellow smoke appears in the exhaust gases generated during gold smelting for acid production – what is the reason?
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Question 1: How can we determine what is contained in the mineral source, which causes such high ammonia nitrogen levels in the exhaust gases? Question 2: After installing a denitration system, can the denitration chemicals cause yellow smoke to appear in the exhaust gases? Question 3: Could you please introduce the denitration process and the denitration chemicals?
There are many methods such as the SCR method and the ozone method, with plenty of information available on forums.
Test the raw materials to check their composition； Yellow smoke is mainly caused by NOx; the main denitration processes are SNCR and SCR, which use ammonia for reduction