Does anyone know the reason why the slurry used for flue gas desulfurization and denitration in ammonia-based catalytic cracking turns red?
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Does anyone know the reason why the slurry used for flue gas desulfurization and denitrification in ammonia-based catalytic cracking turns red? The resulting sulfuric acid AN product has a dark color; I’m seeking help
Possible reasons are as follows: (1) It may be that the Fe3+ level is too high, the ammonia concentration is not up to standard, or the quality of the ammonia is poor； (2) It is caused by excessive levels of substances such as tar and phenols in the flue gas.
Ammonia solution is prepared by mixing purchased liquid ammonia with reverse osmosis water. How are tar and phenols in flue gas determined, teacher?
Such problems can only be solved through elimination; you are sure to be able to rule out some factors. If you want someone to help you solve a problem, you should try to express the useful information you know in an appropriate way, such as using a fishbone diagram. With your information as a framework, it becomes easier for experts to fill in the gaps. Is it appropriate to ask others to help you without giving them any payment, with no information provided?