New exhaust emission standards
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Experts say that the SO2 emission standard for sulfuric acid systems should be changed to 400 Mg/m3, which is approximately 120 ppm, for discussion.
Reply 1# yiyunjin: Yes, it is said that the new standards came into effect in 2012. The standard for acid mist, that is, the SO3 emission limit, remains at 45 mg/m³; however, the SO2 emission limit has been changed to 400 mg/m³. New factories being built now are required to adhere to these new standards, as otherwise they won’t be able to pass the inspection:loveliness:
Reply to 1# yiyunjin regarding experts? What are the current **emission standards?
What is being referred to are *industry standards; as a result, the selection of catalysts and the required amount of catalyst to be used, as well as the selection of mist eliminators and exhaust gas recovery systems, need to be addressed promptly
Experts say that the SO2 emission standard for sulfuric acid systems should be changed to 400 Mg/m3, which is approximately 120 ppm, for discussion. It should be 140 ppm
This post was last edited by txglyl on 2010-7-5 14:01. What? Weren’t we supposed to change it to 150 ppm? It is still 960 Mg/m3 at present.
Xiao Ming Ge: 960mg/m3 is equivalent to 340ppm
If a tail suction device is required in all cases, the requirement for conversion efficiency actually decreases. However, the operating costs of the enterprise will increase significantly due to the wake effect.
If the new standard is implemented, then the devices already built must be equipped with tail suction; otherwise, how can those devices be modified? A SeaFriend who has had successful experiences with tail suction would like to share their insights for everyone’s benefit.