Boiler denitration

Release time:

2022-10-19

To sum up, the low nitrogen transformation mode of boiler denitration needs to be customized one-to-one according to different application scenarios, and we can be found to serve you if necessary.

Advantages and disadvantages of internal and external circulation low nitrogen transformation:

The low nitrogen transformation can be divided into internal flue gas circulation and external flue gas circulation: reduce the combustion temperature to 800-900 ℃, and some boiler reformers cannot be used, resulting in 8% - 9% energy loss. Flat nitrogen combustion and low humidity combustion reduce the combustion temperature. The internal circulation will lead to 3%~5% loss, and the external circulation will lead to 8%~9% loss. The internal circulation has a high requirement on the size of equipment. Not all equipment can be retrofitted with internal circulation, and the cost is relatively high.

Advantages: It is convenient for law enforcement. The one-time investment is relatively low; The risk of changing special equipment is relatively high in case of the imagination of enterprises' illegal discharge.

Disadvantages: it needs to be reported to the relevant competent department, monitored by the relevant department, and installed by a qualified installation company; In the process of transformation, there are relatively large potential safety hazards; Carbon monoxide exceeds the standard.

Advantages and disadvantages of terminal low nitrogen transformation:

Advantages: It belongs to the chimney tail gas transformation, and does not need to be reported. It saves 20000 yuan per ton per year, and costs 60000 to 70000 yuan per year. It saves energy and has low urea energy consumption.

Disadvantages: It is not convenient for law enforcement, and one-time investment is relatively high; The maintenance of ammonia gas is relatively complicated, and the catalyst needs to be replaced regularly, so there is a risk of ammonia escaping.

To sum up, the low nitrogen transformation mode of boiler denitration needs to be customized one-to-one according to different application scenarios, and we can be found to serve you if necessary.

News center