The scientific name of denitrification is SCR selective catalytic reduction technology.

具有很高的脱硝效率（70-90%），它是成熟的脱硝工艺，是脱硝应用广泛的技术。

With high denitration efficiency (70-90%), it is a mature denitration process and the most widely used denitration technology.

的意思是烟气中的氮氧化合物选择性的和还原剂进行反应，生成氮气和水，脱除烟气中的氮氧化合物（NOx）。

It means that nitrogen oxides in flue gas react selectively with reducing agent to generate nitrogen and water, and remove nitrogen oxides (NOx) in flue gas.

的化学反应方程式是：

The chemical reaction equation of is:

→4NO + 4NH3+O2 → 4N2 +6H2O

→4NO + 4NH3+O2 → 4N2 +6H2O

→6NO2 + 8NH3 + O2  → 7N2 + 12H2O

→6NO2 + 8NH3 + O2  → 7N2 + 12H2O

典型的SCR脱硝系统的工艺

Process of typical SCR denitration system

在SCR脱硝系统中，各种废气中含有的NOx和氨水、尿素或其他含有氨基的物质进行反应，生成氮气和水。

In SCR denitration system, NOx contained in various waste gases reacts with ammonia water, urea or other substances containing amino groups to generate nitrogen and water.

脱硝路线设计的考虑

Consideration of denitration route design

经处理排出的NOx必须满足和当地政府要求；

The NOx discharged after treatment must meet the national and local environmental protection requirements;

脱硝工艺要做到技术成熟、设备运行可靠，并有较多成功的运行业绩；

The denitration process should be mature in technology, reliable in equipment operation and have more successful operation performance;

根据工程的具体情况选择合适的方案，尽量减少成本费用；

Select the appropriate scheme according to the specific situation of the project to minimize the cost;

催化剂具有良好的抗高温老化性能力，良好的抗硫老化和再生性能。

The catalyst has good resistance to high-temperature aging, sulfur aging and regeneration.

脱硝系统管道布置合理，可实现烟气脱硝系统和余热装置的串联。

The pipeline layout of denitration system is reasonable, which can realize the series connection of flue gas denitration system and waste heat device.

脱硝设计方案要做到经济性和实用性并存，与客户合作是双赢的结果。

The denitration design scheme should be economical and practical, and cooperation with customers is a win-win result.

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