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

具有很高的脫硝效率（70-90%），它是成熟的脫硝工藝，是脫硝應用廣泛的技術。

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

的意思是煙氣中的氮氧化合物選擇性的和還原劑進行反應，生成氮氣和水，脫除煙氣中的氮氧化合物（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.

的化學反應方程式是：

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脫硝系統的工藝

Process of typical SCR denitration system

在SCR脫硝系統中，各種廢氣中含有的NOx和氨水、尿素或其他含有氨基的物質進行反應，生成氮氣和水。

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.

脫硝路線設計的考慮

Consideration of denitration route design

經處理排出的NOx必須滿足國家和當地政府環保要求；

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

脫硝工藝要做到技術成熟、設備運行可靠，并有較多成功的運行業績；

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

根據工程的具體情況選擇合適的方案，盡量減少成本費用；

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

催化劑具有良好的抗高溫老化性能力，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.

脫硝系統管道布置合理，可實現煙氣脫硝系統和余熱裝置的串聯。

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

脫硝設計方案要做到經濟性和實用性并存，與客戶合作是雙贏的結果。

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

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