The working principle of the flue gas denitration system is that the urea solution is decomposed into ammonia (NH3) and water (H2O) when encountering high temperature flue gas in the mixing zone of the exhaust pipe. After fully mixing with the flue gas, it enters the catalyst module, where NH3 and NOx react to generate harmless nitrogen (N2) and water (H2O), which are discharged through the exhaust pipe to meet the standard.

尿素溶液分解如下：

The urea solution is decomposed as follows:

尿素經(jīng)熱解、水解生成氨氣，為反應(yīng)提供原料。

Urea is pyrolysed and hydrolyzed to produce ammonia gas, which provides raw materials for the reaction.

純SCR脫硝系統(tǒng)特點(diǎn)

Characteristics of pure SCR denitrification system

煙氣脫硝系統(tǒng)凈化效率高，滿足投標(biāo)方對(duì)設(shè)備的凈化要求；

The flue gas denitrification system has high purification efficiency and meets the purification requirements of the Bidder for equipment;

適用溫度范圍廣，在400--550℃的治理溫區(qū)均能保持較好的活性；

Suitable for a wide range of temperatures, and can maintain good activity in the treatment temperature range of 400 to 550 ℃;

SO2轉(zhuǎn)化率低，NH4HSO4 (ABS)的生成量低；

Low SO2 conversion rate and low production of NH4HSO4 (ABS);

精確尿素溶液計(jì)算控制，高精度計(jì)量噴射系統(tǒng)，運(yùn)行成本低；

Accurate urea solution calculation and control, high-precision metering and injection system, low operating cost;

煙氣脫硝系統(tǒng)背壓小，減少對(duì)天然氣發(fā)電機(jī)組功率影響；

The back pressure of the flue gas denitrification system is small, reducing the impact on the power of the natural gas generator unit;

脫硝系統(tǒng)安裝位置合理，占地面積小，且保養(yǎng)、維修方便；

The installation position of the denitrification system is reasonable, with a small floor area, and convenient maintenance and repair;

內(nèi)燃機(jī)專用脫硝催化劑性能特點(diǎn)：

Performance characteristics of dedicated denitrification catalysts for internal combustion engines:

高活性催化劑：多孔結(jié)構(gòu)為催化劑提供了大的內(nèi)表面積，提供大量活性位，保證催化劑高活性。

High activity catalyst: The porous structure provides a large internal surface area for the catalyst, providing a large number of active sites, ensuring high activity of the catalyst.

非常高的抗毒性：優(yōu)化的多空結(jié)構(gòu)使得催化劑具有吸收大量毒物的能力而不會(huì)引起活性降低。

Very high anti toxicity: The optimized porous structure allows the catalyst to absorb large amounts of toxins without causing a decrease in activity.

對(duì)熱沖擊和機(jī)械沖擊的高耐受力：催化劑的纖維強(qiáng)化使得催化劑具有結(jié)構(gòu)靈活性，并且使其對(duì)熱沖擊具有高耐受性。催化劑能在臺(tái)架任何正常的負(fù)荷下運(yùn)行；

High resistance to thermal and mechanical shock: The fiber strengthening of the catalyst provides structural flexibility and high resistance to thermal shock. The catalyst can operate under any normal load on the bench;

在達(dá)到標(biāo)書要求的脫硝效率同時(shí)，能有效防止碳煙顆粒在催化劑中發(fā)生粘污、堵塞及中毒現(xiàn)象發(fā)生；

While meeting the denitrification efficiency required by the bidding document, it can effectively prevent carbon smoke particles from sticking, blocking, and poisoning in the catalyst;

催化劑化學(xué)壽命為20000小時(shí)，質(zhì)保16000小時(shí)；

The chemical life of the catalyst is 20000 hours, with a warranty of 16000 hours;

催化劑設(shè)計(jì)考慮燃料中含有的任何微量元素可能導(dǎo)致的催化劑中毒；

The catalyst design considers any trace elements contained in the fuel that may cause catalyst poisoning;

在加裝新的催化劑之前，催化劑體積滿足性能保證中關(guān)于脫硝效率和氨逃逸等的要求。

Before adding a new catalyst, the catalyst volume should meet the requirements for denitrification efficiency and ammonia escape in the performance guarantee.

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