本文選題：燃煤電廠 + 氮氧化物　； 參考：《內(nèi)蒙古大學(xué)》2016年碩士論文

【摘要】：近年來(lái),國(guó)內(nèi)環(huán)保形勢(shì)日趨嚴(yán)峻,國(guó)家對(duì)環(huán)境保護(hù)更加重視,連續(xù)發(fā)布了《大氣污染防治行動(dòng)計(jì)劃》十條措施和新修訂《中華人民共和國(guó)大氣污染防治法》,促使許多火電廠開(kāi)展脫硫除氮的技術(shù)改造,煙氣脫硝工藝種類(lèi)日趨繁多,然而脫硝技術(shù)改造通常涉及成本、技術(shù)、社會(huì)、資源與環(huán)境等諸多方面,各種脫硝工藝優(yōu)缺點(diǎn)不同,不同的火電廠又存在自身特點(diǎn)。因此,如何立足于燃煤電廠的生產(chǎn)運(yùn)營(yíng),科學(xué)合理的分析脫硝技術(shù)改造中涉及的相關(guān)因數(shù),評(píng)估和優(yōu)選成本低、效益好、經(jīng)濟(jì)適用且技術(shù)先進(jìn)、去除率高對(duì)環(huán)境影響小的脫硝技術(shù)方案,具體很強(qiáng)的現(xiàn)實(shí)意義。本文基于海勃灣發(fā)電廠脫硝改造工程項(xiàng)目實(shí)際,使用的SCR氮氧化物排放控制技術(shù)為實(shí)例。監(jiān)測(cè)數(shù)據(jù)顯示,在機(jī)組工況負(fù)荷為92.7%～100.0%,平均負(fù)荷為98.7%的情況下,脫硝設(shè)施甲側(cè)進(jìn)口最大折算濃度為428mg/m3,出口NOx最大排放濃度為79.3mg/m3。乙側(cè)進(jìn)口最大折算濃度為393.4mg/m3,出口NOx最大排放濃度為75.8mg/m3,總出口NOx最大排放濃度為95.9mg/m3。脫硝設(shè)施甲側(cè)脫硝效率為81.2%-83.1%、乙側(cè)脫硝效率為80.1%-80.6%。氨區(qū)氨氣無(wú)組織排放監(jiān)測(cè)結(jié)果最大值為0.113mg/m3。最后,對(duì)氮氧化物防治技術(shù)建設(shè)和運(yùn)行進(jìn)行科學(xué)的綜述、對(duì)比、評(píng)估,為其選擇經(jīng)濟(jì)、適用的脫硝改造技術(shù)提供了合理的依據(jù),為電力企業(yè)開(kāi)展的氮氧化物治理提供一份參考。
[Abstract]:In recent years, the situation of environmental protection in China has become increasingly serious, and the state has paid more attention to environmental protection. Ten measures of the Action Plan for the Prevention and Control of Air pollution and the new revision of the Law of the people's Republic of China on the Prevention and Control of Atmospheric pollution have been issued in succession, which has prompted many thermal power plants to carry out the technical transformation of desulfurization and nitrogen removal, resulting in a growing variety of flue gas denitrification processes. However, denitrification technology usually involves many aspects, such as cost, technology, society, resources and environment. The advantages and disadvantages of various denitrification processes are different, and different thermal power plants have their own characteristics. Therefore, how to base on the production and operation of coal-fired power plant, scientifically and reasonably analyze the related factors involved in denitrification technology transformation, evaluate and select the low cost, good benefit, economic application and advanced technology, The technical scheme of denitrification with high removal rate and little environmental impact is of great practical significance. Based on the practice of denitrification project in Haibo Bay Power Plant, the SCR nitrogen oxide emission control technology is used as an example. The monitoring data show that under the condition that the working load of the unit is 92.7% and the average load is 98.7%, the maximum conversion concentration of the inlet of the denitrification facility is 428 mg / m ~ 3, and the maximum emission concentration of the export NOx is 79.3 mg / m ~ (3). The maximum commutation concentration of B side is 393.4 mg / m ~ (3), the maximum emission concentration of export NOx is 75.8 mg / m ~ (3), and the maximum emission concentration of total export NOx is 95.9 mg / m ~ (3). The denitrification efficiency of the denitrification facility was 81.2% -83.1% and 80.1% -80.6% for the second side denitrification facility. The maximum value of monitoring ammonia gas emissions in ammonia region is 0.113 mg / m ~ (3). Finally, the construction and operation of nitrogen oxide prevention technology are summarized, compared and evaluated, which provides a reasonable basis for its choice of economy and suitable denitrification technology, and provides a reference for the nitrogen oxide treatment carried out by electric power enterprises.
【學(xué)位授予單位】：內(nèi)蒙古大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2016
【分類(lèi)號(hào)】：X773

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