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水泥窯爐氨逃逸治理

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江蘇創(chuàng)騰環(huán)保科技有限公司,座落于享有“東方濕地之都”美譽(yù)的江蘇鹽城,東鄰黃海,西傍古運(yùn)河。東西南北平面交通順暢,海陸空立體運(yùn)輸便捷,已融入上海2.5小時(shí)經(jīng)濟(jì)圈。公司是一家集科研、開(kāi)發(fā)與制造為一體的企業(yè)。公司近年來(lái)先后獲得“重合同守信用企業(yè)”、“中國(guó)建材企業(yè)”、“全國(guó)質(zhì)量誠(chéng)信示范企業(yè)”、“全國(guó)消費(fèi)者信得過(guò)企業(yè)”,并獲得多項(xiàng)產(chǎn)品榮譽(yù)和表彰。自創(chuàng)建以來(lái),以誠(chéng)信為企業(yè)宗旨,以產(chǎn)品質(zhì)量為企業(yè)生命,并圍繞市場(chǎng),內(nèi)改外聯(lián),與南京師范大學(xué)化學(xué)院、南京東南大學(xué)、南京水泥研究設(shè)計(jì)院、南京工業(yè)大學(xué)、合肥水泥研究設(shè)計(jì)院等大專(zhuān)院校及科研單位對(duì)系列脫硫脫硝裝置的新建及二次改造優(yōu)化升級(jí),使產(chǎn)品的質(zhì)量性能不斷提高、信譽(yù)度不斷的增強(qiáng)。本公司是環(huán)境節(jié)能工程設(shè)計(jì)安裝的專(zhuān)業(yè)化公司,產(chǎn)品涉及建材、化工、冶金、電力、鋼鐵、礦山、鑄造等領(lǐng)域,用戶遍及全國(guó)各地,產(chǎn)品遠(yuǎn)銷(xiāo)海內(nèi)外。在市場(chǎng)競(jìng)爭(zhēng)激烈的情況下,公司堅(jiān)持以質(zhì)量至上、用戶至上的方針,以?xún)?yōu)良的產(chǎn)品質(zhì)量來(lái)吸引客戶、以周到熱情的售后服務(wù)來(lái)贏得客戶。Jiangsu chuangteng Environmental Protection Technology Co., Ltd. is located in Yancheng, Jiangsu Province, which enjoys the reputation of "Oriental wetland capital", adjacent to the Yellow Sea in the East and the ancient canal in the West. With smooth traffic in the East, West, North and south, and convenient three-dimensional transportation by sea, land and air, it has been integrated into the 2.5-hour economic circle of Shanghai. The company is a set of scientific research, development and manufacturing as one of the enterprises. In recent years, it has won many honors and commendations, such as "contract abiding and trustworthy enterprise", "Chinese excellent building materials enterprise", "national quality and integrity demonstration enterprise", "national consumer trustworthy enterprise", and a number of product patents.Since its establishment, with integrity as the enterprise tenet, product quality as the enterprise life, and centering on the market, internal reform and external liaison, we have built and upgraded a series of desulfurization and denitrification devices with the College of chemistry of Nanjing Normal University, Nanjing Southeast University, Nanjing Cement Research and Design Institute, Nanjing University of technology, Hefei Cement Research and Design Institute and other colleges and scientific research institutions, So that the quality and performance of products continue to improve, reputation continues to enhance.Our company is specialized in the design and installation of environmental energy-saving engineering. Our products involve building materials, chemical industry, metallurgy, electric power, iron and steel, mining, casting and other fields. Our customers are all over the country, and our products are sold at home and abroad.In the fierce market competition, the company adheres to the principle of quality first and customer first, attracts customers with excellent product quality and wins customers with considerate and enthusiastic after-sales service.
選擇性催化還原(SCR)脫硝工藝選擇性催化劑還原法(SelectiveCatalyticReduction)簡(jiǎn)稱(chēng)SCR,指在一定的溫度和催化劑的作用下,以液氨或尿素作為還原劑,有選擇性地與煙氣中的氮氧化物反應(yīng)并生成無(wú)毒無(wú)污染的氮?dú)夂退?
水泥窯爐氨逃逸治理 產(chǎn)品信息

選擇性催化還原(SCR)脫硝工藝

選擇性催化劑還原法( Selective Catalytic Reduction)簡(jiǎn)稱(chēng)SCR,指在一定的溫度和催化劑的作用下,以液氨或尿素作為還原劑,有選擇性地與煙氣中的氮氧化物反應(yīng)并生成無(wú)毒無(wú)污染的氮?dú)夂退?。該技術(shù)可使用液氨或尿素為脫硝還原劑。

SCR脫硝工藝采用催化劑使氮氧化物發(fā)生還原反應(yīng),反應(yīng)溫度較低300~ 450°C 。其方法是將還原劑噴入裝有催化劑的反應(yīng)器內(nèi),煙氣通過(guò)催化劑與之產(chǎn)生化學(xué)反應(yīng)進(jìn)行脫硝。此工藝的脫硝效率可達(dá)90%以上,是國(guó)內(nèi)外電廠應(yīng)用較多,技術(shù)成熟的一種煙氣脫硝技術(shù)。

SCR脫硝工藝主要用于布置在燃煤和燃油電廠的固態(tài)排渣或者液態(tài)排渣鍋爐的煙氣下游。在一定溫度和有催化劑存在的情況下,向煙氣中通入作為還原劑的NH3或者尿素等,將煙氣中的NOx還原為無(wú)害的氮?dú)? N2 )和水( H2O ),從而達(dá)到脫除NOx、凈化煙氣和減少電廠污染物排放的目的,其主要化學(xué)反應(yīng)方程式如下:

4NO+4NH3+02→6H2O+4N2 NO+NO2+2NH3→3H20+2N26NO2+8NH3→7N2+12H20

以上反應(yīng)過(guò)程中同時(shí)伴隨以下副反應(yīng)的發(fā)生: 2S02+O2→2S03


SCR特點(diǎn)

脫硝效率高,能達(dá)到90%以上;

出口氨氣逃逸濃度低,達(dá)到國(guó)家標(biāo)準(zhǔn);SO2轉(zhuǎn)化為S03的轉(zhuǎn)化率較低,一般小于1%;

蜂窩狀或板式催化劑單元設(shè)計(jì),保證催化劑的有效表面積;特殊氣體均布裝置保證煙氣和還原劑均勻分布;達(dá)到很好的脫硝效率;反應(yīng)器可以布置省煤器和空預(yù)器之間,或脫硫塔之后;

提供氨水或者液NH3兩種可選方案,可滿足不同需要;系統(tǒng)阻力小,低于1000Pa;

適應(yīng)溫度范圍廣:160 ~ 510°C;成熟穩(wěn)定。


適用領(lǐng)域

SCR工藝主要用于燃煤發(fā)電鍋爐、熱電聯(lián)產(chǎn)鍋爐、集中供熱鍋爐、焚化爐、燒結(jié)機(jī)、球團(tuán)窯爐、焦化爐、玻璃窯爐、陶瓷窯爐等窯爐的煙氣脫硝


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