氨法脫硫監(jiān)測系統(tǒng)的設(shè)計(jì)及脫硝問題的研究.pdf

1、華北電力大學(xué)（北京）碩士學(xué)位論文氨法脫硫監(jiān)測系統(tǒng)的設(shè)計(jì)及脫硝問題的研究姓名：劉月生申請學(xué)位級別：碩士專業(yè)：熱能工程指導(dǎo)教師：李文彥20060301華北電力大學(xué)碩士學(xué)位論文捅要大型電站鍋爐中，石灰石一石膏法脫硫技術(shù)應(yīng)用廣泛，也存在著一些問題。氨法脫硫效率高，兼具定的脫硝功能。石化企業(yè)中，大量的中小鍋爐面臨著煙氣治理問題，義有氨水做脫硫劑，副產(chǎn)品價值高。氨法脫硫工藝，具有良好的應(yīng)用前景。本文借鑒了關(guān)于NO、吸收的試驗(yàn)及理論研究的相關(guān)成果，分

2、析了氨法脫硫工藝系統(tǒng)中，水、堿、以及一些具有還原性的鹽溶液對煙氣中NOx的吸收情況。為監(jiān)測氨法脫硫工藝系統(tǒng)對氮氧化物的吸收情況，本文設(shè)計(jì)了一套煙氣連續(xù)排放監(jiān)測系統(tǒng)(CEMS)和脫硫運(yùn)行控制系統(tǒng)，并應(yīng)用于‘臺小容量鍋爐的氨法脫硫工程中。通過對大量數(shù)掘的篩選分析，研究氮氧化物的吸收情況，并用便攜式分析儀對監(jiān)測數(shù)掘進(jìn)行了標(biāo)校。分析表明氨法脫硫系統(tǒng)有明顯的脫硝效率；氨法脫硫系統(tǒng)循環(huán)液PH值在5T5～6。5范圍內(nèi)，脫硝效果比較好：液氣比增大，脫硝

3、效率也隨之增大。本課題的研究，為中石油氫法脫硫工藝系統(tǒng)的開發(fā)，作出了貢獻(xiàn)，具有一定的實(shí)際應(yīng)用價值。關(guān)鍵詞：脫硝，氨氧化物，循環(huán)經(jīng)濟(jì)，氨法脫硫工藝，連續(xù)排放監(jiān)測系統(tǒng)ABSTRACTLimegypsumdesulfttrizationisapplieddiffuselyinthelargesizeofpowerplantsbutitalsoappearsalotofquestionsTheAmmoniaProcesshasalargedes

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