CAJ | 학술논문

NOx是世界上主要的大气污染物之一，随着火电行业的不断发展，我国NOx的排放量不断增加。对此，我国陆续出台一系列指标，严格控制NOx的排放。NOx控制技术较多，其中，SCR技术最为成熟、应用范围最广，具有处理效率高、反应温度低、运行可靠等优点。SCR工艺计算中，关键工艺计算主要包括脱硝效率、还原剂消耗量、稀释风量、催化剂体积和SCR反应器尺寸。本文简要介绍了SCR的工作原理，并以乌鲁木齐市某热电厂为例，详细介绍SCR关键工艺的计算方法。
NOx시세계상주요적대기오염물지일，수착화전행업적불단발전，아국NOx적배방량불단증가。대차，아국륙속출태일계렬지표，엄격공제NOx적배방。NOx공제기술교다，기중，SCR기술최위성숙、응용범위최엄，구유처리효솔고、반응온도저、운행가고등우점。SCR공예계산중，관건공예계산주요포괄탈초효솔、환원제소모량、희석풍량、최화제체적화SCR반응기척촌。본문간요개소료SCR적공작원리，병이오로목제시모열전엄위례，상세개소SCR관건공예적계산방법。
NOx is one of the main air pollutants in the world. With the development of Power Industry in China, emission of NOx becomes more and more serious, for which, a series of documents have been issued to restrict the emission of NOx. Up to now, a lot of denitration technologies have been developed, among which, SCR is the most mature and widely used process due to its high efficiency, low operation temperature and reliability. During the design of SCR, several key points must be calculated, including denitration efficiency, consumption of reductant, volume of dilution air, catalyst volume and size of SCR reactor. In this paper, the principle of SCR is briefly introduced. Meanwhile, using a petrochemical plant in Urumchi as an example, the calculation methods for SCR is detailedly described.