本文選題：鈉—鈣雙堿法 + 濕法煙氣脫硫�。� 參考：《河南科技大學》2017年碩士論文

【摘要】：伴隨我國經濟水平的迅速提升,降低因能源消耗而引起的環(huán)境污染,特別是降低因燃煤而引起的二氧化硫污染,已變成推動和諧社會建設以及保持經濟持續(xù)發(fā)展的急切需要。然而,煙氣脫硫過程中始終被部分問題所困擾,那就是使用最為普遍的石灰石一石膏濕法煙氣脫硫系統(tǒng)的投資維護費高。這在一定程度上阻礙了煙氣脫硫工程在火電廠的應用。近年來,受霧霾的影響,國家對環(huán)保愈發(fā)重視,同時也對二氧化硫排放標準修訂更加嚴苛,優(yōu)化二氧化硫控制技術,尋找合適的吸收劑,以及改善設備等已經成為行業(yè)迫切需要解決的關鍵問題。本文立足于對國內外煙氣脫硫技術特點、工藝原理以及工程應用的詳細介紹,著重對Na-Ca雙堿法濕法煙氣脫硫技術展開實驗設計和研究,并圍繞增加Na-Ca雙堿法煙氣脫硫效率,減小維護投入等諸多問題,以天津金耀生物科技有限公司4×35t/h工業(yè)鍋爐工程建設為案例,開展了濕法煙氣脫硫工藝技術的研究。綜上所述,本文工作主要集中在以下三個方面:(1)排放技術方案對比研究。實現(xiàn)工業(yè)煙氣超低排放要求,行業(yè)內有兩種技術路線:煙氣協(xié)同控制技術和末端治理技術。文中對此兩種技術路線適應的工況以及優(yōu)缺點進行了詳細的對比介紹。(2)雙堿法超低排放的技術研究。介紹了雙堿法脫硫工藝的產生及優(yōu)缺點,并對影響脫硫效率的因素進行了研究,得出如何控制脫硫因素才能實現(xiàn)超低排放。(3)雙堿法脫硫技術在實際工程中的應用與分析。結合實際工程案例,對運行效果進行分析。最后對全文總結,提出自己的創(chuàng)新點和考慮不足的地方。
[Abstract]:With the rapid improvement of economic level in China, reducing environmental pollution caused by energy consumption, especially sulfur dioxide pollution caused by coal combustion, has become an urgent need to promote the construction of a harmonious society and to maintain sustainable economic development. However, in the process of flue gas desulfurization (FGD), part of the problems are always troubled, that is, the most popular limestone gypsum wet flue gas desulphurization system investment and maintenance costs are high. To some extent, the application of flue gas desulfurization project in thermal power plant is hindered. In recent years, under the influence of smog, the country has paid more attention to environmental protection, and at the same time, it has also made the revision of sulfur dioxide emission standards more stringent. It has optimized the sulfur dioxide control technology and looked for suitable absorbents. And improve the equipment and so on has become the industry urgent need to solve the key problem. Based on the detailed introduction of the technical characteristics, technological principles and engineering applications of flue gas desulfurization at home and abroad, this paper focuses on the experimental design and research of the Na-Ca double alkali wet flue gas desulfurization technology, and focuses on increasing the efficiency of Na-Ca double alkali flue gas desulfurization. In order to reduce the maintenance cost and other problems, a case study on wet flue gas desulphurization (FGD) technology was carried out in Tianjin Jinyao Biological Technology Co., Ltd. (4 脳 35t/h) industrial boiler engineering construction. To sum up, this paper mainly focuses on the following three aspects: 1) the comparative study of emission technology. In order to meet the requirement of ultra-low emission of industrial flue gas, there are two technical routes in the industry: the technology of flue gas cooperative control and the technology of terminal control. In this paper, the operating conditions, advantages and disadvantages of these two technical routes are compared and introduced in detail, and the technical research of ultra-low emission by double alkali process is introduced in detail. This paper introduces the production, advantages and disadvantages of double alkali desulphurization process, and studies the factors influencing the desulfurization efficiency. It concludes how to control the desulfurization factors to realize the ultra-low discharge. (3) the application and analysis of double alkali desulfurization technology in practical engineering. Combined with practical engineering cases, the operation effect is analyzed. Finally, the paper summarizes the full text, puts forward their own innovation and inadequate consideration.
【學位授予單位】：河南科技大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：X701.3

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