【正文】 sulfur content the higher the flotation efficiency of the higher Biodesulfurization In addition, through economic analysis, economic viability of the technology is very significant, very low running costs, removal of 1 kg of sulfur is less than yuan, with the technology, can further reduce operating costs. 2. Conclusion China, as coal power, coal desulfurization must be to develop prebustion desulfurization mainly to bustion of sulfur and the bustion flue gas desulfurization after the desulfurization technology for the add. At present, the actual situation in China, the shortterm prebustion desulfurization desulfurization will be mainly physical, but for less than mm reduced the fine coal desulfurization desulfurization of coal ash is still difficult to reelection and the flotation of coalbased washing the process of coal bustion is the largest predesulfurization and most economical way. As for now in terms of the key is to reduce the lower limit of particle size sorting, sorting to resolve the issue of ultrafine particles. Chemical and biological methods of desulfurization can be achieved deep desulfurization of coal, to be continued indepth study and development. FGD methods listed in this article is not exhaustive, but will enable the reader to the existing areas of research subjects have a general understanding, it must be recognized that these new methods is also faced with many problems. References [1] Li Rui. China, the distribution of sulfur in coal [J]. Clean Coal Technology, 1998 (4). [2] Cai Zhang, Jun Wu. Desulfuration evaluation and analysis of the effect [J]. Coal processing and utilization, 1995 (2). [3] GE Lingmei. Introduction to clean coal technology [M]. Beijing: Coal Industry Publishing House, 1997. [4] Pan Hin Lee. Flotation of high sulfur coal microbial feasibility study [M]. The State Environmental Protection Administration, 1998. [5] Lesheng, et al. The performance of FGD Gypsum and its application in the building materials industry [J]. Shandong Electric Power Technology, 2000 (5).煤炭燃前脫硫技術(shù)摘要介紹了煤炭燃前脫硫技術(shù)現(xiàn)狀，闡明了各種技術(shù)的應用原理和目前的應用情況，分析了各種技術(shù)的優(yōu)缺點，并提出了煤炭脫硫的發(fā)展方向。 chloride solution, also known as JPL law, the role of the chloride, the sulfur iron can be oxidized to ferric chloride and sulfate, organic sulfur may be oxidized to sulfonic acid or sulfuric acid. (3) solvent FGD. There are melting alkali, organic solvent extraction and supercritical fluid extraction 3. Molten alkali is carried out by melt desulfurization alkali, melting with alkaline minerals in coal, organic sulfur to form soluble substances, resulting in purification of coal, or coal can be ultrapurification。 Meyers law, the law is the use of Fe2(SO4)3 in 3valent iron oxidation of pyrite into the soluble FeSO4, of organic sulfur does not work。 bustion desulfurization refers to the lowpollution bustion, coal and fluidized bed bustion technology。參考文獻[1]　曾東瑜，陳凡植，郭潔茹，[J].廣東電力， 2004， (1): 10~13.[2]　[J].節(jié)能與環(huán)保， 2005， (5): 6.[3]　“十一五”規(guī)劃[EB/OL].[200801 18] : //. sepa. gov. /plan/hjgh/sywgh/gjsywgh/200801 /t20080118_116458. htm.[4]　“十五”計劃指標完成情況分析[EB/OL]. [20060412]: //. sepa. gov. /xcjy/zwhb/00604 /t20060412_75714. htm.[5]　成峰，任建勛，[Ｊ].煤炭技術(shù)，2004，23(3):8384.[6]　劉　利，程養(yǎng)學，喻文熙，[J].能源環(huán)境保護， 2006， (4): 1~5.[7]　曾華庭，楊華，馬斌，[M].北京:中國電力出版社，2004:89，274277.[8]　郝吉明，[M].北京:化學工業(yè)出版社，2001:1012.[9]　吳俊芬，[ J].能源工程，2006， (3): 44~47.[10]　[ J].貴州化工，2005， (2): 33~36.[11]　周玉新，[J].化學工程師， 2007， (10): 38.[12]　[ J].山西電力， 2006，(4): 63~65.[13]　周玉新，[J].化學工程師， 2007， (10): 38.[14]　張　方，馬彥濤，[J].粉煤灰綜合利用， 2003， (4): 50~51.[15]　南京工業(yè)大學黨委辦公室.“LIFAC粉煤灰在水泥混凝土中的應用研究暨粉煤灰產(chǎn)品企業(yè)標準”項目通過鑒定[EB/OL]. [20080112]: //db. njut. edu. /eachview. asp?tb=infoamp。在此真誠的感謝老師，用我平淡的語言表答我真誠的謝意。論文中我學到的或許是一個很單方面的知識，但是生活中我學到的是如何構(gòu)建自己的人生方向，用什么樣的態(tài)度面對自己的生活。謝 辭真誠的感謝老師，從論文的起稿是不知道從何下手到現(xiàn)在論文的全面完成老師的幫助對我起到了至關(guān)重要的作用，老師的指導給我寫作的方向，老師的指導讓我快速的構(gòu)思文章框架，老師的指導更讓我對做學問的態(tài)度和嚴謹有了更深的認識。煤炭脫硫工藝在不斷成熟的同時也會更多的走進火電廠。要推動火電廠煙氣脫硫工作的全面實施，促進火電廠煙氣脫硫產(chǎn)業(yè)的健康發(fā)展，應用國家政策積極推行有利于SO2治理的經(jīng)濟和產(chǎn)業(yè)發(fā)展政策，才能進一步提高企業(yè)實施煙氣脫硫的積極性，促進脫硫產(chǎn)業(yè)的健康發(fā)展，從根本上促進我國電力、環(huán)境保護和經(jīng)濟的協(xié)調(diào)發(fā)展。9洛陽理工學院畢業(yè)設(shè)計（論文）第3章火電廠煤炭脫硫工藝在未來的發(fā)展局勢據(jù)中國行業(yè)研究網(wǎng)發(fā)布的《2008年中國電力環(huán)保行業(yè)研究咨詢報告》[17]， 2008~2010年，國內(nèi)將陸續(xù)有2億千瓦以上燃煤機組需要安裝脫硫設(shè)施，“十一五期間，國家將進一步推進脫硫產(chǎn)業(yè)化發(fā)展步伐[18]。近幾年最新發(fā)展的脫硫廢水處理工藝有：①流化床法，用于去除廢水中的重金屬；②化學沉淀—微濾膜法，對化學沉淀后的脫硫廢水進行濃度處理[16]。濕法煙氣脫硫會產(chǎn)生一定量的脫硫廢水，需了解脫硫廢水的水質(zhì)特性，針對其特點研究合適的脫硫廢水處理技術(shù)。2001年，南京工業(yè)大學在國內(nèi)外首次對LIFAC粉煤灰的化學和礦物等特性進行了系統(tǒng)的研究，對其中游離氧化鈣的作用進行了較為深入的探討，確定了相關(guān)的控制指標。對脫硫灰渣進行綜合利用時，要根據(jù)脫硫灰渣的主要成分選擇最適合的途徑。煙氣脫硫石膏作為工業(yè)副產(chǎn)品，具有純度高、不易破碎、價格低廉等特點，且其品質(zhì)和細度均優(yōu)于天然石膏，不宜作廢物處理。 脫硫石膏及鈣型產(chǎn)物煙氣脫硫石膏和天然石膏主要成分都是二水硫酸鈣晶體(CaSO4煙氣脫硫技術(shù)按脫硫產(chǎn)物的處理方法可分為拋棄法和回收法。目前循環(huán)流化床煙氣脫硫工藝只在中小規(guī)模電廠鍋爐上得到應用，尚缺乏大型化的應用業(yè)績[13]。此工藝在國外目前應用在10~20萬千瓦等級機組。此工藝所產(chǎn)生的副產(chǎn)物呈干粉狀，其化學成分與噴霧干燥法脫硫工藝類似，主要由飛灰、CaSOCaSO4和未反應完的吸收劑Ca(OH)2等組成，適合作廢礦井回填、道路基礎(chǔ)等。吸收塔底部為一個文丘里裝置，煙氣流經(jīng)文丘里管后速度加快，并在此與很細的吸收劑粉末互相混合，顆粒之間、氣體與顆粒之間劇烈摩擦，形成流化床，在噴入均勻水霧降低煙溫的條件下，吸收劑與煙氣中的二氧化硫反應生成CaSO３ 和CaSO４。該工藝一般采用干態(tài)的消石灰粉作為吸收劑，也可采用其它對二氧化硫有吸收反應能力的干粉或漿液作為吸收劑。3. 煙氣循環(huán)流化床脫硫