.52 北京科技大学学报 2007年增刊2 (3)除尘灰F含有有效脱硫成分Ca0、Mg0等 Ind Eng Chem Res,1992.31(4):1130 碱金属氧化物达50%以上,作为Ca(0H)2的添加 [9]Davini P.Investigation of flue gas desulphurizati-on by fly ash and 剂时钙利用率为22.3%,高于纯Ca(0H)2脱硫的 calcium hydroxide mixtures.Resour Conserv Recycl,1995.15: 193 钙利用率.除尘灰F与Ca(OH)2混合焙烧时利用 [10]赵毅,赵建海,马双沈,等.高活性吸收剂去除二氧化疏的实 率提高到40.2%. 验研究.华北电力大学学报,2001,28(1):72 (4)除尘灰A中Fe2O3和Fe0含量高,作为添 [11】胡将军,刘慧龙,邓德明,等.高效干法脱硫剂的研究·大气 加剂与Ca(OH)2直接混合时,钙利用率只有 污染防治,1999,25(3):1 [12]Tomohiro I,Takashizuka Y:Takeshi M.Effect of calcium sul- 10.8%,但混合焙烧后,钙利用率提高到70.2%,脱 fate addition on the activity of the absorbent for dry flue gas 硫率在95%以上的持续时间从11min延长到31 desulfurization.Energy Fuels,2001.15:436 min,脱硫率在60%以上的持续时间从13.5min延 [13]Ferndndez J.Renedo M J.Pesquera A.Irabien J A.Effect of 长到35min·这可能是焙烧过程中,Fe203与Ca CaS4 on the structure and use of Ca (OH)2/fly ash sorbents for (0H)2反应生成了一种复合金属氧化物,并优化了 SO2 removal.Powder Technol,2001,119:201 脱硫剂的孔隙,从而提高了反应速度和钙利用率. [14]Tsuehiai H.Ishizuka T.Ueno T.Highly active absorbent for SO2 removal prepared from coal fly ash.Ind Eng Chem Res. 参考文献 1995,34(4):1404 [15]尹仕吉.脱硫剂的研究.电力环保研究,1996(3):49 []张承中,党筱风,严秉勤.循环流化床绕结烟气脱疏热态模拟 实验研究.西安建筑科技大学学报,1997,29(3):349 [16]Ueno T.Process for preparing desulfurizing and denitrating a- gents,US.4629721,1986 [2]李希超.日本烧结环保的技术的新发展,烧结球团,1994(6): 18 [17]Ali A S.Hitoki M.Hasatani M.Comparative reactivity of Ca [3]付颖,钱枫,周芸芸。燃煤飞灰制备脱硫剂的实验研究·环境 (OH)2derived oxides for SOz removal.J Chem Eng Jpn.1994. 27(5):650 科学与技术,2006,29(8):91 [18]黄学敏,马广大,干法烟气脱硫用高效粒状脱硫剂的研究. [4]宗润宽,苏艳霞,胡金榜.钙基烟气脱硫剂的生产研究进展. 技术进展,2001,12:12 西安建筑科技大学学报,2000,32(3):245 [19]张佩芳,黄学敏.含氧化铁粉粒状脱硫剂的脱硫性能研究 [5]宗润宽,苏艳霞,田天.钙基烟气脱硫剂制备的实验研究.环 西安建筑科技大学学报,2004,36(2):163 境污染治理技术与设备,2001,2(2):25 [20]刘煜,孟令县.多孔氧化钙孔结构特征的数学描述与分析 [6]Liu C F,Shih S M Lin R B.Kinetics of the reaction of Ca 中国电机工程学报,2002,22(7):145 (OH)2/fly ash sorbent with S02 at low temperatures.Chem Eng [21]赵毅,马双忧,李燕中,等,利用粉煤灰吸收剂对烟气脱硫脱 Sci,2002,57:93 [7]Peterson J R.Rochelle G T.Aqucous reaction of fly ash and cal- 氮的实验研究.中国电机工程学报,2002,22(3):108 [22]傅国光,彭晓峰,颜岩.水合煅烧改性Ca0孔隙的实验分析 cium hydroxide to produce calcium silicate absorbent for flue gas 热科学与技术,2003,2(3):240 desulfurization.Environ Sci Technol.1988.22(11):1299 [23]陈鸿伟,吉云,崔晓刚。钙基脱硫剂煅烧特性的研究.华东电 [8]Ho C S.Shih S M.Ca(OH)2/fly ash sorbents for SOz removal. 力,2004,32(4):14 Preparation of highly effective desulfurizer using various dusts as additives WANG Li,LV Chunxiang,SONG Cunyi,LI Zifu Civil and Environmental Engineering School,University of Science and Technology Beijing.Beijing 100083.China ABSTRACT Ca(OH)2 and seven kinds of dust from the iron and steel enterprise were used to produce desulfur- izers through different methods.These desulfurizers were tested in a fluidized bed reactor in the laboratory.Du- ration of over 950 desulfurization efficiency and the calcium utilization ratio were measured for different desulfu- rizers.The experimental results showed that the desulfurizer in which the Ca(OH)2 and dust A (as additive) were mixed and then baked at a high temperature,could effectively improve desulfurization efficiency.The cal- cium utilization ratio could be increased from 18.2%to 70.2%and duration of over 95%desulfurization effi- ciency could be kept from 11 to 31min.It proved that the desulfurizer produced by the above mentioned method could efficiently improve the calcium utilization ratio.This demonstrates that the practical utilization of this desulfurizer for sintering gas desulfurization has great potential. KEY WORDS sintering gas desulfurization:desulfurizer:dust;calcium utilization ratio(3) 除尘灰 F 含有有效脱硫成分 CaO、MgO 等 碱金属氧化物达50%以上作为 Ca(OH)2 的添加 剂时钙利用率为22∙3%高于纯 Ca(OH)2 脱硫的 钙利用率.除尘灰 F 与 Ca(OH)2 混合焙烧时利用 率提高到40∙2%. (4) 除尘灰 A 中 Fe2O3 和 FeO 含量高作为添 加剂 与 Ca (OH)2 直 接 混 合 时钙 利 用 率 只 有 10∙8%但混合焙烧后钙利用率提高到70∙2%脱 硫率在95%以上的持续时间从11min 延长到31 min脱硫率在60%以上的持续时间从13∙5min 延 长到35min.这可能是焙烧过程中Fe2O3 与 Ca (OH)2 反应生成了一种复合金属氧化物并优化了 脱硫剂的孔隙从而提高了反应速度和钙利用率. 参 考 文 献 [1] 张承中党筱凤严秉勤.循环流化床烧结烟气脱硫热态模拟 实验研究.西安建筑科技大学学报199729(3):349 [2] 李希超.日本烧结环保的技术的新发展.烧结球团1994(6): 18 [3] 付颖钱枫周芸芸.燃煤飞灰制备脱硫剂的实验研究.环境 科学与技术200629(8):91 [4] 宗润宽苏艳霞胡金榜.钙基烟气脱硫剂的生产研究进展. 技术进展200112:12 [5] 宗润宽苏艳霞田天.钙基烟气脱硫剂制备的实验研究.环 境污染治理技术与设备20012(2):25 [6] Liu C FShih S M Lin R B.Kinetics of the reaction of Ca (OH)2/fly ash sorbent with SO2at low temperatures.Chem Eng Sci200257:93 [7] Peterson J RRochelle G T.Aqueous reaction of fly ash and calcium hydroxide to produce calcium silicate absorbent for flue gas desulfurizationEnviron Sci Technol198822(11):1299 [8] Ho C SShih S M.Ca(OH)2/fly ash sorbents for SO2 removal. Ind Eng Chem Res199231(4):1130 [9] Davini P.Investigation of flue gas desulphurizat-i on by fly ash and calcium hydroxide mixtures.Resour Conserv Recycl199515: 193 [10] 赵毅赵建海马双沈等.高活性吸收剂去除二氧化硫的实 验研究.华北电力大学学报200128(1):72 [11] 胡将军刘慧龙邓德明等.高效干法脱硫剂的研究.大气 污染防治199925(3):1 [12] Tomohiro ITakashizuka YTakeshi M.Effect of calcium sulfate addition on the activity of the absorbent for dry flue gas desulfurization.Energy Fuels200115:436 [13] Fernández JRenedo M JPesquera AIrabien J A.Effect of CaSO4on the structure and use of Ca (OH)2/fly ash sorbents for SO2removal.Powder Technol2001119:201 [14] Tsuehiai HIshizuka TUeno T.Highly active absorbent for SO2removal prepared from coal fly ash.Ind Eng Chem Res 199534(4):1404 [15] 尹仕吉.脱硫剂的研究.电力环保研究1996(3):49 [16] Ueno T.Process for preparing desulfurizing and denitrating agents.US.46297211986 [17] Ali A SHitoki MHasatani M.Comparative reactivity of Ca (OH)2derived oxides for SO2removal.J Chem Eng Jpn1994 27(5):650 [18] 黄学敏马广大.干法烟气脱硫用高效粒状脱硫剂的研究. 西安建筑科技大学学报200032(3):245 [19] 张佩芳黄学敏.含氧化铁粉粒状脱硫剂的脱硫性能研究. 西安建筑科技大学学报200436(2):163 [20] 刘煜孟令县.多孔氧化钙孔结构特征的数学描述与分析. 中国电机工程学报200222(7):145 [21] 赵毅马双忱李燕中等.利用粉煤灰吸收剂对烟气脱硫脱 氮的实验研究.中国电机工程学报200222(3):108 [22] 傅国光彭晓峰颜岩.水合煅烧改性 CaO 孔隙的实验分析. 热科学与技术20032(3):240 [23] 陈鸿伟吉云崔晓刚.钙基脱硫剂煅烧特性的研究.华东电 力200432(4):14 Preparation of highly effective desulfurizer using various dusts as additives WA NG L iLV ChunxiangSONG CunyiLI Zif u Civil and Environmental Engineering SchoolUniversity of Science and Technology BeijingBeijing100083China ABSTRACT Ca(OH)2and seven kinds of dust from the iron and steel enterprise were used to produce desulfurizers through different methods.These desulfurizers were tested in a fluidized bed reactor in the laboratory.Duration of over95% desulfurization efficiency and the calcium utilization ratio were measured for different desulfurizers.The experimental results showed that the desulfurizer in which the Ca(OH)2 and dust A (as additive) were mixed and then baked at a high temperaturecould effectively improve desulfurization efficiency.The calcium utilization ratio could be increased from 18∙2% to 70∙2% and duration of over 95% desulfurization efficiency could be kept from11to31min.It proved that the desulfurizer produced by the above-mentioned method could efficiently improve the calcium utilization ratio.This demonstrates that the practical utilization of this desulfurizer for sintering gas desulfurization has great potential. KEY WORDS sintering gas desulfurization;desulfurizer;dust;calcium utilization ratio ·52· 北 京 科 技 大 学 学 报 2007年 增刊2