用户名: 密码: 验证码:
有机钙同时脱硫脱硝的机理研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
燃煤锅炉排放出的SO_2和NO_x严重危害生态平衡,脱硫脱硝成为污染物治理的必然趋势。本文通过大量机理试验和半工业试验,系统研究有机钙的脱硫脱硝特性。
     有机钙煅烧析出大量有机气体,热力平衡计算显示,有机气体高温下热解生成以CH_4、CO、H_2为主的强还原性物质。氮吸附试验表明,有机钙高温煅烧后,其孔隙丰富,具有较大的比表面积,高温烧结程度轻。有机钙析出有机气体快于煤样析出挥发份。添加有机钙后,煤粉燃烧过程中挥发份析出时间提前,煤粉易于着火,燃烧稳定,整体燃烧性能优于原煤。其中,醋酸钙镁的助燃效果最好。
     燃烧初期,煤中部分硫与煤中钙、铁等结合,以FeS和CaS等金属硫化物的形式存在。而在添加钙基后,燃烧初期,煤中硫主要以CaS的形式存在。CaS的生成以及随后的氧化,造成燃烧过程硫析出曲线变化。热力平衡计算预测了燃烧过程中含硫物相的分布,气氛决定了FeS、CaS、H_2S等含硫物相的分布规律。CaS按两个平行反应进行氧化,生成CaO和CaSO_4,温度、氧气浓度、产物层扩散阻力决定了氧化反应的进程。煤焦燃烧过程CaS向CaSO_4的转化率远远高于热天平实验上的转化率。
     定碳炉试验表明,普通CaO对NO的生成和分解都有微弱的催化还原效果,而有机钙析出的有机气体在燃烧初期可以直接还原NO。贫氧环境有利于获得较高的脱硝率,随温度升高醋酸钙镁的脱硝率增大,而醋酸钙在1150℃下表现出最好的脱硝效果。
     一维沉降炉有机钙脱硫脱硝试验表明,温度是影响有机钙同时脱硫脱硝效果的重要因素。1200℃,过量空气系数为1.0工况下醋酸钙镁获得最大脱硝率57.78%;在1100℃,过量空气系数为1.6的工况下醋酸钙镁获得最大脱硫率73.1%。有机钙中醋酸钙镁表现出最佳的脱硫脱硝效果。低过量空气系数可以提高有机钙的脱硝效果,而高过量空气系数可以提高有机钙的脱硫效果。
     同时考虑碳氢化合物、含氮气体、含硫气体的相互反应,采用Chemkin模拟燃料型NO的生成、SO_2与NO的相互反应机理、丙酮还原NO机理。模型计算结果表明:自由基在燃料型NO生成过程中起决定性作用;贫氧条件下SO_2的加入,抑制了燃料型NO的生成;在一维炉沿程,SN和SH等含硫物相促进了NO的分解,明显降低NO的浓度;丙酮快速分解生成大量的CH_2CO,CH_2CO继续分解为H、HO_2、HCCO等物质,这些物质直接和NO反应,降低NO浓度。
The combustion of coal generate of SO_2 and NO_X emissions, which pollute entironment badly. It is significantly important for Simultaneous reduction of NO_X and SO_2 emissions. In this article,the mechanism of pollutions control with organic calcium was discussed in detail with large amounts of theory analysis and experimentl test.
    Organic gas released during calcinations of organic calcium and the calculation of thermodynamic equilibrium found that the pyrolysis productions of organic gas were reducing gas such as CH_4,CO,H_2. Organic calcium developed a high porous cenospheric structure during its calcinations at high temperature. The surface area of the particle, measured by N_2 physisorption, was more biger than common calcium. As the organic gas released more first than volatile during combustion of coal, Organic calcium promote the ignition property of coal , improved whole combustion characteristics. Calcium magnesium acetate was the best additive as for the combustion-supporting character.
    Sulphur combined with Fe,Ca into FeS and CaS during initial period of combustion. CaS was the chief form after calcium addition . The change of SO_2 emission could be explained by the formation and oxidation of CaS at different period . Calculation of thermodynamic equilibrium forecasted the distribution of sulphur during combustion and it contribute the difference in distribution of species contained sulphur to atmosphere. The oxidation mechanism of CaS could be explained by Parallelism between the oxidation reaction of calcium sulphide and that of cailcium sulphite. Temperature,Concentraton of oxygen and diffusion resistance of product layer were dominant factors during the oxidation of CaS. The conversion of CaS to CaSO_4 during combustion with Char was greater than that of thermogravimetric experiment.
    Common calcium had weakly catalytic effect on the production and reduction of NO, which was proved by experiments in fixed-bed .However, organic calcium could reduce NO effectively by organic gas . NO control was best performed in poor oxygen. As for calcium magnesium acetate, the reduction efficency of NO increased with increasing temperarue, but for Calcium acetate the best reduction efficency of NO was achieved at 1150℃.
    Experiments were carried out to investigate the mechanism of simultaneous
引文
[1] 国家环境保护总局,“中国环境状况公报,”(1998~2004).
    [2] 王志轩,“中国电力工业的发展及火电厂氮氧化物排放控制现状及对策,”2005.
    [3] 国家环境保护总局and国家质量监督检验检疫总局,中华人民共和国国家标准-火电厂大气污染物排放标准GB13223-2003,2003.
    [4] 王智化,“燃煤多种污染物一体化协同脱除机理及反应射流直接数值模拟DNS的研究,”in机械与能源工程学院,vol.博士学位论文.杭州:浙江大学,2005,pp.3.
    [5] 郝吉明,王书肖,and 陆永琪,燃煤二氧化硫控制技术手册.北京:化学工业出版社,2001.
    [6] 刘建忠,周俊虎,程军,曹欣玉,赵翔,and岑可法,”燃煤炉预混—喷钙二段脱硫技术研 究 ”中国电机工程学报,vol.23,pp.153-157,2003.
    [7] 李宁,“煤高温燃烧过程中脱硫反应机理的研究及其工业性应用,”vol.博士学位论文:浙江大学,2000,pp.2.
    [8] 程军,“炉内高温燃烧两段脱硫的机理研究,”in热能工程研究所,vol.博士学位论文.杭州:浙江大学,2002.
    [9] 杨天华,“煤燃烧脱硫过程中高温物相固硫基础研究,”in机械与能源学院,vol.博士学位论文.杭州:浙江大学,2004.
    [10] 范宏宇,“不同气氛下高温固硫产物硫酸钙和硫化钙相互转化机理研究,”in机械与能源学院,vol.博士学位论文.杭州:浙江大学,2004.
    [11] S. H, GreulU, and R. H, "Basic effect on NO x emissionsd in air staging and reburning at a bench-scale test facility, " Fuel, vol. 75, pp. 560—568, 1996.
    [12] 钟秦,燃煤烟气脱硫脱硝技术及工程实例.北京:化学工业出版社,2002.
    [13] L. Smoot, S. Hill, and H. Xu, "NOx Control Through Reburning, " Progress in Energy and Combustion Science, vol. 24, pp. 385-408, 1998.
    [14] 宣小平,姚强,乐长涛,and李术元,”选择性催化还原脱硝研究进展,”煤炭转化,vol.25,pp.26-31,2002.
    [15] B. H and J. F. J, "Catalytic Reduction of Nitrogen Oxides: A Review onthe Fundamentals and Technology, " Catalysis Today, pp, 369, 1998.
    [16] B. Moo and F. Chin, "Low temperature SNCR process for NOx control " The Science of the Total Environment, vol. 198, pp. 73-78, 1997.
    [17] 王智化,周昊,周俊虎,and樊建人,”不同温度下炉内喷射氨水脱除NOx的模拟与试验研究,”vol.32,pp.48-52,2004.
    [18] 钟秦,“选择性非催化还原法脱除NOx的实验研究”南京理工大学学报,vol.24,pp.68-71,2000.
    [19] T. O and S. N, "Radiation chemical reactions in NOx and SO2 removals from flue gas, " Radiat. Phys. Chem, vol. 24, pp. 145~165, 1990.
    [20] Y.H. Song, "An industrial experiment of pulse corona process for removal SO2 and NOx from combustion flue gas, " J. Adv. Oxid.Technol, vol. 2, pp. 268, 1997.
    [21] J.S. Chang, "Simultaneous removal of NOx and SO2 from coal boiler flue gas by DC corona discharge ammonia radical shower systems: pilot plant tests" J. Electrostatics, vol. 57, pp. 313~323, 2003.
    [22] R. G. Mcinnes, "Explore new options for hazardous air pollutant control, " Chem. Eng. Prog, vol. 91, pp. 36~47, 1995.
    [23] M. Isao, K. Yozo, and S. Masuaki, "Removal of SOx and NOx over activated carbon fibers, " Carbon, vol. 38, pp. 227~239, 2000.
    [24] K.OKAZAI and T.ANDO, "NOx Reduction mechanism in coal combustion with recycled CO2, " Energy, vol. 22, pp. 207-215, 1997.
    [25] H. Liu, S. Karagiri, and K. Okazaki, "drasitc SOx removal and influences of various factors in O2/CO2 pulverized coal combustion system, " Energy &Fuels, vol. 15, pp. 403, 2001.
    [26] H. Liu, S. Karagiri, and K. Okazaki, "decomposition behavior and mechanism of calcium sulfate under the condition of O2/CO2 pulverized coal combustion, " Chem.Eng.Comm, vol. 187, pp. 199-214, 2001.
    [27] Y.Hu, S.Natio, N.Kobayashi, and M.Hasatani, "CO2, NOx and SO2 emissions from the combustion of coal with high oxygen concentration gases, " Fuel, vol. 79, pp. 1925-1932, 2000.
    [28] H.Liu, S.Katagiri, U.Kaneko, and K.OKAZAI, "Sulfation behavior of limestone under high CO2 concentration in O2/CO2 coal combustion, " Fuel, vol. 79, pp. 945-953, 2000.
    [29] 姚洪,周建平,范耀国,and徐涛,“炉内喷钙脱硫实验研究”热能动力工程,vol.12,pp.424-428,1997.
    [30] 王正华,周昊,池作和,and蒋啸,“炉内喷钙脱硫对锅炉运行的影响”锅炉技术,vol.34,pp.76-80,2003.
    [31] 周建平,姚洪,徐涛,and刘一兵,“炉内喷钙脱硫对SO2和NOx排放的影响”热力发电,pp.4-8,1998.
    [32] 王正华,周昊,杜黎龙,and翁安心,”炉内喷钙对SO2和NOx排放的影响研究”电站系统工程,vol.18,pp.42-44,2002.
    [33] F. R.Steward, M.Couturier, and K.Morris, "Firing coal and limestone in a low-NOx burner, to reduce SO2 emissions, " Journal of the institute of Energy vol. 65, pp. 177-184, 1992.
    [34] G. B. K, "sorbent/urea slurry injection for simultaneous SO2/NOx removal, " Environ. prog, vol. 11, pp. 155-162, 1992.
    [35] H.R.M, "combined dry SO2/NOx control with lime-urea hydrate " presented at 1990 SO2 control symposium, New Orleans, Louisiana, 1990.
    [36] 钟秦,“以干吸着剂喷射法同时脱除SO2和NO的实验研究,”重庆环境科学,vol.17,pp.17-21,1995.
    [37] Atal. A, Steciak.J, and Levendis.Y.A, "Combustion and SO2-NOx emissions of bituminous coal particles treated with calcium acetate, " Fuel, vol. 74, pp. 495-506, 1995.
    [38] H.D. H and S. H. Y, presented at TMS Annual Meeting EPD Congress Proceedings of the 1998, San Antonio, TX, USA, 1998.
    [39] J. Steciak, Y. A. Levendis, and D. L. Wise, "Effectiveness Of calcium magnesium acetate as dual SO2-NOx emission Control Agent, " AICHE J, vol. 41, pp. 712, 1995.
    [40] O. Y and A. K, Resources, Conservation and Recycling, vol. 7, pp. 69~82, 1992.
    [41] J.I. Shuckerow, J. A. Steciak, and D. L.Wise, "Control of air toxin particulate and vapor emissions after coal combustion utilizing calcium magnesium acetate, " Resources, Conservation and Recycling vol. 16, pp. 15-69, 1996.
    [42] J.Adanez, F.Garcia-Labiano, and L. F. Diego, "Utilization of calcium acetate and calcium magnesium acetate for H2S removal in coal gas cleaning at high temperatures, " Energy &Fuels, vol. 13, pp. 440-448, 1999.
    [43] B. Shemwell, Y. A.Levendis, and G A.Simons, "Laboratory study on the high-temperature capture of HCl gas by dry-injection of calcium-based sorbents, " Chemosphere, vol. 42, pp. 785-796, 2001.
    [44] W.Nimmo, A.A.Patsias, E.Hampartsoumian, B.M.Gibbs, and P.T.Williams, "Simultaneous reduction of NOx and SO2 emissions from coal combustion by calcium magnesium acetate, " fuel, vol. 83, pp. 149-155, 2004.
    [45] W.Nimmo, A.A.Patsias, E.Hampartsoumian, and B.M.Gibbs, "Calcium magnesium acetate and urea advanced reburning for NO control with simultaneous SO2 reduction, " fuel, vol. 83, pp. 1143-1150, 2004.
    [46] M.L. J and o. G. R, "Assessment of dry sorbent emission control technology, " JACPA, vol. 37, pp. 642-654, 1987.
    [47] P. Davini, "An investigation of the influence of sodium chloride on the desulphurization properties, " fuel, vol. 71, pp. 831-834, 1992.
    [48] B. Ietal, "Useful experimental technical for the study of heterogeneous teactions, " Chemical Engineering Technology, vol. 15, pp. 151-161, 1992.
    [49] 马玉城,“秸秆生产热解油和脱盐脱硝剂获成功,”现代化工,vol.20,pp.65,2000.
    [50] 张正文,“秸秆综合利用新技术,”今日科技,pp.13,2000.
    [51] 马驰,“一项洁净煤技术的创新,”中国煤炭,vol.24,pp.58,1998.
    [52] 魏祥瑞,“电厂燃煤添加有机钙废弃物脱硫实验研究,”煤炭工程,pp.46-47,2003.
    [53] 郑瑛,史学峰,周英彪,and郑楚光,“石灰石静态煅烧特性的研究,”热能动力工程,vol.13,pp.319-321,1998.
    [54] 郑瑛,史学峰,容伟,and郑楚光,“石灰石快速煅烧及表面积形成的实验研究,”华中理工大学学报,vol.27,pp.43-45,1999.
    [55] 张淑新,齐庆杰,刘建忠,and周俊虎,“石灰石的孔隙结构特点及对固氟反应的影响,” 燃料化学学报,vol.30,pp.311-315,2002.
    [56] L. K, D..W, G. J. R, and L. J, "sulfation and reaction characteristics of nine limestone, " fuel, vol. 27, pp. 153-163, 1999.
    [57] J.Adanez, L. F. d. Diego, and F.Garcia-Labiano, "calcination of calcium acetate and calcium magnesium acetate: effect of the reacting atmosphere, " fuel, vol. 78, pp. 583-592, 1999.
    [58] H. Sulaiman and S. A. W, "the calcination and sulphation behaviour of sorbents in fluidized bed combustion, " fuel, vol. 70, pp. 169-176, 1991.
    [59] Hanson and Tullin, "sintering of calcium carbonate and lime mud in a carbon dioxide atmosphere, " journal of pulp and paper science, vol. 22, pp. 327, 1996.
    [60] 王宏,张礼知,陆晓华,and郑楚光,“O2/CO2方式下钙基吸收剂在脱硫过程中微观结构变换的研究,”工程热物理,vol.22,pp.127-129,2001.
    [61] 程世庆,施正伦,骆仲央,and方梦祥,“贝壳与石灰石脱硫特性的实验研究,”浙江大学学报(工学版),vol.37,pp.221-224,2003.
    [62] 程军,周俊虎,刘建忠,and周志军,“电石渣动态煅烧及烧结过程的微观结构分析,”化工学报,vol.54,pp.984-988,2003.
    [63] 刘现卓,赵长遂,钱晓东,and吴新,”石灰石孔隙结构改性及其脱硫性能研究,”燃烧科学与技术,vol.9,pp.280-284.2003.
    [64] 傅国光,彭晓峰,颜岩,and王补宣,“水合煅烧改性CaO孔隙的实验分析,”热科学与技术,vol.2,pp.240-244,2003.
    [65] P. Davini, "An investigation of the influence of sodium chloride on the desulfurization properties of limestone, " fuel, vol. 71, pp. 831-842, 1992.
    [66] David, "structural changes in surfactant-modified sorbents during furnace injection, " AICHE, vol. 35, pp. 500-506, 1989.
    [67] E. Sasaoka and V. M. A, "novel preparation method of macroporous lime from limestone for high-temperature desulfurization, " Ind Eng Chem Res vol. 36, pp. 3639, 1997.
    [68] Kirchgessner and L. J. M, "Lignosulfonate-Modified calcium hydroxide for sulfur dioxide control" Ind &Eng Chem vol. 26, pp. 2397-2398, 1987.
    [69] M.S. K, A. R, and S. C, "Pore-structure optimization of calcium carbonate for enhanced sulfation "AICHEJ, vol. 43, pp. 2323-2335, 1997.
    [70] G. D. A, M. S. K, and A. R, "Investigation of high reactivity calcium carbonate sorbent for enhanced SO2 capture, " Ind Eng Chem Res vol. 35, pp. 598~606, 1996.
    [71] G. B. K and B. K. R, "Pore distribution changes of calcium based sorbents reacting with sulfur dioxide "AICHEJ, vol. 33, pp. 1719~1726, 1987.
    [72] B. Shemwell, A. Atal, and Y. A.Levendis, "A laboratory investigation on combined in-furnace sorbent injection and hot flue-gas filtration to simultaneously capture SO2、NOx、HCl、and particulate emissions, " Environ.Sci. Technol, vol. 34, pp. 4855~4866, 2000.
    [73] D. Paolo and D. M. Gennaro, "An investigation of the influence of sodium chloride on the desulphurization properties of limestone, " fuel, vol. 71, pp. 831, 1992.
    [74] 袁中山,吴迪镛,谭志诚,and孟霜鹤,“燃煤固硫及催化燃烧一体化添加剂的催化作用机理研究,”燃料化学学报,vol.33,pp.267-272,2005.
    [75] B. E. J, "coal combustion chemistry-correlation aspects, " Elsevir Science Publishers, B, V, 1984.
    [76] 李玉林,“US-固体燃煤添加剂对煤的燃烧特性影响极其机理,”福州大学学报(自然科学版),vol.27,pp.116-121,1999.
    [77] 武增华and段生权,“化学添加剂对燃煤的降低燃点和促燃作用,”煤炭转化,vol.19,pp.86-90,1996.
    [78] 袁中山,吴迪镛,and王树东,”采用一体化燃煤添加剂的燃烧中固硫作用研究,”燃料化学学报,vol.30,pp.36-40,2002.
    [79] 徐谷衡,“煤催化着火机理,”同济大学学报,vol.21,pp.415-420,1993.
    [80] 谢峻林,肖天来,and冯小平,”催化剂对水泥窑用煤燃烧性能的影响,”新世纪水泥导报,pp.26-28,2000.
    [81] 蔡俊峰,“催化助热燃烧,”煤炭转化,vol.16,pp.45-53,1993.
    [82] A. Atal and Y. A. Levendis, "observations on the combustion behavior of coal water fuels and coal water fuels impregnated with calcium magnesium acetate, " Combustion and Flame, vol. 93, pp. 61-89, 1993.
    [83] Y. Levendis, S. Nam, M. Lowenberg, and G RC Flagan, "Catalysis of the combustion of synthetic char particles by various forms of calcium additives, " Energy fuels, vol. 3, pp. 28, 1989.
    [84] P. Solomon, T. Fletcher, and R. Pugmire, "Progress in coal pyrolysis, " Fuel, vol. 72, pp. 587-597, 1993.
    [85] 刘建忠,周俊虎,程军,and曹欣玉,”长广煤燃烧硫析出动态特性研究,”燃料化学学报,vol.29,pp.368-370,2001.
    [86] Torres-Ordonez, L. R.j., J.P., and A. F. Sarofim, "Intrinsic Kinetics of CaS Oxidation, " Energy&Fuels, pp. 506-515 1989.
    [87] 江逢霖,基础物理化学.上海:复旦大学出版社,1992.
    [88] 俞海淼,“煤及煤浆炉内沾污结渣动态过程及烧结试验研究,”in机械与能源学院,vol.博士学位论文.杭州:浙江大学,2005.
    [89] 刘迎晖,徐杰英,郑楚光,and邱建荣,”燃煤烟气中汞的形态分布及热力学模型预报,” 华中科技大学学报,vol.29,pp.90-92,2001.
    [90] R. J, Torres-Ordonez, T. F.Wall, and J. P. L. a. A. F. Sarofim, "Sulfur retention as CaS during coal combustion: a modeling study to define mechanisms and possible technologies, " Fuel, vol. 72, pp. 633-644, 1993.
    [91] 吕欣and林国珍,“型煤燃烧过程中CaS的形成及其固硫作用,”环境化学,vol.17,pp.528—531,1998.
    [92] 刘振学,周仕学,and魏贤勇,“高温型煤常压固定床气化炉内固硫效果研究,”煤炭转化,vol.23,pp.78—80,2000.
    [93] 赵惠富,赵启伟,and吕清刚,“还原和氧化气氛下CaS固硫的模型及预燃室技术,”燃烧科学与技术,vol.9,pp.174—177,2003.
    [94] 李文,韩翔宇,“加压条件下硫化钙氧化反应动力学和模型,”化工学报,vol.54,pp.625—632,2003.
    [95] 尹仕吉and路春美,“热天平对CaS的形成及其稳定性的试验研究,”发电设备,pp.13—16,1997.
    [96] F. H, "The kinetics of limestone/dolomite with H2S under rich combustion conditions, " Combustion Science and Technology, vol. 26, pp. 83-88, 1981.
    [97] A. D and H. A. N, "The kinetics of the reaction between calcium oxide and hydrogen sulphide at the temperatures of fluidized bed combustors, " presented at 23rd International Symposium on Combustion, Pittsburgh 1990.
    [98] E. Anthony, J. R. Stephenson, and A. P. de Iribarne, "Calcium sulphide formation in solid wastes from circulating fluidized bed combustors, " presented at Proceedings of the international conference on fluidized bed combustion, 1987.
    [99] A. Lyngfelt, V. Langer, B. Steonari, and K. Puromi, "Calcium sulphide formation in fluidized bed boilers, " Canadian Journal of Chemical Engineering, vol. 73, pp. 228-233, 1995.
    [100] T. Mattison and A. Lyngfelt, "The presence of CaS in the combustion chamber of a 12MW circulating fluidized bed boiler, " presented at Proceedings of the international conference on fluidized bed combustion.
    [101] Y. Ninorniya, Z. B. Dong, K. Hashimoto, and A. Sato, "Oxidation of calcium sulphide in an advanced PFBC cycle-effect of O2 concentration and particle size on CaS oxidation, " presented at Proceedings of the international conference on fluidized bed combustion.
    [102] F. H, "Instric global rate constant for the high temperature reaction of CaO qith H2S, " Ind Engng Chem Fundamem, vol. 23, pp. 338-341, 1984.
    [103] U. S, K. T, I. D, and K. T. I, "in-situ desulfurization in gasifier using Ca-based adsorbent and CaS oxidation in combustor, " presented at Proc Third SCEJ Symp on Fluidization, 1997.
    [104] Davies, N.H., Laughlin, and K.M.&Hayhurst, "The oxidation of calcium sulphide at the temperatures of fluidized combustors, " presented at 25th Symposium(International) on Combustion, 1994.
    [105] Kamphuis, B.Potma, A.W.prins, W., , and V. Swaaij.W.P.M, "The reductive decomposition of calcium sulphate—1.Kinetics of the apparent solid-solid reaction, " Chemical Engineering Science, vol. 48, pp. 105-106, 1993.
    [106] Davies and Hayhurst, "On the formation of liquid melts of CaS and CaSO4 and their importance in the absorption of SO2 by CaO, " Combustion and Flame, vol. 106, pp. 359-362, 1996.
    [107] R.T. Yang and M. S. Shen, "Direct evidence for the existence of gaseous intermediates in the calcium sulphide/calcium sulphate reaction, " A.I.C.H.E.J, vol. 25, pp. 547-548, 1979.
    [108] Torres-Ordpnez, R. J. Longweil, J. P. a. Sarofilm, and A.F, Energy&Fuels, pp. 506, 1989.
    [109] N. Y, S. A, and A. P. Watkinson, "Oxidation of calcium sulfide in fluidized bed combustion/regeneration conditions, " presented at Proc. 13th Int. Conf. Fluid. Bed Combustion, 1995.
    [110] S.Ozawa, Y.morita, L.huang, H.matsuda, and M.Hasatani, "Oxidation of Coal Char/CaS Mixture at High Temperature, " Energy&Fuels, vol. 14, pp. 138-141, 2000.
    [111] Y. Patrik, H. Mikko, and I. Kristiina, "Pressurized stabilization of desulfurization residues from gasification processes, " Energy&Fuels, vol. 10, pp. 1189-1195, 1996.
    [112] Q. K, M. T, and S. B. M, "Thermogravimetric combined with mass spectrometric studies on the oxidation of calcium sulfide, " Thermochim Acta, vol. 298, pp. 87-93, 1997.
    [113] K. Qiu, O. Lindqvist, and T. Mattisson, "Regeneration of calcium sulfide under alternating oxidizing and inert conditions: Kinetics and Mechanism, " Ind.Eng. Chem. Res., vol. 37, pp. 923-928, 1998.
    [114] G, Marban, M. Garcia-Calzada, and A. B.Fuertes, "Kinetics of oxidation of CaS particles in the regime of high SO2 release, " Chemical Engneering Science, vol. 54, pp. 495-506, 1999.
    [115] G. Marban, M. Garcia-Calzada, and A. B.Fuertes, "Kinetics of oxidation of CaS particles in the regime of low SO2 release, " Chemical Engneering Science, vol. 54, pp. 77-90, 1999.
    [116] K.Qiu, E.J.Anthony, and L.Jia, "Oxidation of sulfided limestone under the conditions of pressurized fluidized bed combustion, " Fuel, vol. 80, pp. 549-558, 2000.
    [117] B.Garcia, Y.Yamazaki, and T.Takarada, "Oxidation behavior of CaS produced from Ca ion-exchanged coal, " Fuel, vol. 78, pp. 883-890, 1999.
    [118] M. Garcia-Calzada, G Marban, and A. B. Fuertes, "Stability and Oxidative stabilization of sulphided calcareous sorbents from entrained flow gasifiers, " Chemical Engineering Science, vol. 55, pp. 3697-3714, 2000.
    [119] J. Szekely and J. W. Evans, "A structural model for gas-solid reactions with a moving boundary, " Chem. Engng. Sci, vol. 25, pp. 1091, 1970.
    [120] A.D.C. and A. K. Galwey, " A kinetic and mechanistic investigation of the formation of calcium sulphate in reactions that may be of use in flue-gas desulfurizatin. Ⅰ.Oxidation of CaSO3 or of CaS with O2 or with SO2, " Proc. R. Soc. Lond. A, pp. 585-602, 1996a.
    [121] F. w.T, K.D, and Y. N, "Rate of reduction of nitric oxide by char, " Int Chem Eng, vol. 20, pp. 139-244, 1980.
    [122] F. w. T, T. M, and T. M, "Nitric oxide reduction by char and carbon monoxide-fundamental kinetics of nitric oxide reduction in fluidized-bed combustion of coal, " fuel, vol. 64, pp. 1306-1309, 1985.
    [123] W. Zhibeng and O. Y, "Remarkable formation of N2 from chinese lignite during coal pyrolysis, " fuel, vol. 75, pp. 1280-1285, 1996.
    [124] Y. Hiromi, H. Hajime, and T. Akira, "Reaction of nitric oxide with metal loaded carbon in the presence of oxygen, " Applied Catalysis, vol. 78, pp. 1-6, 1991.
    [125] I.-G. M. J and L.-S. A, "NO reduction by activated Carbons.4.catalysis by calcium " Energy and Fuels, vol. 9, pp. 112-118, 1995.
    [126] I.-G. M. J and L.-S. A, "NO reduction by activated carbons.5.catalytic effect of Iron, " energy and Fuels, vol. 9, pp. 540-548, 1995.
    [127] 赵宗彬and李保庆,“煤中矿物质对NO—半焦还原反应的影响,”燃料化学学报,vol.29,pp.129-134,2001.
    [128] 赵宗彬,李文,and李保庆,“矿物质对煤焦燃烧过程中NO释放规律的影响,”化工学报,vol.54,pp.100-106,2003.
    [129] P. E. B. Hansen, K.Dam-Johansen, J.E.Johnsson, and T.Hulgaad, "Catalytic reduction of NO and N2O on limestone during sulfur capture under fluidized bed combustion conditions, " Chemical engineering science, vol. 47, pp. 2419-2424, 1992.
    [130] A.N.Hayhurst and A.D.Lawrence, "The effect of solid CaO on the production of NOx and N2O in fluidized bed combustors: studies using pyridine as a prototypical nitrogenous " combustion and flame, vol. 105, pp. 511-527, 1996.
    [131] 赵宗彬,李文,and李保庆,“半焦负载钙和铁催化还原NO的研究,”环境科学,vol.22,pp.17-20,2001.
    [132] R. F.W, Kopsel, and S. Halang, "Catalytic influence of ash elements on NOx formation in char combustion under fluidized bed conditions" Fuel vol. 76, pp. 345-351, 1997.
    [133] T. Shimuzu, Y. Tachiyama, D. fujta, and K. Dumazawa, "Effect of SO 2 Removal by Limestone Injection on NOx and N2O Emissions from a CFB Combustor, " Energy Fuels, pp. 753, 1992.
    [134] W. Lin, J. Johnsson, K. Dam-Johansen, and C. V. den, "Interaction between emissions of sulfur dioxide and nitrogen oxides in fluidized bed combustion, " Fuel, vol. 73, pp. 1202, 1994.
    [135] S.Schafer and B.Bonn, "Hydrolysis of HCN as an important step in nitrogen oxide formation in fluidized combustion. part 2: heterogeneous reactions involving limestone " Fuel vol. 81, pp. 1641-1646, 2002.
    [136] L. J and K. E, "Catalytic conversion of nitrogen compounds in gasification gas, " Fuel Processing Technology, vol. 29, pp. 43-56, 1991.
    [137] H.Liu and B.M.Gibbs, "The influence of calcined limestone on NOx and N2O emissions from char combustion in fluidized bed combustors, " Fuel vol. 80, pp. 1211-1215, 2001.
    [138] A. Jensen, J. E. Johnsson, and K. Dam-Johansen, "Catalytic and Gas-solid reaction involving HCN over limestone, " AICHE J, vol. 43, pp. 356-364, 1997.
    [139] Z. wu, Y.sugimoto, and H.Kawashima., "Catalytic nitrogen release during a fixed-bed pyrolysis of model coals containing pyrrolic or pyridinic nitrogen "Fuel, vol. 80, pp. 251-254, 2001.
    [140] O. Y and W. Zhibeng, "Nitrogen Release During Fixed-Bed Gasification of Several Coals with CO2: Factors Controlling Formation of N2, " Fuel, vol. 78, pp. 521-527, 1999.
    [141] N. Tsubouchi and Y. Ohtsuka, "Nitrogen release during high temperature pyrolysis of coals and catalytic role of calcium in N2 formation, " Fuel, vol. 81, pp. 2335-2342, 2002.
    [142] R. Guan, W. Li, H. Chen, and B. Li, "The release of nitrogen species during pyrolysis of model chars loaded with different additives " Fuel processing Technology, vol. 85, pp. 1025-1037, 2004.
    [143] N. Tsubouchi and Y. Ohtsuka, "Formation of N2 during pyrolysis of Ca-loaded coals," Fuel, vol. 81,pp. 1423-1431,2002.
    [144] R. F.W.Kopsel and S. Halang, "Catalytic influence of ash elements on NOx formation in char combustion under fluidized bed conditions," fuel, vol. 76, pp. 345-351, 1997.
    [145] Y. Ohtsuka, Wuzhiheng, and E. Furimsky, "Effect of alkali and alkaline earth metals on nitrogen release during temperature programmed pyrolysis of coal " Fuel, vol. 76, pp. 1361-1367, 1997.
    [146] M. J. A and B. C. T, "Mechanism and modeling of nitrogen chemistry in combustion," Progress in Energy and Combustion Science, vol. 15, pp. 287~338, 1989.
    [147] Frenklach M," http://www.me.berkeley.edu/gri_mech[EB]." 2000.
    [148] G P, A. M. U, and D.-J. K, " Kinetic modeling of hydrocarbon/nitric oxide interactions in a flow reactor," Combustion and Flame, vol. 115, pp. 1~27, 1998.
    [149] D. P, L. F, and C. S, "Experimental and detailed kinetic modeling of nitric oxide reduction by natural gas blend in simulated reburning conditions " Combustion Science and Technology, vol. 139, pp. 329~363, 1998.
    [150] B. D. C, C. C. J, and C. R. A, " Evaluated kinetic data for combustion modeling," J Phys Chem Ref Data, vol. 21, pp. 411~737, 1992.
    [151] T. L. R, B. M. C, and C. D. W, "Hydrocarbon/nitric oxide interactions in low-pressure flames " presented at Twenty-first Symposium (international) on Combustion, Pittsburgh, 1986.
    [152] B. T. E, T. F. R, and C. W. Y, "Partitioning of nitrogenous species in the fuel-rich stage of reburning " Energy and Fuels, pp. 231~237, 1991.
    [153] D. P, L. J, and C. M, "Reduction of NO by propane in a JSR at 1 atm: experimental and kinetic modeling," Fuel, vol. 80, pp. 979~986, 2001.
    [154] P. M and E. G, "Formation of HCN by the action of nitric oxide on methane at atmospheric pressure, l.General conditions of formation," Compt Rend, vol. 231, pp. 1302~1304, 1950.
    [155] M. A. L, " The reduction of nitrogen oxide in simulated combustion effluents by hydrocarbon-oxygen mixtures[A]," presented at Fifteenth Symposium (International) on Combustion, Pittsburgh, 1974.
    [156] W. J. O. L and S. C. V, "Matovich M A.Reduction of sulfur trioxide and nitrogen oxides by secondary fuel injection," presented at Fourteenth mposium (International) on Combustion, Pittsburgh, 1973.
    [157] T. D. R and C. A. W, "Advanced reburning measurements of temperature and species in a pulverized coal flame," fuel, vol. 79, pp. 1 687~1 695, 2000.
    [158] W. B. A and Pasternack, "The effect of nitric oxide on premixed flames of CH4 ,C2H6 ,C2H4 and C2H2," Combustion and Flame, vol. 111, pp. 87—110, 1997.
    [159] E. T. E, M. S, and W. J, "Destruction and formation of NOx in low pressure stoichiometric CH4/O2 flames," presented at Twenty-Fourth Symposium (International) on Combustion, Pittsburgh, 1996.
    [160] E. Hampartsoumian and W. Nimmo, "An experimental investigation of sulphur-nitrogen interactions in turbulent, spray flames," Combust Sci Technol, vol. 110, pp. 487-504, 1995
    [161] W. Nimmo, E. Hampartsoumian, K. Hughes, and A. Tomlin, "Experimetal and kinetic studies on the effect of sulfur nitrogen interactions on NO formation in flames," presented at Twenty-Seventh Symposium (International) on Combustion, 1998.
    [162] F. Miccio, G Loffler, V. J.Wargadalam, and F. Winter, "The influence of SO2 level and operating conditions on NOx and N2O emissions during fluidised bed combustioin of coals, " fuel, vol. 80, pp. 1555-1566, 2001.
    [163] G. P, A. M. U, and D.-J. K, "Impact of SO~2 and NO on CO Oxidation under Post-Flame Conditions, " INTERNATIONAL JOURNAL OF CHEMICAL KINETICS, vol. 28, pp. 773, 1996.
    [164] L.D.pfefferle and S. W.Churchil, "effect of fuel sulfur on nitrogen oxide formation in a thermally stabilized plug-flow burner, " Ind Eng Chem Res, vol. 28, pp. 1004-1010, 1989.
    [165] W.J.O. L and E. J. M, "Effect of fuel sulpher species on Nitrogen oxide emissions from premixed flames, " combustion and flame, vol. 25, pp. 355-360, 1975.
    [166] E. Hampartsoumian, W. Nimmo, A. S. Tomlin, K. J. Hughes, and T. Mahmud, "Studies of sulphur-nitrogen interactions in turbulent-spray flames, " Journal of the Institute of Energy, vol. 71, pp. 137-144, 1998.
    [167] W. Nimmo, A. S. Tomlin, and E. Hampartsoumian, " Sulphur-Nitrogen interactions in flames and their effects on NO formation " presented at 26th International Symposium on Combustion, 1996.
    [168] E.Hampartsoumian, W.Nimmo, and B.M.Gibbs, "Nitrogen sulpher interactions in coal flames, " Fuel, vol. 80, pp. 887-897, 2001.
    [169] M.L. J, "Pollutant Foramtion and Interaction in the Combustion of Heavy Liquid Fuels, " vol. Doctor. London: Universtiy of London, 1998.
    [170] C.T. L and W. J. O. L, "Postflame Behavior of Nitrogenous Species in the Presence of Fuel Sulphur Ⅱ: Rich, CH4/He/O2 Flames, " Combustion and Flame, vol. 58, pp. 141-152, 1984.
    [171] J.J. B and C. D. R, "Laser-induced Fluorescence Detection of the N S Radical in Sulphur and Nitrogen Doped Methane Flames, " Combustion and Flame, vol. 64, pp. 55-64, 1986.
    [172] C.H. K, G. P. R, and M. P, "Effect of SO2 on the Reduction of NOx by Reburning with Methane, " Fuel, vol. 70 pp. 1137-1142, 1991.
    [173] T. S and S. O, "Enhancement of Fuel-nitrogen Oxidation by Fuel-sulphur in Fuel-rich Flames, " Combustion Science and Technology, vol. 30, pp. 231-239, 1983.
    [174] T. S and S. O, "An Experimental Investigation of Fuel Sulphur2fuel Nitrogen Interactions in Low Pressure Premixed Flames, " presented at 20th Symposium (International)on Combustion, Pittsburgh, 1984.
    [175] W.J.O. L, W, t. E. C, and C. T. L, "Postflame Behavior of Nitrogenous Species in the Presence of Fuel Sulfur Ⅰ: Rich, Moist, CO/Ar/O2 Flames, " Combustion and Flame, vol. 49, pp. 261-274, 1983.
    [176] P.A. Glaude, P. A., Pitz, W. J., and M. J. Thomson, "Chemical Kinetic Modeling of Dimethyl Carbonate in an Opposed-Flow Diffusion Flame, " presented at Proceedings of the Combustion Institute, 2004.

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700