炭基材料用于烧结烟气协同脱硫脱硝的研究现状
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摘要
烧结烟气成分复杂多样,只针对其中某一污染物进行减排控制,不仅投资高,能耗大,且存在设备易腐蚀,处理效果不佳等问题。为提高烧结烟气脱硫脱硝效率,结合烧结烟气的特点及国内外治理手段,分析了各种工艺的优缺点,对烧结烟气污染物治理的发展方向进行探讨,得出炭基材料是用于烧结烟气多污染物协同治理较好的吸附材料,并在前人研究的基础上系统地阐述了炭基材料改性前后表面官能团的作用,探讨了炭基材料用于烧结烟气脱硫脱硝的机理,提出采用Fe_2O_3和VOSO_4协同负载改性活性炭(AC),可增加催化剂的活性位并提高抗硫性,为今后的烧结烟气多污染物协同治理提供借鉴,同时对炭基材料的工业发展前景进行展望。
The composition of sintering flue gas is complex and diverse, and the control of single pollutant's emission reduction is usually unpractical, and other problems such as easy corrosion of equipment and poor treatment effect also occur. In order to improve the efficiency of desulfurization and denitrification of sintering flue gas, combining with the characteristics of the sintering flue gas and development of global treatment methods for the treatment of sintering flue gas pollutants, this paper analyzed the advantages and disadvantages of various processes, and discussed the development orientation for treatment of sintering flue gas pollutants, and concluded that carbon-based materials are one of the most promising adsorption materials for the synergistic treatment of multi pollutants in sintering flue gas. In addition, based on previous researches, the functions of the corresponding functional groups on the surface of carbon-based materials before and after modification were systematically summarized, and the mechanisms of carbon-based materials for desulfurization and denitrification of flue gas were discussed, and as a result, the present research hypothesized that activated carbon modified by co-supported Fe_2O_3 and VOSO_4 could improve the active sites and sulfur resistance of the catalyst, and provided reference for synergetic treatment of multi pollutants, and the prospects of industrial development of carbon-based materials were also discussed in this paper.
The composition of sintering flue gas is complex and diverse, and the control of single pollutant's emission reduction is usually unpractical, and other problems such as easy corrosion of equipment and poor treatment effect also occur. In order to improve the efficiency of desulfurization and denitrification of sintering flue gas, combining with the characteristics of the sintering flue gas and development of global treatment methods for the treatment of sintering flue gas pollutants, this paper analyzed the advantages and disadvantages of various processes, and discussed the development orientation for treatment of sintering flue gas pollutants, and concluded that carbon-based materials are one of the most promising adsorption materials for the synergistic treatment of multi pollutants in sintering flue gas. In addition, based on previous researches, the functions of the corresponding functional groups on the surface of carbon-based materials before and after modification were systematically summarized, and the mechanisms of carbon-based materials for desulfurization and denitrification of flue gas were discussed, and as a result, the present research hypothesized that activated carbon modified by co-supported Fe_2O_3 and VOSO_4 could improve the active sites and sulfur resistance of the catalyst, and provided reference for synergetic treatment of multi pollutants, and the prospects of industrial development of carbon-based materials were also discussed in this paper.
引文
[1] 葛园琴,李学金,徐智英.烧结烟气湿法脱硫技术应用[J].环境科技,2011,24(4):53-55.
[2] 朱廷钰,刘青,李玉然,等.钢铁烧结烟气多污染物的排放特征及控制技术[J].科技导报,2014,32(33):51-56.
[3] Govind Sethia, Abdelhamid Sayari. Activated carbon with optimum pore size distribution for hydrogen storage[J].Carbon,2016, 99:289-294.
[4] Lilja Nielsen, Mark J Biggs, William Skinner, et al. The effects of activated carbon surface features on the reactive adsorption of carbamazepine and sulfamethoxazole[J].Carbon,2014,80:419-432.
[5] 陈健.烧结烟气氮氧化物减排技术路径探讨[J].环境工程,2014,32(增刊1):459-464.
[6] 鲁健.烧结烟气特点及处理技术的发展趋势[J].内蒙古科技大学学报,2012(3):227-230.
[7] 邹凌云,孙普.烧结烟气脱硫脱硝处理技术的比较分析[J].山西冶金,2016(4):57-59.
[8] 陈凯华,宋存义,张东辉,等.烧结烟气联合脱硫脱硝工艺的比较[J].烧结球团,2008,33(5):29-32.
[9] 史夏逸,董艳苹,崔岩.烧结烟气脱硝技术分析及比较[J].中国冶金,2017,27(8):56-59.
[10] 杨波.活性炭在太钢450烧结烟气脱硫脱硝工程中的应用及展望[J].科学之友,2011(23):10-11.
[11] 梁利生,周琦.宝钢湛江钢铁铁前工序烟气净化新工艺技术[J].宝钢技术,2016(4):43-48.
[12] Yang F H, Yang R T. Ab initio molecular orbital study of the mechanism of SO2 oxidation catalyzed by carbon[J]. Carbon,2003(41):2149-2158.
[13] Zhang K, He Y, Wang Z H, et al. Multi-stage semi-coke activation for the removal of SO2 and NO[J].Fuel,2017(210):738-747.
[14] Fang N J, Guo J X, Shu S, et al. Influence of textures, oxygen-containing functional groups and metal species on SO2 and NO removal over Ce-Mn/NAC[J].Fuel,2017(202):328-337.
[15] 苏玉栋,李咸伟,范晓慧.烧结过程中NOx减排技术研究进展[J].烧结球团,2013,38(6):41-44.
[16] 张鹏宇.催化活性炭脱硫脱硝除汞的试验研究[D].武汉:华中科技大学,2004.
[17] Li Y R, Guo Y Y, Zhu T Y, et al. Adsorption and desorption of SO2,NO and chlorobenzene on activated carbon[J].Environmental Sciences,2016(43):128-135.
[18] 蔡芬芬,朱义年,梁美娜.活性炭改性的研究进展及其应用[C]//中国环境科学学会学术年会优秀论文集,2008:776-780.
[19] 谢新萍,蒋剑春,孙康,等.脱硫脱硝用活性炭研究进展[J].生物质化学工程,2012,46(1):45-50.
[20] 杨斌武,蒋文举,常青.微波改性活性炭及其脱硫性能研究[J].兰州交通大学学报,2006,25(4):51-53.
[21] Jia Q P, Aik C L. Effects of pyrolysis conditions on the physical characteristics of oil-palm-shell activated carbons used in aqueous phase phenol adsorption[J].Analytical and Applied Pyrolysis,2008(83):175-179.
[22] 曹晓强,黄学敏,刘胜荣,等.微波改性活性炭对甲苯吸附性能的实验研究[J].西安建筑科技大学学报(自然科学版),2008,40(2):249-253.
[23] 宋欣钰,宁国庆.烟气脱硫脱硝活性炭的研究进展[J].山东化工,2017,46(7):71-75.
[24] 左嫣然,易红宏,唐晓龙,等.酸碱改性对活性焦烧结烟气脱硫性能的影响[J].环境工程学报,2015(7):3405-3410.
[25] 石清爱,于才渊.改性活性炭的烟气脱硫脱硝性能研究[J].化学工程,2010,38 (10):106-109.
[26] Gregorio Marbán, Raquel Antuňa, Antonio B Fuertes. Low temperature CR of NOx with NH3 over actived carbon fiber composite suppered metal oxides[J].Applied Catalysis B: Environmental,2003,41:323-338.
[27] 常连成,肖军,张辉,等.改性活性焦低温脱硝实验研究[J].太原理工大学学报,2010,41(5):593-597.
[28] 景文,郭倩倩,候亚芹,等.一种新型钒基低温脱硫脱硝催化剂[J].天然气化工(C1化学与化工),2014(4):5-9.
[2] 朱廷钰,刘青,李玉然,等.钢铁烧结烟气多污染物的排放特征及控制技术[J].科技导报,2014,32(33):51-56.
[3] Govind Sethia, Abdelhamid Sayari. Activated carbon with optimum pore size distribution for hydrogen storage[J].Carbon,2016, 99:289-294.
[4] Lilja Nielsen, Mark J Biggs, William Skinner, et al. The effects of activated carbon surface features on the reactive adsorption of carbamazepine and sulfamethoxazole[J].Carbon,2014,80:419-432.
[5] 陈健.烧结烟气氮氧化物减排技术路径探讨[J].环境工程,2014,32(增刊1):459-464.
[6] 鲁健.烧结烟气特点及处理技术的发展趋势[J].内蒙古科技大学学报,2012(3):227-230.
[7] 邹凌云,孙普.烧结烟气脱硫脱硝处理技术的比较分析[J].山西冶金,2016(4):57-59.
[8] 陈凯华,宋存义,张东辉,等.烧结烟气联合脱硫脱硝工艺的比较[J].烧结球团,2008,33(5):29-32.
[9] 史夏逸,董艳苹,崔岩.烧结烟气脱硝技术分析及比较[J].中国冶金,2017,27(8):56-59.
[10] 杨波.活性炭在太钢450烧结烟气脱硫脱硝工程中的应用及展望[J].科学之友,2011(23):10-11.
[11] 梁利生,周琦.宝钢湛江钢铁铁前工序烟气净化新工艺技术[J].宝钢技术,2016(4):43-48.
[12] Yang F H, Yang R T. Ab initio molecular orbital study of the mechanism of SO2 oxidation catalyzed by carbon[J]. Carbon,2003(41):2149-2158.
[13] Zhang K, He Y, Wang Z H, et al. Multi-stage semi-coke activation for the removal of SO2 and NO[J].Fuel,2017(210):738-747.
[14] Fang N J, Guo J X, Shu S, et al. Influence of textures, oxygen-containing functional groups and metal species on SO2 and NO removal over Ce-Mn/NAC[J].Fuel,2017(202):328-337.
[15] 苏玉栋,李咸伟,范晓慧.烧结过程中NOx减排技术研究进展[J].烧结球团,2013,38(6):41-44.
[16] 张鹏宇.催化活性炭脱硫脱硝除汞的试验研究[D].武汉:华中科技大学,2004.
[17] Li Y R, Guo Y Y, Zhu T Y, et al. Adsorption and desorption of SO2,NO and chlorobenzene on activated carbon[J].Environmental Sciences,2016(43):128-135.
[18] 蔡芬芬,朱义年,梁美娜.活性炭改性的研究进展及其应用[C]//中国环境科学学会学术年会优秀论文集,2008:776-780.
[19] 谢新萍,蒋剑春,孙康,等.脱硫脱硝用活性炭研究进展[J].生物质化学工程,2012,46(1):45-50.
[20] 杨斌武,蒋文举,常青.微波改性活性炭及其脱硫性能研究[J].兰州交通大学学报,2006,25(4):51-53.
[21] Jia Q P, Aik C L. Effects of pyrolysis conditions on the physical characteristics of oil-palm-shell activated carbons used in aqueous phase phenol adsorption[J].Analytical and Applied Pyrolysis,2008(83):175-179.
[22] 曹晓强,黄学敏,刘胜荣,等.微波改性活性炭对甲苯吸附性能的实验研究[J].西安建筑科技大学学报(自然科学版),2008,40(2):249-253.
[23] 宋欣钰,宁国庆.烟气脱硫脱硝活性炭的研究进展[J].山东化工,2017,46(7):71-75.
[24] 左嫣然,易红宏,唐晓龙,等.酸碱改性对活性焦烧结烟气脱硫性能的影响[J].环境工程学报,2015(7):3405-3410.
[25] 石清爱,于才渊.改性活性炭的烟气脱硫脱硝性能研究[J].化学工程,2010,38 (10):106-109.
[26] Gregorio Marbán, Raquel Antuňa, Antonio B Fuertes. Low temperature CR of NOx with NH3 over actived carbon fiber composite suppered metal oxides[J].Applied Catalysis B: Environmental,2003,41:323-338.
[27] 常连成,肖军,张辉,等.改性活性焦低温脱硝实验研究[J].太原理工大学学报,2010,41(5):593-597.
[28] 景文,郭倩倩,候亚芹,等.一种新型钒基低温脱硫脱硝催化剂[J].天然气化工(C1化学与化工),2014(4):5-9.