燃煤循环流化床锅炉混燃污泥研究与应用进展Progress of research and application in circulating fluidized bed boilers co-firing coal and sewage sludge
姜华伟,袁淼,袁野,杨海瑞,李延辉
摘要(Abstract):
燃煤循环流化床(CFB)锅炉对污泥进行混燃是一种有效处置污水污泥的方法。在适当的污泥掺烧比例下,污泥与煤混燃不会对电厂生产造成显著不利影响,并且可以使污泥的热值得到合理利用。综述了燃煤CFB锅炉混燃污泥的研究与应用进展,包括煤与污泥混燃过程中污染物的排放和控制、锅炉可靠运行的掺烧比例和污泥干化等情况。分析了混燃湿污泥所带来的运行问题,介绍了采用水煤浆悬浮燃烧技术及富氧燃烧技术对污泥进行处置和利用的情况。指出结合先进烟气净化技术的污泥干化与焚烧综合利用是目前燃煤CFB锅炉混燃污泥应用的较为成熟的工艺之一,在对多种污染物进行有效控制的同时,可以避免污泥贮存、干燥、输送过程中产生臭气对环境的影响。相关调查和分析结论可为燃煤CFB锅炉混燃污泥的设计和安全运行提供参考和依据。
关键词(KeyWords): 循环流化床锅炉;燃煤;污泥;混燃;污染物排放
基金项目(Foundation): 国家自然科学基金项目(52276124);; 青岛市博士后应用研究项目~~
作者(Author): 姜华伟,袁淼,袁野,杨海瑞,李延辉
DOI: 10.19666/j.rlfd.202305085
参考文献(References):
- [1] HUANG Q, XU J. Bi-level multi-objective programming approach for carbon emission quota allocation towards cocombustion of coal and sewage sludge[J]. Energy, 2020,211:118729.
- [2]吕清刚,范晓旭,那永洁,等.城市下水污泥和煤/LPG在循环流化床上的混烧试验研究[J].工程热物理学报, 2006, 27(2):339-342.LYU Qinggang, FAN Xiaoxu, NA Yongjie, et al. Experimental study on the blending of municipal sewage sludge and coal/LPG on a circulating fluidized bed[J]. Journal of Engineering Thermophysics, 2006, 27(2):339-342.
- [3] DUAN Y, ZHAO C, WANG Y, et al. Mercury emission from co-combustion of coal and sludge in a circulating fluidized-bed incinerator[J]. Energy&Fuels, 2010, 24(1):220-224.
- [4] AHN H, KIM D, LEE Y. Combustion characteristics of sewage sludge solid fuels produced by drying and hydrothermal carbonization in a fluidized bed[J].Renewable Energy, 2020, 147:957-968.
- [5] LI X, CHEN L, MEI Q, et al. Microplastics in sewage sludge from the wastewater treatment plants in China[J].Water Research, 2018, 142:75-85.
- [6] MALERIUS O, WERTHER J. Modelling the adsorption of mercury in the flue gas of sewage sludge incineration[J].Chemical Engineering Journal, 2003, 96(1):197-205.
- [7]黄毅,朱建国,吕清刚,等.城市下水污泥循环流化床焚烧工艺分析[J].工业加热, 2013, 42(3):37-39.HUANG Yi, ZHU Jianguo, LYU Qinggang, et al. Analysis of circulating fluidized bed incineration process for municipal sewage sludge[J]. Industrial Heating, 2013,42(3):37-39.
- [8] AKDA?A S, ATAK O, ATIMTAY A T, et al. Cocombustion of sewage sludge from different treatment processes and a lignite coal in a laboratory scale combustor[J]. Energy, 2018, 158:417-426.
- [9]李影平,辛胜伟,王凤君. 660 MW超超临界循环流化床锅炉超低NOx排放研究[J].洁净煤技术, 2019, 25(5):86-92.LI Yingping, XIN Shengwei, WANG Fengjun. Study on ultra-low NOx emissions from 660 MW ultra-supercritical circulating fluidized bed boilers[J]. Clean Coal Technology, 2019, 25(5):86-92.
- [10]吕清刚,李志伟,那永洁,等. CFBC混烧城市污泥与煤:N2O和NO的排放[J].工程热物理学报, 2004,25(1):163-166.LYU Qinggang, LI Zhiwei, Na Yongjie, et al. CFBC blending of municipal sludge with coal:emissions of N2O and NO[J]. Journal of Engineering Thermophysics, 2004,25(1):163-166.
- [11]李欢,李洋洋,金宜英.国内外电厂混烧污泥的烟气污染控制标准比较[J].中国给水排水, 2012:28(14):33-37.LI Huan, LI Yangyang, JIN Yiying. Comparison of Chinese and foreign flue gas pollution control standards for co-combustion of sludge and coal in power plants[J].China Water&Wastewater, 2012, 28(14):33-37.
- [12]常州市:科技创新解决污泥处置难题[J].建设科技,2007(1):18-19.Changzhou City:Solve the problem of sludge disposal by scientific and technological innovation[J]. Construction Science and Technology, 2007(1):18-19.
- [13] ZHAO X, ZHU W, HUANG J, et al. Emission characteristics of PCDD/Fs, PAHs and PCBs during the combustion of sludge-coal water slurry[J]. Journal of the Energy Institute, 2015, 88(2):105-111.
- [14] FYTILI D, ZABANIOTOU A. Utilization of sewage sludge in EU application of old and new methods—a review[J]. Renewable and Sustainable Energy Reviews,2008, 12(1):116-140.
- [15]刘明强.污泥干化焚烧利用技术探讨[J].中国设备工程, 2019(20):199-200.LIU Mingqiang. Exploration of sludge drying and incineration utilization technology[J]. China Equipment Engineering, 2019(20):199-200.
- [16]李云玉,欧阳艳艳,许泓,等.循环流化床一体化污泥焚烧工艺运行成本影响因素分析[J].给水排水, 2016,42(4):45-48.LI Yunyu, OUYANG Yanyan, XU Hong, et al. Analysis of factors influencing the operating cost of circulating fluidized bed integrated sludge incineration process[J].Water Supply and Drainage, 2016, 42(4):45-48.
- [17]王荣建.生活垃圾焚烧炉协同处置污泥技术的研究[J].化工设计通讯, 2020, 46(12):176-177.WANG Rongjian. Study of sludge co-disposal technology in domestic waste incinerators[J]. Chemical Design Communication, 2020, 46(12):176-177.
- [18]张天琦,杨宏伟,袁琦,等.污泥干化焚烧技术研究及应用[J].化工装备技术, 2019, 40(1):33-37.ZHANG Tianqi, YANG Hongwei, YUAN Qi, et al.Research and application of sludge drying and incineration technology[J]. Chemical Equipment Technology, 2019, 40(1):33-37.
- [19] LU S, YANG L, ZHOU F, et al. Atmospheric emission characterization of a novel sludge drying and cocombustion system[J]. Journal of Environmental Sciences, 2013, 25(10):2088-2092.
- [20]朱化军,徐俊,刘伟京,等.市政污泥热电厂循环流化床协同焚烧技术验证研究[J].环境科学学报, 2012,32(12):3101-3107.ZHU Huajun, XU Jun, LIU Weijing, et al. Validation study of circulating fluidized bed co-incineration technology for municipal sludge cogeneration plants[J]. Journal of Environmental Science, 2012, 32(12):3101-3107.
- [21]李博.循环流化床锅炉掺烧城市污泥方案研究与改造实践[J].热力发电, 2020, 49(5):152-156.LI Bo. Research and modification practice of circulating fluidized bed boiler blending with municipal sludge[J].Thermal Power Generation, 2020, 49(5):152-156.
- [22]李森. 300 MW循环流化床锅炉耦合城市污泥焚烧研究与应用[J].煤炭科技, 2020, 41(5):91-93.LI Sen. Research and application of 300 MW circulating fluidized bed boiler coupled with urban sludge incineration[J]. Coal Science and Technology, 2020, 41(5):91-93.
- [23]鄢晓忠,何旭,马琪顺,等. 260 t/h循环流化床锅炉燃烧优化调整试验研究[J].浙江工业大学学报, 2022,50(5):553-558.YAN Xiaozhong, HE Xu, MA Qishun, et al. Experimental study on combustion optimization adjustment of 260 t/h circulating fluidized bed boiler[J]. Journal of Zhejiang University of Technology, 2022, 50(5):553-558.
- [24]柯希玮,孙国瑞,黄中,等. 330 MWe循环流化床锅炉掺烧污泥性能影响[J].洁净煤技术, 2022, 28(3):102-108.KE Xiwei, SUN Guorui, HUANG Zhong, et al. Effect of sludge blending on the performance of 330 MWe circulating fluidized bed boiler[J]. Clean Coal Technology, 2022,28(3):102-108.
- [25]孙宇,龙慎伟,马同胜,等.污泥干化混煤燃烧工艺在循环流化床锅炉应用探讨[J].应用能源技术, 2020(1):30-35.SUN Yu, LONG Shenwei, Ma Tongsheng, et al.Exploration of sludge drying and coal combustion process in circulating fluidized bed boilers[J]. Applied Energy Technology, 2020(1):30-35.
- [26]蒋孟宴,张自丽,孙光,等. 0.3 MWth循环流化床污泥与煤掺烧试验[J].洁净煤技术, 2022, 28(3):130-138.JIANG Mengyan, ZHANG Zili, SUN Guang, et al.Experimental blending of 0.3 MWth circulating fluidized bed sludge with coal[J]. Clean Coal Technology, 2022,28(3):130-138.
- [27]徐燕贵.简谈1台180 t/h焚烧造纸污泥差速流化床锅炉的设计[J].能源研究与管理, 2019(3):83-86.XU Yangui. Brief discussion on the design of a 180 t/h differential fluidized bed boiler for incineration of paper sludge[J]. Energy Research and Management, 2019(3):83-86.
- [28]徐燕贵.简谈焚烧造纸污泥差速流化床锅炉技术[J].能源研究与管理, 2019(4):122-124.XU Yangui. Brief discussion on differential fluidized bed boiler technology for incinerating paper sludge[J]. Energy Research and Management, 2019(4):122-124.
- [29]王慧青,赵永坚,冯斌,等.一种中温分离循环流化床锅炉掺烧污泥的系统及方法:CN202011264462.6[P].2022-08-02[2023-05-30].WANG Huiqing, ZHAO Yongjian, FENG Bin, et al. A system and method for medium temperature separation of circulating fluidized bed boiler blending sludge:CN202011264462.6[P]. 2022-08-02[2023-05-30].
- [30]李昱喆,王磊,钟犁,等.循环流化床锅炉污泥低氮燃烧系统及燃烧方法:CN202210198738.8[P]. 2022-07-12[2023-05-30].LI Yuzhe, WANG Lei, ZHONG Li, et al. Circulating fluidized bed boiler sludge low-NOx combustion system and combustion method:CN202210198738.8[P]. 2022-07-12[2023-05-30].
- [31]徐谷仓.对在循环流化床锅炉用煤泥伴生物污泥燃烧供热项目的评价和建议[J].纺织导报, 2014(1):79-82.XU Gucang. Evaluation and recommendations on the use of coal sludge with bio-sludge combustion for heating in circulating fluidized bed boilers[J]. Textile Journal,2014(1):79-82.
- [32]吴植华,严伟,陈金根,等.以废治废变废为宝在循环流化床锅炉中燃用煤泥拌生物污泥供热[J].染整技术,2014, 36(12):1-9.WU Zhihua, YAN Wei, CHEN Jingen, et al. Combining coal sludge with bio-sludge for heating in circulating fluidized bed boilers[J]. Dyeing and Finishing Technology, 2014, 36(12):1-9.
- [33] GAO F, ZHOU C, DU J, et al. Effect of gaseous agents on co-combustion characteristics of sewage sludge and coal[J]. Journal of Environmental Chemical Engineering,2021, 9(5):106227.
- [34] JANG H N, KIM J H, BACK S K, et al. Combustion characteristics of waste sludge at air and oxy-fuel combustion conditions in a circulating fluidized bed reactor[J]. Fuel, 2016, 170:92-99.
- [35] KOSOWSKA-GOLACHOWSKA M, LUCKOS A,KIJO-KLECZKOWSKA A, et al. Gaseous emissions during oxy-fuel combustion of sewage sludge in a circulating fluidized bed[J]. Powder Technology, 2020,371:209-216.
- [36] DENG W Y, YAN J H, LI X D, et al. Emission characteristics of dioxins, furans and polycyclic aromatic hydrocarbons during fluidized-bed combustion of sewage sludge[J]. Journal of Environmental Sciences, 2009,21(12):1747-1752.
- [37] WERTHER J, OGADA T. Sewage sludge combustion[J].Progress in Energy and Combustion Science, 1999, 25(1):55-116.
- [38] LECKNER B,?MAND L E, LüCKEK, et al. Gaseous emissions from co-combustion of sewage sludge and coal/wood in a fluidized bed[J]. Fuel, 2004, 83(4-5):477-486.
- [39] WU W, DUAN L, DUAN Y, et al. Three-dimensional fullloop numerical simulation of coal and sludge cocombustion in a circulating fluidized bed[J]. Fuel, 2023,337:127235.
- [40]童敏,封羽涛,罗永浩.城市污泥掺煤混烧特性及污染物排放研究[J].环境工程, 2018, 36(3):133-137.TONG Ming, FENG Yutao, LUO Yonghao. Study on the characteristics and pollutant emission of municipal sludge mixed with coal[J]. Environmental Engineering, 2018,36(3):133-137.
- [41]李帅英,周虹光,李文杰,等.燃煤电厂城市废弃物前置干燥炭化处置技术小型化工业应用[J].热力发电,2022, 51(6):96-101.LI Shuaiying, ZHOU Hongguang, LI Wenjie, et al. Smallscale industrial application of pre-dried charring disposal technology for municipal waste from coal-fired power plants[J]. Thermoelectricity, 2022, 51(6):96-101.
- [42]龚旭,王贤,张敏.污泥处置之道-污泥干化协同发电技术[J].净水技术, 2016, 35(A01):75-77.GONG Xu, WANG Xian, ZHANG Ming. Sludge disposal:sludge drying and co-generation technology[J].Water Purification Technology, 2016, 35(A01):75-77.
- [43]中国环境保护产业协会. AO干法脱硫脱硝协同技术在上海青浦热电成功应用[J].中国环保产业, 2018(4):74.China Environmental Protection Industry Association.Successful application of AO dry desulfurization and denitrification synergistic technology in Shanghai Qingpu Cogeneration[J]. China environmental protection industry, 2018(4):74.
- [44]陈雪芹,梁玲.节能减排:设备管理的重中之重——浙江省嘉兴新嘉爱斯热电有限公司设备管理经验浅析[J].中国设备工程, 2015(7):12-15.CHEN Xueqin, LIANG Ling. Energy saving and emission reduction:the top priority of equipment management-an analysis of the experience of equipment management of Jiaxing Xinjiaaishi Thermal Power Co. in Zhejiang Province[J]. China Equipment Engineering, 2015(7):12-15.
- [45] BARBOSA R, LAPA N, LOPES H, et al. Stabilization/solidification of fly ashes and concrete production from bottom and circulating ashes produced in a power plant working under mono and co-combustion conditions[J]. Waste Management, 2011, 31(9-10):2009-2019.
- [46]刘蕴芳,滕建标,苏耀明,等.煤粉炉掺烧干化污泥的污染物排放研究[J].环境工程学报, 2014(11):4969-4976.LIU Yunfang, TENG Jianbiao, SU Yaoming, et al. Study of pollutant emissions from pulverized coal furnace blending with dried sludge[J]. Journal of Environmental Engineering, 2014(11):4969-4976.
- [47]葛江,郭义杰,吴浪,等.烟煤与污泥混烧过程中重金属As、Zn和Cr的迁移规律和灰渣的浸出特性[J].广东电力, 2017, 30(4):37-42.GE Jiang, GUO Yijie, WU Lang, et al. Migration patterns of heavy metals As, Zn and Cr and leaching characteristics of ash during the mixing of bituminous coal and sludge[J].Guangdong Electric Power, 2017, 30(4):37-42.
- [48]赵晓莉,朱伟,徐德福,等.污泥/煤流化床混烧底灰中的重金属毒性研究[J].南京信息工程大学学报(自然科学版), 2013, 5(3):244-250.ZHAO Xiaoli, ZHU Wei, XU Defu, et al. Toxicity of heavy metals in the bottom ash of sludge/coal fluidized bed mix[J].Journal of Nanjing University of Information Engineering(Natural Science Edition), 2013, 5(3):244-250.
- [49]?MAND L, LECKNER B. Metal emissions from cocombustion of sewage sludge and coal/wood in fluidized bed[J]. Fuel, 2004, 83:1803-1821.
- [50]蒋志坚,曾小强,陈晓平,等.城市污泥流化床焚烧炉飞灰中重金属迁移特性[J].热能动力工程, 2017,32(9):92-98.JIANG Zhijian, ZENG Xiaoqiang, CHEN Xiaoping, et al.Migration characteristics of heavy metals in fly ash from municipal sludge fluidized bed incinerator[J]. Thermal Power Engineering, 2017, 32(9):92-98.
- [51]别如山.垃圾焚烧技术和产品及其在垃圾分类条件下的新进展[J].工业锅炉, 2020(3):1-10.BIE Rushan. Waste incineration technologies and products and their new advances in waste separation conditions[J]. Industrial Boiler, 2020(3):1-10.
- [52] MA W, SHI W, SHI Y, et al. Plasma vitrification and heavy metals solidification of MSW and sewage sludge incineration fly ash[J]. Journal of Hazardous Materials,2020, 408:124809.
- [53]陈冀渝.下水道污泥焚烧灰彩色烧结铺地砖的研制[J].砖瓦, 2020(6):26-29.CHEN Jiyu. Development of colored sintered paving tiles from sewer sludge incineration ash[J]. Brick and Tile,2020(6):26-29.
- [54] KRüGER O, ADAM C. Phosphorus in recycling fertilizers-analytical challenges[J]. Environmental Research, 2017, 155:353-358.