藻类生物质与煤混烧过程氮硫污染物的排放与转化特性
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摘要
为研究煤与藻类生物质混合燃烧过程中NO和SO_2的排放与转化特性,将华亭煤和马尾藻以不同掺混比进行混合燃烧实验。结果表明:将华亭煤和马尾藻混燃可有效降低典型污染物的排放;与纯华亭煤相比,添加25%马尾藻和50%马尾藻后NO转化率分别降低了4.37%和44.49%,SO_2转化率分别降低了32.16%和53.81%。
To explore the emission and conversion characteristics of NO and SO_2 from co-firing of algae biomass and coal, a series of co-firing tests were conducted by blending the Huating coal with algae biomass in different ratios. Results show that the co-firing of coal and algae biomass could effectively reduce the emission of typical pollutants. Compared with burning pure coal, the NO conversion rate in burning the coal mixture containing 25% and 50% algae biomass could be accordingly reduced by 4.37% and 44.49%, while the SO_2 conversion rate reduced by 32.16% and 53.81%, respectively.
To explore the emission and conversion characteristics of NO and SO_2 from co-firing of algae biomass and coal, a series of co-firing tests were conducted by blending the Huating coal with algae biomass in different ratios. Results show that the co-firing of coal and algae biomass could effectively reduce the emission of typical pollutants. Compared with burning pure coal, the NO conversion rate in burning the coal mixture containing 25% and 50% algae biomass could be accordingly reduced by 4.37% and 44.49%, while the SO_2 conversion rate reduced by 32.16% and 53.81%, respectively.
引文
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[3]曹希.煤泥和玉米秸杆混合燃烧特性研究[D].太原:山西大学,2016.
[4]王宪红.动力用煤混烧生物质燃烧特性及污染物排放特性研究[D].济南:山东大学,2010.
[5]寿恩广,李诗媛,任强强,等.生物质与煤富氧混合燃烧特性研究[J].可再生能源,2014,32(10):1551-1558.SHOU Enguang,LI Shiyuan,REN Qiangqiang,et al.Study on oxy-fuel combustion characteristics of biomass and coal blending[J].Renewable Energy Resources,2014,32(10):1551-1558.
[6]SAMI M,ANNAMALAI K,WOOLDRIDGE M.Co-firing of coal and biomass fuel blends[J].Progress in Energy and Combustion Science,2001,27(2):171-214.
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[8]刘旺,赵兵涛,张航.藻类生物质燃烧NOx的排放特性与N转化机制[J].动力工程学报,2016,36(4):294-299,325.LIU Wang,ZHAO Bingtao,ZHANG Hang.NOxemission characteristics and nitrogen conversion mechanism in algae biomass combustion processes[J].Journal of Chinese Society of Power Engineering,2016,36(4):294-299,325.
[9]王爽,姜秀民,王宁,等.海藻类生物质的热解和燃烧特性的研究[J].动力工程,2009,29(6):596-601.WANG Shuang,JIANG Xiumin,WANG Ning,et al.Study on pyrolysis and combustion characteristics of seaweed biomass[J].Journal of Power Engineering,2009,29(6):596-601.
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[11]CHEN Chunxiang,CHEN Feng,CHENG Zheng,et al.Emissions characteristics of NOx and SO2in the combustion of microalgae biomass using a tube furnace[J].Journal of the Energy Institute,2017,90(5):806-812.
[12]YANIK J,DUMAN G,KARLSTRM O,et al.NO and SO2 emissions from combustion of raw and torrefied biomasses and their blends with lignite[J].Journal of Environmental Management,2018,227:155-161.
[13]王爽,姜秀民,王谦,等.不同工况下条浒苔的快速热裂解制取生物油试验研究[J].热能动力工程,2013,28(2):202-206.WANG Shuang,JIANG Xiuming,WANG Qian,et al.Experiment study of the quick pyrolysis of enteromorpha clathrata to prepare biooil under various conditions[J].Journal of Engineering for Thermal Energy and Power,2013,28(2):202-206.
[14]刘豪,邱建荣,吴昊,等.生物质和煤混合燃烧污染物排放特性研究[J].环境科学学报,2002,22(4):484-488.LIU Hao,QIU Jianrong,WU Hao,et al.Study on the pollutant emission characteristics of co-firing biomass and coal[J].Acta Scientiae Circumstantiae,2002,22(4):484-488.
[15]王爽.海藻生物质热解与燃烧的试验与机理研究[D].上海:上海交通大学,2010.
[16]PALLARS J,GIL A,CORTS C,et al.Numerical study of co-firing coal and cynara cardunculus in a350MWe utility boiler[J].Fuel Processing Technology,2009,90(10):1207-1213.
[17]周芳,胡明辅,周国平.生物质能的开发利用与技术进展[J].能源与环境,2007(4):49-51,54.ZHOU Fang,HU Mingfu,ZHOU Guoping.Development,utilization and technological progress of biomass energy[J].Energy and Environment,2007(4):49-51,54.