典型文献
Elemental mercury(Hg0)removal from coal syngas using magnetic tea-biochar:Experimental and theoretical insights
文献摘要:
Mercury is ranked 3rd as a global pollutant because of its long persistence in the environ-ment.Approximately 65%of its anthropogenic emission(Hg0)to the atmosphere is from coal-thermal power plants.Thus,the Hg0 emission control from coal-thermal power plants is inevitable.Therefore,multiple sorbent materials were synthesized using a one-step py-rolysis method to capture the Hg0 from simulated coal syngas.Results showed,the Hg0 removal performance of the sorbents increased by the citric acid/ultrasonic application.T5CUF0.3 demonstrated the highest Hg0 capturing performance with an adsorption capacity of 106.81 pg/g within 60 min at 200℃under complex simulated syngas mixture(20%CO,20%H2,10 ppmV HCl,6%H2O,and 400 ppmV H2S).The Hg0 removal mechanism was pro-posed,revealing that the chemisorption governs the Hg0 removal process.Besides,the active Hg0 removal performance is attributed to the high dispersion of valence Fe3O4 and lattice oxygen(α)contents over the T5CUF0.3 surface.In addition,the temperature programmed desorption(TPD)and XPS analysis confirmed that H2S/HC1 gases generate active sites over the sorbent surface,facilitating high Hg0 adsorption from syngas.This work represented a facile and practical pathway for utilizing cheap and eco-friendly tea waste to control the Hg0 emission.
文献关键词:
中图分类号:
作者姓名:
Adnan Raza Altaf;Yusuf G.Adewuyi;Haipeng Teng;Gang Liu;Fazeel Abid
作者机构:
School of Chemical Engineering Northwest University,Xi'an 710069,China;Chemical,Biological and Bio Engineering Department,North Carolina Agricultural and Technical State University,Greensboro,NC 27411,USA;State Key Laboratory of Clean Coal-based Energy,China Huaneng Group Clean Energy Research Institute Co.,Ltd.,Changping District,Beijing 102209,China;Department of Information System,Dr Hassan Murad School of Management,University of Management and Technology,Lahore 54770,Pakistan
文献出处:
引用格式:
[1]Adnan Raza Altaf;Yusuf G.Adewuyi;Haipeng Teng;Gang Liu;Fazeel Abid-.Elemental mercury(Hg0)removal from coal syngas using magnetic tea-biochar:Experimental and theoretical insights)[J].环境科学学报(英文版),2022(12):150-161
A类:
rolysis,T5CUF0,ppmV
B类:
Elemental,mercury,Hg0,removal,from,coal,syngas,using,magnetic,tea,biochar,Experimental,theoretical,insights,Mercury,ranked,3rd,global,pollutant,because,its,long,persistence,environ,Approximately,anthropogenic,emission,atmosphere,thermal,power,plants,Thus,control,inevitable,Therefore,multiple,materials,were,synthesized,one,step,py,method,capture,simulated,Results,showed,performance,sorbents,increased,by,citric,acid,ultrasonic,application,demonstrated,highest,capturing,adsorption,capacity,pg,within,under,complex,mixture,HCl,H2O,H2S,mechanism,posed,revealing,that,chemisorption,governs,process,Besides,active,attributed,dispersion,valence,Fe3O4,lattice,oxygen,contents,surface,In,addition,temperature,programmed,desorption,TPD,XPS,analysis,confirmed,HC1,gases,generate,sites,facilitating,This,work,represented,facile,practical,pathway,utilizing,cheap,eco,friendly,waste
AB值:
0.566334
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