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《Coal Conversion》 2010-02
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STUDY ON MODIFICATION OF STRUCTURE AND PROPERTY OF CALCIUM-BASED FGD SORBENT WITH PEG

Chen Jianhua1 Chen Wenhua1,2 and Zhao Junfeng2(1.College of Material Science and Engineering,Nanjing University of Technology,210009 Nanjing;2.Jiangsu Laboratory of Advanced Functional Materials,Changshu Institute of Technology,215500 Changshu,Jiangsu)  
In the hydrated process,calcium-based flue gas desulfurization sorbent has the poor dispersion,the small surface area and ease to get group.The hydrated products were modified by adding different amount PEG was studied in this paper.The results showed that when the hydration period of 30 min and the water to lime molar ratio of 1.4:1,the optimal adding amount of PEG600 was 3%,the particle size of hydrated products was uniform,an average particle size was 9.4 μm,and the surface area was 21.6 m2/g.XRD,SEM and FT-IR showed that lime was hydrated completely,lime slaking rate was high,and the dispersion was improved.In addition,calcium hydroxide was coated with PEG.
【Fund】: 江苏省新型功能材料重点实验室开放基金资助项目(06KFJJ001)
【CateGory Index】: TQ075.1
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