欢迎登录材料期刊网

材料期刊网

高级检索

主要研究活性炭孔隙结构对苯并噻吩脱附活化能及吸附性能的影响.使用ASAP 2010测定了3种椰壳制活性炭SY-6、SY-13和SY-19的BET比表面及其孔隙结构,采用程序升温脱附技术(TPD)测定了苯并噻吩在3种活性炭上的脱附活化能,用静态吸附法进行了苯并噻吩在不同活性炭上的吸附等温线,并讨论了活性炭孔隙结构对苯并噻吩脱附活化能及吸附性能的影响.结果表明,3种活性炭SY-6、SY-13和SY-19的比表面积分别为1106、1070和689m2/g,其平均孔径分别为1.96、2.58和2.16nm.苯并噻吩在SY-6、SY-19和SY-13活性炭上的脱附活化能依次为58.84、53.02和42.57kJ/mol,3种活性炭对苯并噻吩吸附容量的大小依次为SY-6>SY-19>SY-13.活性炭平均孔径越小,其表面对苯并噻吩的作用力越大,苯并噻吩在其表面上的脱附活化能越大.Freundlich模型能够较好的来描述苯并噻吩在活性炭上的吸附.

参考文献

[1] Song Chunshan .[J].alysis Today,2003,86:211-263.
[2] Zheng Jiahui .[J].Petroleum& Petrochemical Today,2003,11(01):4-6.
[3] Yang R T;Takahashi A;Yang F H .[J].Industrial and Engineering Chemistry Research,2001,40(26):6236-6239.
[4] Yang RT.;Hernandez-Maldonado AJ.;Yang FH. .Desulfurization of transportation fuels with zeolites under ambient conditions[J].Science,2003(5629):79-81.
[5] Arturo J .[J].Applied Catalysis B:Environmental,2005,56:111-126.
[6] Song C S;Ma X L .[J].Applied Catalysis B:Environmental,2003,41:207-238.
[7] Velu S;Ma X L;Song C S et al.[J].Energy and Fuels,2005,19:1116-1125.
[8] Ma X L;Song C S .[J].Catalysis Today,2002,77:107-108.
[9] Bakr A;Salem S H .[J].Industrial and Engineering Chemistry Research,1994,33:336-340.
[10] Lee Sheldon H D;Kumar R .[J].Technology(Elmsford N Y),2002,26:247-258.
[11] Arturo J .[J].Industrial and Engineering Chemistry Research,2003,42:3103-3110.
[12] Yu Moxin;LiZhong;Xia Qibin et al.[J].Journal of Chemical Industry and Engineering,2006,57:1943-1948.
[13] LI Zhong,Wang Hongjuan,XI Hongxia,Xu Kefeng,WEN Jun.ESTIMATION OF ACTIVATED ENERGY OF DESORPTION OF n-HEXANE ON ACTIVATED CARBONS BY TPD TECHNIQUE[J].反应性高分子(英文版),2001(02):113-120.
[14] Richard I M.Principles of adsorption and reaction on solid surfaces[M].New York:Awiley-Interscience Publication,1996:482-580.
[15] LI Zhong;WANG Hongjuan et al.[J].Adsorption Science and Technology,2003,21:125-133.
[16] Wu Yongwen;Li Zhong;Xi Hongxia et al.[J].Journal of Chemical Industry and Engineering,2003,54(11):1462-1467.
[17] Xie Lanying;Li Zhong;Xi Hongxia et al.[J].Journal of Chemical Industry and Engineering,2002,53(08):797-802.
[18] Gregg S J;Sing K S W.Adsorption,Surface Area and Porosity[M].London,UK:Academic Press,1982
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%