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脱硅重组装法制备 ZSM-5/MCM-41 复合分子筛及其催化裂解性能研究

脱硅重组装法制备 ZSM-5/MCM-41 复合分子筛及其催化裂解性能研究. CTAB Crystallize. Alkali Treatment. 报告人：那金丹 指导 老师：王莅 教授. 目前工作. 2011 年实验总结. 计划与展望. 报告内容. 2011 年实验总结. 椭圆形孔，直通道 0.51×0.53nm. 圆形 孔，弯曲通道 0.53×0.56nm. ≥ 1.5nm. ZSM-5. MCM-41. 优点：比表面积大 稳性 , 活性好 择形性 缺点：孔径小 阻碍扩散. 优点：孔径均一 , 可调 缺点：孔壁不定型 稳定性 ,

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脱硅重组装法制备 ZSM-5/MCM-41 复合分子筛及其催化裂解性能研究

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  1. 脱硅重组装法制备ZSM-5/MCM-41复合分子筛及其催化裂解性能研究脱硅重组装法制备ZSM-5/MCM-41复合分子筛及其催化裂解性能研究 CTAB Crystallize Alkali Treatment 报告人：那金丹 指导老师：王莅 教授

  2. 目前工作 2011年实验总结 计划与展望 报告内容

  3. 2011年实验总结 椭圆形孔，直通道 0.51×0.53nm 圆形孔，弯曲通道 0.53×0.56nm ≥1.5nm ZSM-5 MCM-41 优点：比表面积大 稳性, 活性好 择形性 缺点：孔径小 阻碍扩散 优点：孔径均一,可调 缺点：孔壁不定型 稳定性, 酸性差

  4. ZSM-5/MCM-41制备过程 主要工作： CTAB Crystallize Alkali Treatment 变量 影响 Amount of Silica source NaOH Concentration Crystallization Time Thickness and PSD of MCM-41 shell

  5. Effect of NaOH Concentration XRD Fig.1 (A) Small-angle XRD patterns and (B) wide-angle XRD patterns of the ZSM-5/MCM-41 composite

  6. Effect of NaOH Concentration BET & PSD Table 1 Physicochemical properties of ZSM-5 and Fig. 2 N2 adsorption-desorption isotherms (A) and pore size distributions (B) of ZSM-5 (a), ZMC-OH1.0-C12 (b), ZMC-OH1.5-C12 (c) and ZMC-OH- 2.0 -C12 (d)

  7. Effect of Crystallization Time Fig.3 (A) N2 adsorption-desorption isotherms and (B) pore size distributions of a: ZSM-5, b: ZMC-OH1.5-C12, c: ZMC-OH1.5-C24, d: ZMC-OH1.5–C36, e: ZMC-OH1.5–C48, f: ZMC-OH1.5–C60, g: ZMC-OH1.5–C72

  8. TEM images b a 15 nm c d 50 nm 18nm Fig.4 TEM images for a: ZSM-5, b: ZMC-OH1.5-C12, c: ZMC-OH1.5-C24, d: ZMC-OH1.5–C48

  9. Catalytic Cracking of n-dodecane Temperature: 550 0C Pressure: 4MPa Fig.5 Conversion versus TOS for coatings of ZSM-5, ZSM-5/MCM-41and desilicated ZSM-5

  10. 目前工作：不同模板剂制备ZSM-5/MCM-41复合分子筛目前工作：不同模板剂制备ZSM-5/MCM-41复合分子筛 Fig. 6 (A) Small-angle XRD patterns and (B) wide-angle XRD patterns of the ZSM-5/MCM-41 composite prepared with different templates

  11. N2-adsorption A B D Fig. 7 N2 adsorption-desorption isotherms (A) and pore size distributions (B) of ZSM-5/MCM-41 samples Fig. 8 pore size distributions of ZSM-5 /MCM-41 samples with single template (C) and dual-template (D)

  12. BET数据总结

  13. TEM images of samples C10TAB C12TAB C14TAB C12 & C16 C16TAB C10 & C16

  14. 谢谢！ 请提出批评指正

  15. a b c d 50 nm 50 nm

  16. e

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