微孔-微孔复合分子筛的结构特征及应用

孙丽媛,张亚飞,巩雁军

Structural Features and Application of Micro-Microporous Composite Zeolites

Li-Yuan SUN,Ya-Fei ZHANG,Yan-Jun GONG

表1 不同反应条件下微孔-微孔复合分子筛的催化性能

Table 1 Catalytic performance of micro-microporous composite zeolites on the different reaction conditions

Sample Reaction Reaction conditions Main products Ref. T/℃ p/MPa WHSV/h-1 Yield or Selectivity Value/% MFI/MEL benzene alkylation 370 0.7 1.0 S(ethylbenzene) 91.5 37 MFI methanol to propylene 450 - - S(propylene) 27.2 107 MFI/MEL 46.9 Pt/TON hydroisomerization of 320 8 1.0 (LHSV) Y(iso-dodecane) ≈ 63.6 108 Pt/MTT n-dodecane ≈ 56.3 Pt/MTT/TON 68.3 MCM-22 LPG aromatization 400 0.5 2.0 S(aromatics) 65.2 95 ZSM-35 67.7 MCM-22&ZSM-35 24.5 Beta 2-butylene cracking 490 0.1 1.0 S(propylene) 12.1% (w) 99 SAPO-11 21.4% (w) SAPO-11 + Beta 23.1% (w) SAPO-11&Beta 40.2% (w) ZSM-5 + SAPO-11 gasoline hydroupgrading 370 2 2.0 (LHSV) Y(i-paraffins) 40.2% (?) 100 ZSM-5&SAPO-11 45.3% (?) Y + Beta VGO hydrocracking 385 15.7 1.5 Y(middle distillate) 50.1 109 Y&Beta 58.4 ZSM-5 cracking of mixed C4 575 0.1 - Y(C2= + C3=) 33.3 110 ZSM-5&ZSM-57 40.9 ZSM-5 + AlPO4-5 66.1 ZSM-5?AlPO4-5 heavy oil cracking 500 - 184 Y(C2= -C5=) 70.7 111