Journal of Inorganic Materials, Volume. 36, Issue 1, 101(2021)

Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction

Dongqiang ZHANG... Huihui LU, Na SU, Guixian LI, Dong JI and Xinhong ZHAO* |Show fewer author(s)
Figures & Tables(9)
XRD patterns of SAPO-34 synthesized with different types of seeds
SEM images of samples in the presence of various types of seeds (a) SP34; (b) SP34-RS; (c) SP34-AS0.1; (d) SP34-AS0.01; (e) SP34-AS0.001; (f) SP34-AS0.0001
N2 adsorption/desorption isotherms of SP34, SP34-RS and SP34-ASX (X=0.1, 0.01, 0.001, 0.0001)
NH3-TPD profiles of SP34, SP34-RS and SP34-ASX (X=0.1, 0.01, 0.001, 0.0001)
Methanol conversion over SP34, SP34-RS and SP34-ASX (X=0.1, 0.01, 0.001, 0.0001) catalysts with time-on-stream in the MTO reaction
Relative crystallinity of SAPO-34 synthesized in the presence of various kinds of seed crystals
Pore size distribution of SP34, SP34-RS and SP34-ASX (X=0.1, 0.01, 0.001, 0.0001 mol/L)
Deconvolution of NH3-TPD curves of SP34, SP34-RS and SP34-ASX (X=0.1, 0.01, 0.001, 0.0001 mol/L)
  • Table 1.

    Textural properties, acid amount and catalytic lifetime of different samples in MTO reaction

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    Table 1.

    Textural properties, acid amount and catalytic lifetime of different samples in MTO reaction

    SampleTextual propertiesAcid amount cLifetime/min
    SBET/(m2·g-1)Smic/(m2·g-1)Sext/(m2·g-1)Vmica/(cm3·g-1)Vmesob/(cm3·g-1)WeakMediumand strongTotal
    SP34250681820.0290.3422.775.378.1440
    SP34-RS316291240.1360.0680.862.052.91100
    SP34-AS0.1547530170.2470.0570.972.553.52480
    SP34-AS0.01552532200.2490.0561.423.414.83300
    SP34-AS0.001568553150.2540.0520.852.203.05420
    SP34-AS0.0001568547210.2560.0491.273.154.42330
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Dongqiang ZHANG, Huihui LU, Na SU, Guixian LI, Dong JI, Xinhong ZHAO. Modulation of SAPO-34 Property with Activated Seeds and Its Enhanced Lifetime in Methanol to Olefins Reaction[J]. Journal of Inorganic Materials, 2021, 36(1): 101

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Paper Information

Category: RESEARCH LETTERS

Received: Feb. 8, 2020

Accepted: --

Published Online: Jan. 21, 2021

The Author Email: ZHAO Xinhong (licpzhaoxh@lut.edu.cn)

DOI:10.15541/jim20200059

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