The optimum conditions for methanol conversion to dimethyl ether over modified sulfated zirconia catalysts prepared by different methods

被引：0
|
作者：
Doaa S.EL-DESOUKI [1 ]
Amina H.IBRAHIM [1 ]
Samira M.ABDELAZIM [1 ]
Noha A.K.ABOUL-GHEIT [1 ]
Dalia R.ABDEL-HAFIZAR [2 ]
机构：
[1] Processes Development Department,EPRI
[2] Refining Department,EPRI
来源：
燃料化学学报 | 2021年 / 49卷 / 01期
关键词：
D O I：
暂无
中图分类号：
TQ426 [催化剂（触媒）]; TQ223.24 [];
学科分类号：
080502 ; 081705 ;
摘要：
Sulfated zirconia (SZ) and two promoted 1%Mn/SZ catalysts which have been prepared via sol gel (Mn/SZ-S) and impregnation (Mn/SZ-I) methods were studied.The morphology of the catalysts was characterized by XRD,BET,NH3-TPD,ICP,SEM and FT-IR analysis.The conversion of methanol to dimethyl ether and hydrocarbons was carried out in the temperature range of 120-300 ℃.The Mn/SZ-S showed the highest activity due to the high surface area with suitable acidity.The optimum condition of Mn/SZ-S catalyst was investigated at 200°C and LHSV of 0.02 h-1in a time range from 30 to 210 min.It was found that the total conversion decreased from 80.18% to 53.26% at 210 min.The reusability of this catalyst was studied at the optimum condition up till four cycles for 1 h.The characterization of the reused catalyst showed a significant change in the structure and surface acidity due to the blockage of the surface acid sited by carbonaceous materials.
引用
收藏
页码：63 / 71
页数：9
相关论文
共 50 条
  • [1] The optimum conditions for methanol conversion to dimethyl ether over modified sulfated zirconia catalysts prepared by different methods
    El-Desouki D.S.
    Ibrahim A.H.
    Abdelazim S.M.
    Aboul-Gheit N.A.K.
    Abdel-Hafizar D.R.
    Aboul-Gheit, Noha A.K. (nohakadry3yoa@yahoo.com), 1600, Science Press (49): : 63 - 71
  • [2] The catalytic performance of sulfated zirconia in the dehydration of methanol to dimethyl ether
    Said, Abd El-Aziz A.
    Abd El-Wahab, Mohamed M.
    Abd El-Aal, Mohamed
    JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2014, 394 : 40 - 47
  • [3] Dehydration of methanol to dimethyl ether, ethylene and propylene over silica-doped sulfated zirconia
    Hussain, Syed T.
    Mazhar, M.
    Gul, Sheraz
    Chuang, Karl T.
    Sanger, Alan R.
    BULLETIN OF THE KOREAN CHEMICAL SOCIETY, 2006, 27 (11): : 1844 - 1850
  • [4] The effect of steam on the conversion of dimethyl ether to lower olefins and methanol over zeolite catalysts
    T. I. Batova
    E. Kh. Khivrich
    G. N. Shirobokova
    N. V. Kolesnichenko
    Yu. V. Pavlyuk
    G. N. Bondarenko
    Petroleum Chemistry, 2013, 53 : 383 - 387
  • [5] Kinetic models of methanol and dimethyl ether conversion to olefins over zeolite catalysts (Review)
    S. N. Khadzhiev
    M. V. Magomedova
    E. G. Peresypkina
    Petroleum Chemistry, 2015, 55 : 503 - 521
  • [6] Effective conversion of CO2 to methanol and dimethyl ether over hybrid catalysts
    Jun, KW
    Jung, MH
    Rao, KSR
    Choi, MJ
    Lee, KW
    ADVANCES IN CHEMICAL CONVERSIONS FOR MITIGATING CARBON DIOXIDE, 1998, 114 : 447 - 450
  • [7] Kinetic models of methanol and dimethyl ether conversion to olefins over zeolite catalysts (Review)
    Khadzhiev, S. N.
    Magomedova, M. V.
    Peresypkina, E. G.
    PETROLEUM CHEMISTRY, 2015, 55 (07) : 503 - 521
  • [8] The effect of steam on the conversion of dimethyl ether to lower olefins and methanol over zeolite catalysts
    Batova, T. I.
    Khivrich, E. Kh.
    Shirobokova, G. N.
    Kolesnichenko, N. V.
    Pavlyuk, Yu. V.
    Bondarenko, G. N.
    PETROLEUM CHEMISTRY, 2013, 53 (06) : 383 - 387
  • [9] THE CONVERSION OF METHANOL INTO HYDROCARBONS OVER MODIFIED ZIRCONIA
    NITTA, M
    SAKOH, H
    AOMURA, K
    APPLIED CATALYSIS, 1984, 10 (02): : 215 - 217
  • [10] Modified versions of sulfated zirconia as catalysts for the conversion of xylose to furfural
    Dias, Ana S.
    Lima, Sergio
    Pillinger, Martyn
    Valente, Anabela A.
    CATALYSIS LETTERS, 2007, 114 (3-4) : 151 - 160
12345