Study of Methanol Conversion to Olefin and Study of Lanthanum Loading and Si/Al Ratio Parameters on HZSM-5 Catalyst

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Amiri Farhad; ZAREI TALEB

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Journal: Nashrieh Shimi va Mohandesi Shimi Iran Year:2019 | Volume:38 | Issue:1 (91) Page(s): 111-123

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Title

Study of Methanol Conversion to Olefin and Study of Lanthanum Loading and Si/Al Ratio Parameters on HZSM-5 Catalyst

Author(s)

Amiri Farhad | ZAREI TALEB | Issue Writer Certificate

Keywords

MethanolQ2

OlefinQ1

Catalyst HZSM-5Q1

LanthanumQ1

Si/Al ratioQ1

Abstract

Recently, catalytic technologies for the conversion of Methanol to Olefins have been very much considered. In the present paper, the effect of Lanthanum loading parameters and Si/Al ratios at different temperatures on the catalytic function of HZSM-5 in the Methanol-Olefin conversion process was investigated. In this paper, the catalytic base of HZSM-5 with different Si/Al ratios was modified using the Lanthanum metal and wet impregnation method. After loading of Lanthanum metal by wet impregnation, the modified catalysts were subjected to XRD, SEM, BET, and FT-IR analysis for accurate determination of their specification and evaluation. The results of XRD and FT-IR analysis showed that the addition of Lanthanum metal to HZSM-5 zeolite did not cause structural damage. The structure after the addition of Lanthanum metal still had high crystallinity. The design of the Box-Behnken test was used to investigate the effect of Lanthanum parameters, Si/Al ratio, and temperature, and investigate the effect of interactions between them for the production of ethylene and propylene in the Methanol-Olefin process. For this purpose, loading of Lanthanum in the range of 0-10% by weight, the Si/Al ratio in the range of 180-160 ° C, and temperature in the range of 350-450 ° C were used as input variables of the Box-Behnken method. Using the results of the design of the Box-Behnken test, it was found that the highest ethylene yield was achieved on a catalyst that was at the highest level of loading of Lanthanum, low Si/Al ratio and high temperature. For optimum propylene production, there was an optimal mode for three variables: Si/Al ratio, temperature, and loading rate of Lanthanum, which initially increased the propylene yield and then decreased with increasing of these variables.

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APA: Copy

Amiri, Farhad, & ZAREI, TALEB. (2019). Study of Methanol Conversion to Olefin and Study of Lanthanum Loading and Si/Al Ratio Parameters on HZSM-5 Catalyst. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), 38(1 (91) ), 111-123. SID. https://sid.ir/paper/26079/en

Vancouver: Copy

Amiri Farhad, ZAREI TALEB. Study of Methanol Conversion to Olefin and Study of Lanthanum Loading and Si/Al Ratio Parameters on HZSM-5 Catalyst. NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)[Internet]. 2019;38(1 (91) ):111-123. Available from: https://sid.ir/paper/26079/en

IEEE: Copy

Farhad Amiri, and TALEB ZAREI, “Study of Methanol Conversion to Olefin and Study of Lanthanum Loading and Si/Al Ratio Parameters on HZSM-5 Catalyst,” NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN), vol. 38, no. 1 (91) , pp. 111–123, 2019, [Online]. Available: https://sid.ir/paper/26079/en

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