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Methanol to propylene: the effect of iridium and iron incorporation on the HZSM-5 catalyst

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Abstract

The effect of iridium and iron impregnation of HZSM-5 zeolite on the methanol to propylene reaction (MTP) was investigated. The selectivities of propylene and other hydrocarbons, and the conversion of methanol were compared by performing MTP in a small pilot plant. The results indicate that HZSM-5 zeolite modified by iron and iridium increased propylene selectivity by 6.3% and 8%, respectively. The selectivity of propylene was higher for Ir/H-ZSM-5 than for Fe/H-ZSM-5, where Fe/H-ZSM-5 was more stable than Ir/H-ZSM-5. Analytic techniques, including X-ray diffraction, BET surface area, temperature-programmed desorption of ammonia, and inductively coupled plasma atomic emission spectroscopy, were used to characterize the modified zeolites as well as the parent zeolites.

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Authors and Affiliations

  1. National Petrochemical Company, Petrochemical Research & Technology Company (NPC-RT), Tehran, 14358-84711, Iran

    Alireza Mohammadrezaei & Mousa Asadi

  2. Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, 11365-9465, Iran

    Sadegh Papari

  3. Department of Chemical Engineering, Amirkabir University of Technology, Tehran, 15914, Iran

    Abas Naderifar & Reza Golhosseini

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  1. Alireza Mohammadrezaei
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  2. Sadegh Papari
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  3. Mousa Asadi
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  4. Abas Naderifar
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  5. Reza Golhosseini
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Correspondence to Sadegh Papari.

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Mohammadrezaei, A., Papari, S., Asadi, M. et al. Methanol to propylene: the effect of iridium and iron incorporation on the HZSM-5 catalyst. Front. Chem. Sci. Eng. 6, 253–258 (2012). https://doi.org/10.1007/s11705-012-0902-4

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  • DOI: https://doi.org/10.1007/s11705-012-0902-4

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