Title: Aromatisation and desulphurisation of liquefied petroleum gas over Zn-containing zeolite catalysts modified by transition metals

Authors: Tuktin Balga Tuktievich; Shapovalova Larissa Borisovna; Nurgaliyev Nurzhan Nurlybekovich; Tenizbayeva Aliya Serikovna; Bagasharova Bates Muhtarovna

Addresses: Laboratory of Engine Fuels, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev str., Almaty, 050010, Kazakhstan ' Laboratory of Engine Fuels, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev str., Almaty, 050010, Kazakhstan ' Laboratory of Engine Fuels, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev str., Almaty, 050010, Kazakhstan ' Laboratory of Engine Fuels, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev str., Almaty, 050010, Kazakhstan ' Laboratory of Engine Fuels, D.V. Sokolsky Institute of Fuel, Catalysis and Electrochemistry, 142, Kunaev str., Almaty, 050010, Kazakhstan

Abstract: In this paper, treatment of liquefied petroleum gas (LPG) over Zn-containing zeolite catalysts modified by Mn, Cu and Fe was studied. The authors investigated catalytic activity in the aromatisation and desulphurisation reactions of propane-propylene and propane-butane fractions (PPF and PBF respectively). It was found that the feedstock composition did not actually affect conversion at elevated temperatures (550–600°C); however, yield of the resulting aromatic hydrocarbons was higher when using PPF. The activity of catalysts mainly depended on the structure and state of active sites and reaction conditions. During PPF desulphurisation, the Zn-Mn-ZSM-Al₂O₃ catalyst was the most active, while the Zn-Fe-ZSM-Al₂O₃ catalyst showed the highest activity with the PBF. Physical and chemical characteristics of the obtained catalysts were studied using various methods. [Received: September 20, 2017; Accepted: March 16, 2018]

Keywords: catalysts; zeolite; aromatisation; desulphurisation; liquefied petroleum gas; LPG.

DOI: 10.1504/IJOGCT.2020.105456

International Journal of Oil, Gas and Coal Technology, 2020 Vol.23 No.2, pp.186 - 198

Received: 20 Sep 2017
Accepted: 16 Mar 2018
Published online: 02 Mar 2020 *

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