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Methanol-to-propylene process: Perspective of the most important catalysts and their behavior

Chinese Journal of Catalysis 2016年第3期37卷 325-339页

作者： M.Khanmohammadi Sh.Amani a.bagheri garmarudi A.Niaeib 霍梅尼国际大学科学学院化学系大不里士大学化工与应用化学系

The methanol-to-propylene （MTP） process is a route of methanol conversion to hydrocarbons, which is in high demand because of limited oil resources. The present paper discusses the effect of catalyst structure on the MTP process conditions, and the role of different zeolite factors, such as acidity, crystal size, mesoporosity, and topology, on the activity and selectivity of the MTP reaction.

关键词： Methanol-to-propylene process ZSM-5 zeolite Catalysis

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Introduction of table sugar as a soft second template in ZSM-5 nanocatalyst and its effect on product distribution and catalyst lifetime in methanol to gasoline conversion

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Journal of Energy Chemistry 2018年第2期27卷 582-590页

作者： Peyman Noor Mohammadreza Khanmohammadi Behrooz Roozbehani Fereydoon Yaripour Amir bagheri garmarudi Chemistry Department Faculty of Science Imam Khomeini International University *** Qazvin Iran Research Center of Petroleum University of Technology *** Abadan Iran Catalyst Research Croup Petrochemical Research and Technology Company National Petrochemical Company *** Tehran Iran

Methanol to gasoline reaction was investigated on two prepared ZSM-5 catalysts. The first one was a conventional catalyst denoted as ZSM-5（C） and the other was a hierarchical catalyst-ZSM-5（S） which was prepared by incorporation of table sugar in catalyst gel during the synthesis procedure. The catalysts were characterized by FTIR, XRD, FE-SEM, N2 adsorption-desorption, NH3-TPD and TGA analytical technics. The proposed material showed pore modification as well as acidity moderating properties in ZSM-5 catalyst. The methanol to gasoline reaction was conducted in a fixed bed reactor with a WHSV of 1.5 *** conversions, gasoline yield and selectivity in production for the synthesized catalysts were determined by gas chromatography method. The sugar modified catalyst converted more methanol than the conventional one and an enhancement in catalyst’s life time was observed. The selectivity to aromatics and durene were reduced compared to the conventional catalyst, so the gasoline quality was also further improved. The coking rate of catalysts was calculated employing TGA method. A reduction in coking rate and an increase in coke capacity of the modified catalyst were observed.

关键词： MTG ZSM-5 catalyst Methanol to gasoline Methanol conversion Deactivation

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