The importance of heat effects in the methanol to hydrocarbons reaction over ZSM-5: on the role of mesoporosity on catalyst performance

Interpretation of catalytic performance during the MTH process is hampered by heat transport phenomena. We demonstrate that large temperature rises can occur during fixed bed labscale catalyst testing of ZSM-5, even when a large catalyst bed dilution is applied. Formation of mesopores in ZSM-5 leads to partial mitigation of these effects because of a lower generation of heat per unit catalyst volume and weakening of the zeolite acidity.

[1]  F. Kapteijn,et al.  Methanol-to-olefins process over zeolite catalysts with DDR topology: effect of composition and structural defects on catalytic performance , 2016 .

[2]  B. Weckhuysen,et al.  Simultaneous coking and dealumination of zeolite H-ZSM-5 during the transformation of chloromethane into olefins , 2016 .

[3]  P. Beato,et al.  Kinetics of Zeolite Dealumination: Insights from H-SSZ-13 , 2015 .

[4]  Glenn J. Sunley,et al.  Enhanced catalytic performance of zeolite ZSM-5 for conversion of methanol to dimethyl ether by combining alkaline treatment and partial activation , 2015 .

[5]  Samuel L. C. Moors,et al.  How zeolitic acid strength and composition alter the reactivity of alkenes and aromatics towards methanol , 2015 .

[6]  B. Shanks,et al.  Insights into the Hydrothermal Stability of ZSM-5 under Relevant Biomass Conversion Reaction Conditions , 2015 .

[7]  A. Veen,et al.  Coke formation and deactivation pathways on H-ZSM-5 in the conversion of methanol to olefins , 2015 .

[8]  Zhongmin Liu,et al.  Methanol to Olefins (MTO): From Fundamentals to Commercialization , 2015 .

[9]  F. Kapteijn,et al.  Structuring catalyst and reactor – an inviting avenue to process intensification , 2015 .

[10]  S. Mitchell,et al.  Impact of pore connectivity on the design of long-lived zeolite catalysts. , 2015, Angewandte Chemie.

[11]  F. Deng,et al.  Hydrothermal treatment on ZSM-5 extrudates catalyst for methanol to propylene reaction: Finely tuning the acidic property , 2015 .

[12]  S. Mitchell,et al.  Effects of Binders on the Performance of Shaped Hierarchical MFI Zeolites in Methanol-to-Hydrocarbons , 2014 .

[13]  J. Pérez‐Ramírez,et al.  Mesopore quality determines the lifetime of hierarchically structured zeolite catalysts , 2014, Nature Communications.

[14]  Maxim A. Nasalevich,et al.  Insights into the Catalytic Performance of Mesoporous H‐ZSM‐5‐Supported Cobalt in Fischer–Tropsch Synthesis , 2014 .

[15]  S. Mitchell,et al.  Superior Mass Transfer Properties of Technical Zeolite Bodies with Hierarchical Porosity , 2014 .

[16]  Freek Kapteijn,et al.  Hierarchical H-ZSM-5-supported cobalt for the direct synthesis of gasoline-range hydrocarbons from syngas: Advantages, limitations, and mechanistic insight , 2013 .

[17]  H. Schulz,et al.  Pools and Constraints in Methanol Conversion to Olefins and Fuels on Zeolite HZSM5 , 2013, Topics in Catalysis.

[18]  Jörg Kärger,et al.  Mass transfer in mesoporous materials: the benefit of microscopic diffusion measurement. , 2013, Chemical Society reviews.

[19]  Wenzhang Wu,et al.  Modeling of diffusion and reaction in monolithic catalysts for the methanol-to-propylene process , 2013 .

[20]  Wenzhang Wu,et al.  Methanol conversion to olefins (MTO) over H-ZSM-5: Evidence of product distribution governed by methanol conversion , 2013 .

[21]  Pravesh Kumar,et al.  Single-Event Microkinetics for Methanol to Olefins on H-ZSM-5 , 2013 .

[22]  K. Lillerud,et al.  Conversion of methanol to hydrocarbons: how zeolite cavity and pore size controls product selectivity. , 2012, Angewandte Chemie.

[23]  A. Bhan,et al.  Tuning the selectivity of methanol-to-hydrocarbons conversion on H-ZSM-5 by co-processing olefin or aromatic compounds , 2012 .

[24]  J. Bilbao,et al.  Olefin production by cofeeding methanol and n‐butane: Kinetic modeling considering the deactivation of HZSM‐5 zeolite , 2011 .

[25]  W. Schwieger,et al.  Zeolitic Materials with Hierarchical Porous Structures , 2011, Advanced materials.

[26]  Hans Schulz,et al.  “Coking” of zeolites during methanol conversion: Basic reactions of the MTO-, MTP- and MTG processes , 2010 .

[27]  Zhixian Gao,et al.  Methanol to Olefin over Ca-Modified HZSM-5 Zeolites , 2010 .

[28]  R. Ryoo,et al.  Effect of mesoporosity against the deactivation of MFI zeolite catalyst during the methanol-to-hydrocarbon conversion process , 2010 .

[29]  O. Terasaki,et al.  Stable single-unit-cell nanosheets of zeolite MFI as active and long-lived catalysts , 2009, Nature.

[30]  U. Nowak,et al.  Radial heat transfer in fixed-bed packing with small tube/particle diameter ratios , 2009 .

[31]  C. Christensen,et al.  Hierarchical zeolites: enhanced utilisation of microporous crystals in catalysis by advances in materials design. , 2008, Chemical Society reviews.

[32]  K. Lillerud,et al.  Methanol to gasoline over zeolite H-ZSM-5: Improved catalyst performance by treatment with NaOH , 2008 .

[33]  Xinwen Guo,et al.  Characterization and catalytic alkylation of hydrothermally dealuminated nanoscale ZSM-5 zeolite catalyst , 2008 .

[34]  F. Kapteijn,et al.  Direct demonstration of enhanced diffusion in mesoporous ZSM-5 zeolite obtained via controlled desilication. , 2007, Journal of the American Chemical Society.

[35]  F. Kapteijn,et al.  Catalyst performance testing: Radial and axial dispersion related to dilution in fixed-bed laboratory reactors , 2002 .

[36]  Freek Kapteijn,et al.  The six-flow reactor technology: A review on fast catalyst screening and kinetic studies , 2000 .

[37]  Michael Stöcker,et al.  Methanol-to-hydrocarbons: catalytic materials and their behavior 1 Dedicated to my wife Wencke Ophau , 1999 .

[38]  C. A. Emeis.  Determination of integrated molar extinction coefficients for infrared absorption bands of pyridine adsorbed on solid acid catalysts , 1993 .

[39]  G. Froment,et al.  Production of light alkenes from methanol on ZSM-5 catalysts , 1991 .

[40]  H. Pfeifer,et al.  Magic-angle-spinning NMR studies of acid sites in zeolite H-ZSM-5 , 1991 .

[41]  Clarence Dayton Chang,et al.  The conversion of methanol and other O-compounds to hydrocarbons over zeolite catalysts: II. Pressure effects , 1977 .

[42]  D. Mears,et al.  Diagnostic criteria for heat transport limitations in fixed bed reactors , 1971 .