Highly Selective and Stable Production of Aromatics via High-Pressure Methanol Conversion

Tuiana Shoinkhorova; Tomás Cordero-Lanzac; Adrian Ramirez; Sang-ho Chung; Abhay Dokania; Javier Ruiz-Martinez; Jorge Gascon

doi:10.1021/acscatal.0c05133

Highly Selective and Stable Production of Aromatics via High-Pressure Methanol Conversion

Tuiana Shoinkhorova, Tomás Cordero-Lanzac, Adrian Ramirez, Sang-ho Chung, Abhay Dokania, Javier Ruiz-Martinez, Jorge Gascon

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

In the current petrochemical market, the global demand for aromatics, especially benzene, toluene, and xylenes (BTXs), has increased sharply. The methanol-to-aromatic conversion (MTA) over ZSM-5 is among the most promising routes to satisfy this ever-growing demand. In this work, we show that highpressure operation during MTA leads to a large increase in aromatic selectivity while enhancing stability on-stream. Stable operation along with a very high selectivity to aromatics (up to 50%, with 20% BTXs) can be achieved on a commercial high-silica ZSM-5 (SiO2/Al2O3 = 280) at 400 °C, 30 bar total pressure, and WHSV = 8 h−1. The high partial pressure of primary olefins and the promoted methanol-induced hydrogen-transfer pathway result in an exponential increase in aromatization, while the high partial pressure of steam generated via dehydration of methanol leads to in situ coke removal and, therefore, to a much slower deactivation of the zeolite

Original language	English (US)
Pages (from-to)	3602-3613
Number of pages	12
Journal	ACS Catalysis
DOIs	https://doi.org/10.1021/acscatal.0c05133
State	Published - Mar 5 2021

Bibliographical note

KAUST Repository Item: Exported on 2021-03-08
Acknowledgements: Funding for this work was provided by King Abdullah University of Science and Technology (KAUST). The authors wish to acknowledge and thank Sandra Ramirez Cherbuy for the illustration of the graphical abstract.

ASJC Scopus subject areas

Catalysis

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10.1021/acscatal.0c05133

https://repository.kaust.edu.sa/bitstream/10754/667907/1/Shoinkhorova%20et%20al_corrected.pdf

Cite this

@article{eeb9458c869541f69df4943c084575f0,

title = "Highly Selective and Stable Production of Aromatics via High-Pressure Methanol Conversion",

abstract = "In the current petrochemical market, the global demand for aromatics, especially benzene, toluene, and xylenes (BTXs), has increased sharply. The methanol-to-aromatic conversion (MTA) over ZSM-5 is among the most promising routes to satisfy this ever-growing demand. In this work, we show that highpressure operation during MTA leads to a large increase in aromatic selectivity while enhancing stability on-stream. Stable operation along with a very high selectivity to aromatics (up to 50%, with 20% BTXs) can be achieved on a commercial high-silica ZSM-5 (SiO2/Al2O3 = 280) at 400 °C, 30 bar total pressure, and WHSV = 8 h−1. The high partial pressure of primary olefins and the promoted methanol-induced hydrogen-transfer pathway result in an exponential increase in aromatization, while the high partial pressure of steam generated via dehydration of methanol leads to in situ coke removal and, therefore, to a much slower deactivation of the zeolite",

author = "Tuiana Shoinkhorova and Tom{\'a}s Cordero-Lanzac and Adrian Ramirez and Sang-ho Chung and Abhay Dokania and Javier Ruiz-Martinez and Jorge Gascon",

note = "KAUST Repository Item: Exported on 2021-03-08 Acknowledgements: Funding for this work was provided by King Abdullah University of Science and Technology (KAUST). The authors wish to acknowledge and thank Sandra Ramirez Cherbuy for the illustration of the graphical abstract.",

year = "2021",

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doi = "10.1021/acscatal.0c05133",

language = "English (US)",

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T1 - Highly Selective and Stable Production of Aromatics via High-Pressure Methanol Conversion

AU - Shoinkhorova, Tuiana

AU - Cordero-Lanzac, Tomás

AU - Ramirez, Adrian

AU - Chung, Sang-ho

AU - Dokania, Abhay

AU - Ruiz-Martinez, Javier

AU - Gascon, Jorge

N1 - KAUST Repository Item: Exported on 2021-03-08 Acknowledgements: Funding for this work was provided by King Abdullah University of Science and Technology (KAUST). The authors wish to acknowledge and thank Sandra Ramirez Cherbuy for the illustration of the graphical abstract.

PY - 2021/3/5

Y1 - 2021/3/5

N2 - In the current petrochemical market, the global demand for aromatics, especially benzene, toluene, and xylenes (BTXs), has increased sharply. The methanol-to-aromatic conversion (MTA) over ZSM-5 is among the most promising routes to satisfy this ever-growing demand. In this work, we show that highpressure operation during MTA leads to a large increase in aromatic selectivity while enhancing stability on-stream. Stable operation along with a very high selectivity to aromatics (up to 50%, with 20% BTXs) can be achieved on a commercial high-silica ZSM-5 (SiO2/Al2O3 = 280) at 400 °C, 30 bar total pressure, and WHSV = 8 h−1. The high partial pressure of primary olefins and the promoted methanol-induced hydrogen-transfer pathway result in an exponential increase in aromatization, while the high partial pressure of steam generated via dehydration of methanol leads to in situ coke removal and, therefore, to a much slower deactivation of the zeolite

AB - In the current petrochemical market, the global demand for aromatics, especially benzene, toluene, and xylenes (BTXs), has increased sharply. The methanol-to-aromatic conversion (MTA) over ZSM-5 is among the most promising routes to satisfy this ever-growing demand. In this work, we show that highpressure operation during MTA leads to a large increase in aromatic selectivity while enhancing stability on-stream. Stable operation along with a very high selectivity to aromatics (up to 50%, with 20% BTXs) can be achieved on a commercial high-silica ZSM-5 (SiO2/Al2O3 = 280) at 400 °C, 30 bar total pressure, and WHSV = 8 h−1. The high partial pressure of primary olefins and the promoted methanol-induced hydrogen-transfer pathway result in an exponential increase in aromatization, while the high partial pressure of steam generated via dehydration of methanol leads to in situ coke removal and, therefore, to a much slower deactivation of the zeolite

UR - http://hdl.handle.net/10754/667907

UR - https://pubs.acs.org/doi/10.1021/acscatal.0c05133

U2 - 10.1021/acscatal.0c05133

DO - 10.1021/acscatal.0c05133

M3 - Article

SN - 2155-5435

SP - 3602

EP - 3613

JO - ACS Catalysis

JF - ACS Catalysis

ER -

Highly Selective and Stable Production of Aromatics via High-Pressure Methanol Conversion

Abstract

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ASJC Scopus subject areas

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