MTO with SAPO-34 in a Fixed-Bed reactor: deactivation profiles

Zapater, Diego (Universidad de Zaragoza) ; Lasobras, Javier ; Soler, Jaime (Universidad de Zaragoza) ; Herguido, Javier (Universidad de Zaragoza) ; Menéndez, Miguel (Universidad de Zaragoza)

Resumen: Methanol-to-olefins is a promising process that has attracted the attention of many research groups in the last years. Zeolites are the primary catalyst for this process, and SAPO-34 is one of the most used because of its high selectivity toward C2-C4 olefins. As a drawback, it deactivates quickly and forces the process to work alternately using reaction and regeneration cycles. The mechanism by which SAPO-34 deactivates is still on debate, and further research needs to be done. In this study, the evolution of the deactivation profile for an SAPO-34-based catalyst was studied in a fixed-bed reactor. To achieve that, the catalyst bed was extracted after each experiment and divided in sections of 2 cm. For each section, CO2 adsorption, thermogravimetric analysis, and ammonia temperature-programmed desorption were performed.

Idioma: Inglés

DOI: 10.1021/acs.iecr.1c02718

Año: 2021

Publicado en: Industrial and Engineering Chemistry Research 60, 45 (2021), 16162-16170
ISSN: 0888-5885

Factor impacto JCR: 4.326 (2021)

Categ. JCR: ENGINEERING, CHEMICAL rank: 52 / 143 = 0.364 (2021) - Q2 - T2

Factor impacto CITESCORE: 6.6 - Chemical Engineering (Q1) - Engineering (Q1)

Factor impacto SCIMAGO: 0.816 - Chemistry (miscellaneous) (Q1) - Chemical Engineering (miscellaneous) (Q1)

Financiación: info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-76533-R

Tipo y forma: Article (Published version)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)