119672 20230519145544.0 doi 10.1021/acs.iecr.1c02718 sideral 126515 ART-2021-126515 eng Zapater, Diego Universidad de Zaragoza MTO with SAPO-34 in a Fixed-Bed reactor: deactivation profiles 2021 Access copy available to the general public Unrestricted 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. info:eu-repo/grantAgreement/ES/MINECO/CTQ2016-76533-R info:eu-repo/semantics/openAccess by http://creativecommons.org/licenses/by/3.0/es/ 4.326 2021 ENGINEERING, CHEMICAL 52 / 143 = 0.364 2021 Q2 T2 0.816 2021 Chemistry (miscellaneous) 2021 Q1 Chemical Engineering (miscellaneous) 2021 Q1 6.6 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lasobras, Javier (orcid)0000-0002-7488-6196 Soler, Jaime Universidad de Zaragoza (orcid)0000-0001-9022-2835 Herguido, Javier Universidad de Zaragoza (orcid)0000-0003-1940-9597 Menéndez, Miguel Universidad de Zaragoza (orcid)0000-0002-2494-102X 5005 555 Universidad de Zaragoza Dpto. Ing.Quím.Tecnol.Med.Amb. Área Ingeniería Química 60, 45 (2021), 16162-16170 Ind. eng. chem. res. Industrial and Engineering Chemistry Research 0888-5885 3371495 http://zaguan.unizar.es/record/119672/files/texto_completo.pdf Versión publicada 2983452 http://zaguan.unizar.es/record/119672/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:119672 articulos driver 2023-05-18-15:42:47 ARTICLE