• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguidePlumX LibguideSubmit an Item

    Statistics

    Display statistics

    Quenching the deactivation in the methanol-to-olefins reaction by using tandem fixed-beds of ZSM-5 and SAPO-18 catalysts

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Thumbnail
    Name:
    Quenching-quenching.pdf
    Size:
    448.4Kb
    Format:
    PDF
    Description:
    Accepted manuscript
    Download
    Type
    Article
    Authors
    Valecillos, José
    Tabernilla, Zuria
    Epelde, Eva
    Sastre, Enrique
    Aguayo, Andres
    Castaño, Pedro cc
    KAUST Department
    Physical Science and Engineering (PSE) Division
    Date
    2020-07-06
    Online Publication Date
    2020-07-06
    Print Publication Date
    2020-08-05
    Permanent link to this record
    http://hdl.handle.net/10754/664166
    
    Metadata
    Show full item record
    Abstract
    We proved that the disposition of tandem fixed-beds of ZSM-5 with SAPO-18 catalysts could decrease the deactivation of the second catalytic bed during the methanol-to-olefins (MTO) reaction. For this purpose, we prepared two catalysts based on ZSM-5 zeolite and SAPO-18 zeotype; characterized them using XPS, XRD, 29Si NMR, N2 physisorption, NH3-TPD and FTIR; tested them individually, in mixed or tandem forms using a fixed-bed reactor or in-situ reactors monitored with UV-vis or FTIR spectroscopies; and characterized the catalyst during the reaction or after it. The catalytic beds (mixed or tandem) did not offer any significant enhancement or synergetic effect in product selectivity. However, the catalytic lifetime of the second bed in the tandem catalytic beds (particularly if that is made up of SAPO-18 catalyst) was prolonged because this bed receives less oxygenates (methanol and dimethyl ether) and more water, which slows down the deactivation of the second catalytic bed.
    Citation
    Valecillos, J., Tabernilla, Z., Epelde, E., Sastre, E., Aguayo, A., & Castaño, P. (2020). Quenching the deactivation in the methanol-to-olefins reaction by using tandem fixed-beds of ZSM-5 and SAPO-18 catalysts. Industrial & Engineering Chemistry Research. doi:10.1021/acs.iecr.0c01616
    Sponsors
    This work was possible thanks to the financial support of the Ministry of Economy, Industry and Competitiveness of the Spanish Government (Project CTQ2016-79646-P, co-founded with ERDF funds) and the Basque Government (Project IT748-13, IT912- 16). J.V. is thankful for his fellowship granted by the Ministry of Economy, Industry and Competitiveness of the Spanish Government (BES-2014-069980). The authors are thankful for technical and human support provided by IZO-SGI SGIker of UPV/EHU and European funding (ERDF and ESF).
    Publisher
    American Chemical Society (ACS)
    Journal
    Industrial & Engineering Chemistry Research
    DOI
    10.1021/acs.iecr.0c01616
    Additional Links
    https://pubs.acs.org/doi/10.1021/acs.iecr.0c01616
    ae974a485f413a2113503eed53cd6c53
    10.1021/acs.iecr.0c01616
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division

    entitlement

     
    DSpace software copyright © 2002-2021  DuraSpace
    Quick Guide | Contact Us | Send Feedback
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.