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Lanthanum Hierarchical SAPO-34: Synthesis, Characterization, and Catalysis Evaluation in Methanol to Propylene Process

التفاصيل البيبلوغرافية
العنوان: Lanthanum Hierarchical SAPO-34: Synthesis, Characterization, and Catalysis Evaluation in Methanol to Propylene Process
المؤلفون: Masoumeh Ghalbi Ahangary, Parviz Rashidi Ranjbar
المصدر: Iranian Journal of Chemistry & Chemical Engineering, Vol 39, Iss 5, Pp 71-78 (2020)
بيانات النشر: Iranian Institute of Research and Development in Chemical Industries (IRDCI)-ACECR, 2020.
سنة النشر: 2020
المجموعة: LCC:Chemical engineering
LCC:Chemistry
مصطلحات موضوعية: hierarchical sapo-34, methanol to propylene, metal impregnated sapo-34, lanthanium oxide, Chemical engineering, TP155-156, Chemistry, QD1-999
الوصف: Hierarchical SAPO-34 molecular sieve has been synthesized with n-propylamine as a mesoscale template and used to prepare La-Hierarchical SAPO-34 by impregnation by Lanthanum nitrate and has been used in Methanol-to-Propylene (MTP) conversion process. La-H-SAPO-34 demonstrated higher activity and selectivity for propylene (48.9%) compared to a conventional SAPO-34 catalyst (28.7%) in a fixed-bed reactor under atmospheric pressure at 450 oC and WHSV of 1.0 h-1. High selectivity and longer catalytic lifetime (7 hours) of methanol to propylene conversion have been attributed to the reduction in the acidic character of active sites and the increasing mesopore volume. The catalyst has been characterized by XRD, FE-SEM, BET, NH3-TPD, and TGA techniques and compared with SAPO-34.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 1021-9986
Relation: http://www.ijcce.ac.ir/article_35974_dc8903a4e9e00929f3cf5ff43f9622aa.pdf; https://doaj.org/toc/1021-9986
DOI: 10.30492/ijcce.2019.35974
URL الوصول: https://doaj.org/article/6016cd7c60834f6f8a30025b105c9d26
رقم الأكسشن: edsdoj.6016cd7c60834f6f8a30025b105c9d26
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:10219986
DOI:10.30492/ijcce.2019.35974