دورية أكاديمية
Lanthanum Hierarchical SAPO-34: Synthesis, Characterization, and Catalysis Evaluation in Methanol to Propylene Process
العنوان: | Lanthanum Hierarchical SAPO-34: Synthesis, Characterization, and Catalysis Evaluation in Methanol to Propylene Process |
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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 |
تدمد: | 10219986 |
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DOI: | 10.30492/ijcce.2019.35974 |