کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6456587 1420410 2017 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
ReviewStability improvement of zeolite catalysts under hydrothermal conditions for their potential applications in biomass valorization and crude oil upgrading
ترجمه فارسی عنوان
بهبود بازدهی کاتالیزورهای زئولیت تحت شرایط هیدروترمال برای کاربرد بالقوه آنها در ارزش گذاری زیست توده و ارتقاء نفت خام
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


- Biomass and heavy oil deposits are prospective fuel sources for the future.
- Upgrading with modified hydrophobic zeolites would be a viable option.
- Incorporation of F, P, silanes and rare-metals is prioritized in recent times.
- H-BEA, H-ZSM-5 (MFI), and H-Y (FAU) zeolites have so far been evaluated.
- Further investigations are necessary to realize the full benefits.

The future applications of zeolite catalysts could target the valorization of abundant biomass resources and the widely distributed heavy oil deposits. However, a major challenge that can limit this possibility is the low stability of the zeolite systems under the hydrothermal conditions. The paper therefore reviewed classified literature on the different methods being considered for improving the stability properties of zeolite catalysts. Zeolite frameworks modification with fluoride ions, phosphorus, rare metals and silanes provides an opportunity for improving the stability during reactions like cracking, alkylation, isomerization, dehydration etc. All of these reactions are commonly encountered during biomass valorization in hydrothermal media and the heavy oil valorization via catalytic cracking and/or aquathermolysis. The paper thus tailored the progress made and identify the directions for further investigations.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Microporous and Mesoporous Materials - Volume 249, 1 September 2017, Pages 42-54
نویسندگان
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