1-Hexene catalytic cracking to propylene using shape selective molecular sieve sapo-34 zeolite
Joint Authors
Nawaz, Zeeshan
Tang, Xiaoping
Cui, Yu
Wei, Fei
Source
The Arabian Journal for Science and Engineering. Section B, Engineering
Issue
Vol. 35, Issue 1B (30 Apr. 2010), pp.16-24, 9 p.
Publisher
King Fahd University of Petroleum and Minerals
Publication Date
2010-04-30
Country of Publication
Saudi Arabia
No. of Pages
9
Main Subjects
Abstract AR
العاملون في مجال التفسيرات للبيانات المتعلقة بالزلزالية الانعكاسية يعتمدون على برامجيات غاية في التعقيد لغرض تفسير هذه البيانات و لهذا الغرض فان هذا البحث يتعامل مع برنامج ريفلكس ٢٠٠٨ و هو برنامج بسيط التطبيق لتفسير بيانات الزلزالية الانعكاسية مع كفاءة لا تقل عن كفاءة البرامجيات المعروفة في هذا المجال تم استخدام بيانات مساري زلزاليين في حقل المنصورية النفطي حيث تم تحديد وجود صدوع عكسية بعد إجراء عمليات المعالجة و الفلترة حيث تحجز هذه الصدوع قمة طية المنصورية كمن غازي .
هذه الصدوع العكسية و التي تظهر في الطرف الجنوبي الغربي لطيه المنصورية تظهر كذلك في نطاق الطيات العالية حيث تعتبر صدوع انزلاقية جذبية تحدد طرفي الطية حيث تنشأ عن حركة احتكاكية على صخور القاعدة.
Abstract EN
-The catalytic cracking of 1-hexene was experimentally investigated over 100% pure SAPO-34 catalysts in order to explore the cracking reaction network and parametric characterization.
The prepared SAPO-34 zeolite catalyst was characterized by BET, SEM, XRD, and NH3-IR spectra techniques.
The critical focus was given to maximize the propylene selectivity and feed conversion.
The catalyst performance was observed in a microreactor, over the temperature range of 450–600oC at weight hourly space velocity 13.5 h-1.
Reaction pathway was quantified and rationalized in terms of β-scission, C-type carbenium ion mechanism.
It was observed that the shape selectivity of SAPO-34 small pore size was suitable for light olefins production and eliminates chances of bimolecular reactions.
Experimental data suggests that 100% SAPO-34, with a small pore diameter and weak external acid sites significantly promotes propylene yield and selectivity to 50.8 % and 86.5 %, respectively.
This yield and selectivity is the highest ever reported.
Both conversion and selectivity were strongly effected by time-on-stream due to catalyst deactivation.
The olefin's performance envelop of 1-hexene cracking reaction indicates that SAPO-34 can selectively produce propylene with higher total olefins at higher conversions.
American Psychological Association (APA)
Nawaz, Zeeshan& Tang, Xiaoping& Cui, Yu& Wei, Fei. 2010. 1-Hexene catalytic cracking to propylene using shape selective molecular sieve sapo-34 zeolite. The Arabian Journal for Science and Engineering. Section B, Engineering،Vol. 35, no. 1B, pp.16-24.
https://search.emarefa.net/detail/BIM-308443
Modern Language Association (MLA)
Nawaz, Zeeshan…[et al.]. 1-Hexene catalytic cracking to propylene using shape selective molecular sieve sapo-34 zeolite. The Arabian Journal for Science and Engineering. Section B, Engineering Vol. 35, no. 1B (Apr. 2010), pp.16-24.
https://search.emarefa.net/detail/BIM-308443
American Medical Association (AMA)
Nawaz, Zeeshan& Tang, Xiaoping& Cui, Yu& Wei, Fei. 1-Hexene catalytic cracking to propylene using shape selective molecular sieve sapo-34 zeolite. The Arabian Journal for Science and Engineering. Section B, Engineering. 2010. Vol. 35, no. 1B, pp.16-24.
https://search.emarefa.net/detail/BIM-308443
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 23-24
Record ID
BIM-308443