Development of a Novel Super-active Ziegler-Natta Polyethylene Catalyst: Study on Structure, Performance and Application
- سال انتشار: 1403
- محل انتشار: ماهنامه بین المللی مهندسی، دوره: 37، شماره: 1
- کد COI اختصاصی: JR_IJE-37-1_002
- زبان مقاله: انگلیسی
- تعداد مشاهده: 287
نویسندگان
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
Department of Chemical Engineering, Arak Branch, Islamic Azad University, Arak, Iran
Department of Chemical Engineering, Faculty of Engineering, Arak University, Arak, Iran
چکیده
In this research, the synthesis process of a novel super-active catalyst, named SAC-۵۱۰ is investigated at experimental scale. The authors compared the analyzed data against those derived from a popular catalyst, Finix-۱۱۲, and several other available alternatives. The data indicated that SAC-۵۱۰ catalyst derived the optimal activity from its spherical particles. Titanium and other chemical elements were less uniformly distributed in SAC-۵۱۰ than in Finix-۱۱۲ samples, with the mean particle size being slightly larger than that found in Finix-۱۱۲. The pores’ dispersion and sizes in SAC-۵۱۰ were not as uniformly distributed as those in Finix-۱۱۲ catalyst. Lastly, both SAC-۵۱۰ and Finix-۱۱۲ catalysts were equally adaptable for use in high-density polyethylene pipes (grade ۱۰۰). Compared to other commercially available catalysts, the major advantages of SAC-۵۱۰ are the economical use of hydrogen and monomers, and low purging of its valuable gases during the polymerization process. The results obtained are as follows: the increase in oxidative induction time efficiency with SAC catalyst compared to Finix catalyst by ۵.۸%, activity by ۳۵.۷%, hydrogen responsibility by ۲۴.۳۹%, ۱-butene consumption by ۸.۳۸% and triethylaluminium consumption by ۲۷.۲۷%.کلیدواژه ها
Polyethylene pipes, Malvern, Super-active catalyst-۵۱۰, Ziegler-Natta catalystsاطلاعات بیشتر در مورد COI
COI مخفف عبارت CIVILICA Object Identifier به معنی شناسه سیویلیکا برای اسناد است. COI کدی است که مطابق محل انتشار، به مقالات کنفرانسها و ژورنالهای داخل کشور به هنگام نمایه سازی بر روی پایگاه استنادی سیویلیکا اختصاص می یابد.
کد COI به مفهوم کد ملی اسناد نمایه شده در سیویلیکا است و کدی یکتا و ثابت است و به همین دلیل همواره قابلیت استناد و پیگیری دارد.