کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4987247 | 1455146 | 2017 | 28 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Industrial grade 1-butene/isobutane separation using supported liquid membranes
ترجمه فارسی عنوان
جداسازی درجه صنعتی 1-بوتن / ایزوبوتان با استفاده از غشاهای مایع حمایت شده
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کلمات کلیدی
غشاهای مایع حمایت شده، 1-بوتن / ایزوبوتان، جداسازی گاز، عملکرد جداسازی، ثبات درازمدت،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
چکیده انگلیسی
Removal of olefin gaseous compounds such as ethylene, propylene, 1-butene and butadiene from paraffins is one of the most crucial issues in the petrochemical industries. The supported liquid membrane of silver nitrate solution supported in PVDF microfilter membrane was used for 1-butene/isobutane separation in the current study. The effects of silver nitrate concentration, trans-membrane pressure and gaseous feed stream's humidity were investigated on the membrane separation performance. According to the results, as the salt concentration increased from 0 to 3Â M, 1-butene permeance and 1-butene/isobutane selectivity were increased from 1.96Â ÃÂ 10â5 to 0.0607Â gpu and 0.0004 to 1380, respectively. In the liquid membrane containing aqueous solution of 1Â M silver nitrate, 1-butene/isobutane selectivity were found as 100 and 330 for the dry and humidified feed gas streams. Cu(NO3)2.3H2O salt was used simultaneously with the silver salt in the aqueous liquid membrane in order to increase the long-term stability of the membrane in addition to the feed stream humidification. As the both salts were used simultaneously in 1Â M concentration, 1-butene/isobutane selectivity decreased slightly from 439 to 399, while the 1-butene permeance increased from 0.0227 to 0.075Â gpu, during 4Â h continuous operation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Research and Design - Volume 123, July 2017, Pages 180-186
Journal: Chemical Engineering Research and Design - Volume 123, July 2017, Pages 180-186
نویسندگان
Omid Bakhtiari, Sepideh Hashemi Safaee,