کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6476538 1425385 2017 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultra-microporous membrane separation using toluene to simulate tar-containing gases
ترجمه فارسی عنوان
جداسازی غشاء فوقالعاده با استفاده از تولوئن برای شبیه سازی گازهای حاوی قندها
کلمات کلیدی
جداسازی گاز، غشاء فوق العاده میکروپورها، تار،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

This study investigates the performance of ultra-microporous cobalt oxide silica membranes for processing simulated gas streams containing toluene as a model tar compound in gasification. The performance of the membranes was initially investigated for He (simulating H2), CO2, N2 and Ar in a range of temperatures. Subsequently, toluene was added to a gas mixture containing He and tested to simulate the effect of toluene as a tar compound in gasification. The membranes delivered molecular sieving features, showing activated transport as the permeation of the smaller molecular gas He increased with temperature whilst the permeation decreased for the other larger molecular gases. Prior to toluene exposure, He permeance increased by almost twofold from 3.6 × 10− 8 to 7.1 × 10− 8 mol m− 2 s− 1 Pa− 1 as the temperature was raised from 50 to 200 °C. Under a feed gas containing 0.24 mol% toluene, He permeance decreased by an average value of 17%. Upon regeneration of the membrane by heat, He permeance was not fully recovered, a clear indication of tar fouling. A toluene balance calculation showed toluene being retained by the membrane.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 161, 15 June 2017, Pages 259-264
نویسندگان
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