کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1275467 1497564 2012 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bench-scale WGS membrane reactor for CO2 capture with co-production of H2
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Bench-scale WGS membrane reactor for CO2 capture with co-production of H2
چکیده انگلیسی

This study investigated the water-gas shift reaction in a bench-scale membrane reactor (M-WGS), where three supported Pd membranes of 44 cm in length and ca. 6 μm in thickness were used, reaching a total membrane surface area of 580.6 cm2. The WGS reaction was studied with the syngas mixture: 4.0% CO, 19.2% CO2, 15.4% H2O, 1.2% CH4 and 60.1% H2, under high temperature/pressure conditions: T = 673 K, pfeed = 20–35 bar(a), pperm = 15 bar(a), mimicking CO2 capture with co-production of H2 in a natural gas fired power plant. High reaction pressure and high permeation of Pd membranes allowed for near complete CO conversion and H2 recovery. Both the membranes and the membrane reactor demonstrated a long-term stability under the investigated conditions, indicating the potential of M-WGS to substitute conventional systems.


► The water-gas shift reaction (M-WGS) was examined in a bench-scale membrane reactor.
► Mimicking NGCC conditions for CO2 capture: T = 673 K, pfeed/pperm up to 35/25 bar(a).
► Near complete CO conversion and H2 recovery were achieved.
► A long-term stability both for the membranes and the membrane reactor.
► M-WGS has a great potential to substitute conventional systems.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Hydrogen Energy - Volume 37, Issue 5, March 2012, Pages 4139–4143
نویسندگان
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