کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
53949 46990 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Post-plasma catalytic oxidative CO2 reforming of methane over Ni-based catalysts
ترجمه فارسی عنوان
ریزش دی اکسیداتیک کاتالیزوری پس از پلاسما متان بر روی کاتالیزورهای بر پایه نیکل
کلمات کلیدی
پلاسما، کاتالیزور نیکل، ریخته گری متان، همگام سازی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
چکیده انگلیسی


• An efficient route of post-plasma catalysis for syngas production was reported.
• The unique spark-shade plasma was combined with Ni/CeO2/Al2O3 catalyst.
• Syngas concentration of 86% with energy cost of 0.5 eV/molecule was achieved.
• Both CO and H2 selectivities arrived at nearly 100%.

To seek an efficient route for syngas production from oxidative CO2 reforming of methane (OCRM) via post-plasma catalytic technique, three routes were compared using spark-shade plasma (input power = 106 W, with F1 of 1.36 SLM at CH4:O2:CO2 = 1:0.6:0.7) and Ni/CeO2/Al2O3 catalyst (catalyst temperature = 800 °C, with or without F2 of 0.52 SLM CH4). Compared with Route 1 (plasma only, F1 only), XO2,XCH4,CH2+COXO2,XCH4,CH2+CO and H2/CO ratio of Route 2 (plasma + catalyst, F1 only) increased to 100%, 99%, 76% and 1.2, respectively; but XCO2XCO2 kept at about 35%, which was close to the thermodynamic-equilibrium values. In Route 3 (plasma + catalyst, F1 + F2), XCO2XCO2 increased dramatically to 67%, CH2+COCH2+CO and H2/CO ratio further increased to 86% and 1.5, respectively, though XCH4XCH4 decreased to 77%. Both SCO and SH2SH2 arrived at nearly 100%. Assuming that the plasma could supply the heat energy for the subsequent catalytic reaction at 800 °C, syngas energy cost as low as 0.5 eV/molecule and energy efficiency as high as 91% were achieved.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Catalysis Today - Volume 256, Part 1, 1 November 2015, Pages 96–101
نویسندگان
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