کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
210748 461724 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Promoting effect of an aluminum emulsion on catalytic performance of Cu-based catalysts for methanol synthesis from syngas
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Promoting effect of an aluminum emulsion on catalytic performance of Cu-based catalysts for methanol synthesis from syngas
چکیده انگلیسی

Copper-based catalysts modified with aluminum precursors having different morphologies for methanol synthesis were prepared and the effect of the addition of aluminum emulsion on the characteristics of the catalyst was studied by using X-ray diffraction (XRD), temperature-programmed reduction (TPR) and differential thermal gravity (DTG). The experiment results show that the copper-based catalyst prepared by mixing a Cu–Zn precipitate with an amorphous aluminum emulsion prepared in advance by precipitating an aluminum salt with ammonia exhibits higher specific surface area and catalytic performance for methanol synthesis from synthesis gas. The catalysts thus prepared were found to have more (Cu,Zn)2CO3(OH)2 phase, from which more Cu/Zn sosoloid was produced during calcination. More sosoloid phase produced and stronger synergy between Cu and ZnO were verified to enhance the activity of the catalyst for methanol synthesis.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 91, Issue 7, July 2010, Pages 723–728
نویسندگان
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