کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8110600 1522290 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Activity of chars and activated carbons for removal and decomposition of tar model compounds - A review
ترجمه فارسی عنوان
فعالیت عناصر و کربن فعال برای حذف و تجزیه ترکیبات تار مدل - بررسی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی های تجدید پذیر، توسعه پایدار و محیط زیست
چکیده انگلیسی
After a first section dedicated to the definition of char and tars, this work reviews a series of studies where model compounds were used to predict the behavior of real tars upon contact with char surface. The review includes research works focused on alkanes decomposition (methane, propane) and more traditional aromatic model tars. The overview of the results shows that the use of biomass char is effective in converting up to 100% of model tars in a gaseous stream, with coke, H2, and CO and CO2 as major products of cracking and reforming reactions. In particular, multi-ring aromatics such as naphthalene showed higher conversion rates. Tar conversion at 700-900 °C is favored by the presence of reforming agents (H2O, CO2), which also contribute in preserving the activity of char over time. Residual char properties that enhance the activity toward tar decomposition include a large surface area and a well-developed microporosity. Both the char properties and the process parameters need to be carefully optimized for the successful application of residual gasification char to producer gas cleaning, and further experiments on real producer gas are needed to implement char-based gas cleaning systems.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Renewable and Sustainable Energy Reviews - Volume 94, October 2018, Pages 1044-1056
نویسندگان
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