کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6636473 | 461134 | 2015 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Behaviour of tars on the filter in high temperature filtration of biomass-based gasification gas
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کلمات کلیدی
CHPSPAIGCCSNGPAHBtL - BTLSTP - PTSflame ionization detector - آشکارساز یونیزاسیون شعلهTar - تارCombined Heat and Power - ترکیب گرما و قدرتFID - درThermal conductivity - رسانندگی گرماییBiomass-to-Liquid - زیست توده به مایعFischer–Tropsch - فیشر تروپشHot gas filtration - فیلتر تصفیه داغPolyaromatic hydrocarbon - هیدروکربن Polyaromaticgas chromatograph - کروماتوگرافی گازSynthetic natural gas - گاز طبیعی مصنوعیBiomass gasification - گازسیون زیست تودهintegrated gasification combined cycle - گشتاور مجتمع یکپارچه
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Behaviour of tars in high temperature filtration was studied at atmospheric pressure in steam and air/steam gasification conditions. Wood pellets and bark pellets were used as feedstock and silica sand and dolomite (Myanit B) as bed materials. Experiments were carried out in a bench-scale bubbling fluidised-bed gasifier coupled with a hot gas filter unit. Interestingly, it was found that filter could act, in a sense, as a prereformer when it was operated at 800 °C. The total amount of tars in the gas was reduced on the filter in all tests regardless of the used feedstock, bed material or gasifying agent. Highest reduction, in the order of 50 wt% of total tars, was obtained in steam gasification tests when dolomite was used as bed material. It was concluded that the changes in tars are derived from thermal tar reactions due to long residence time at high temperature on the filter but also from catalytic reactions induced by the presence of unreacted biomass char and carry-over dolomite on the filter surface. Tar reduction on the high temperature filter could be beneficial for downstream units and improve their operability, especially the reformer where the lower tar level could reduce coking tendency on the catalyst.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 139, 1 January 2015, Pages 220-231
Journal: Fuel - Volume 139, 1 January 2015, Pages 220-231
نویسندگان
Sanna Tuomi, Esa Kurkela, Pekka Simell, Matti Reinikainen,