کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
209251 461664 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Underground coal thermal treatment as a potential low-carbon energy source
ترجمه فارسی عنوان
درمان حرارتی ذغالسنگ زیرزمینی به عنوان منبع انرژی کم انرژی کربن
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• UCTT can produce a high-quality liquid product and gas mixture.
• Product yield at low temperatures, heating configuration and coal moisture content are key factors to UCTT’s feasibility.
• NERs and GHG emissions are in the range of those reported for in situ production of oil shale.

We evaluate a novel energy strategy, underground coal thermal treatment (UCTT); it involves slowly pyrolyzing coal in-situ, transforming it to a synthetic gas stream containing hydrogen and low molecular-weight hydrocarbons, liquid fuel and char. This evaluation assesses the life-cycle energy and greenhouse gas (GHG) impacts of UCTT for all process stages. It is based on experimental results at two scales, a simple heat-transfer model and literature results. The results show that UCTT can produce a high-quality liquid product and a gas mixture. UCTT's GHG emissions are in the range of those reported for in situ processing of oil shale. Net energy returns (NERs) of 0.48–4.7 are in the range reported oil sands (2.8) and oil shale (0.48–2.6). Product yield at low temperatures, heater temperature, the number of heaters and the moisture content of the coal are key factors in determining the feasibility of the UCTT process.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 144, April 2016, Pages 8–19
نویسندگان
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