کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5477344 1399217 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heat integration of alternative Ca-looping configurations for CO2 capture
موضوعات مرتبط
مهندسی و علوم پایه مهندسی انرژی انرژی (عمومی)
پیش نمایش صفحه اول مقاله
Heat integration of alternative Ca-looping configurations for CO2 capture
چکیده انگلیسی
The best option to overcome the energy penalty in Ca-looping is to take advantage of the surplus heat by external integration to produce additional power and increase net efficiency. As calciner represents the main energy consumption, another possibility is to internally use the surplus heat to preheat the solids entering this reactor. The objective of internal integration is to reduce the energy demand per captured tonne of CO2. It represents a reduction of the coal and oxygen needs and also a total decrease in the CO2 generation regarding the ordinary configuration. However, the amount of available heat for extra power generation by external integration, essential for the viability of this technology, is also reduced. This is the case of the configurations including a cyclonic preheater or a mixing seal valve. This study assess the energy penalty minimization that may be reached by external integration of these internal energy integration configurations. A methodological process has been applied to obtain a reduction of the energy penalty with respect to the ordinary configuration. This energy saving combined with the lower size of equipment and reduced capital cost would make the cyclonic preheater the most suitable configuration to improve the viability of this technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy - Volume 116, Part 1, 1 December 2016, Pages 956-962
نویسندگان
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