کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4998691 | 1460401 | 2017 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Energy-saving design for regeneration process in large-scale CO2 capture using aqueous ammonia
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تکنولوژی و شیمی فرآیندی
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چکیده انگلیسی
This work evaluated the energy consumption of a large-scale post-combustion carbon capture (PCC) process for a 500 MW coal-fired power plant using aqueous ammonia solution. Firstly, the rate-based model in Aspen Plus was used to simulate the benchmarked process reported in the literature. In the benchmarked process, the ammonia stripper for the water wash loop and the carbon dioxide stripper in the carbon dioxide capture loop were designed relatively independently. The regeneration energy was reported to be 8.47Â GJ/ton-CO2 using the solvent with 0.23 CO2 lean loading in mol-CO2/mol-NH3. By optimizing the benchmarked process, the optimal lean loading is about 0.20 and the regeneration energy was reported to be 6.74Â GJ/ton-CO2. By integrating the ammonia stripper and carbon dioxide stripper, it was found that there is a limit on the regenerated lean loading of CO2 (â¼0.15) that allows the closing of mass balance; however, the regeneration energy could be reduced to 4.0Â GJ/ton-CO2.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 73, April 2017, Pages 12-19
Journal: Journal of the Taiwan Institute of Chemical Engineers - Volume 73, April 2017, Pages 12-19
نویسندگان
Liu Jialin, Wong David Shan-Hill, Jang Shi-Shang, Shen Yu-Ting,