Oxy-Combustion Process for CO2 Capture from Coal-Fired Power Plants: Engineering Case Studies and Engineering Feasibility Analysis
Oxy-Combustion Process for CO2 Capture from Coal-Fired Power Plants: Engineering Case Studies and Engineering Feasibility Analysis
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发表时间：
2006
期刊：
影响因子：
9
通讯作者：
F. Gautier;Fabienne Châtel-Pélage;R. Varagani;P. Pranda;D. Devault;H. Farzan;R. Schoff;J. Ciferno;A. Bose
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作者：
F. Gautier;Fabienne Châtel-Pélage;R. Varagani;P. Pranda;D. Devault;H. Farzan;R. Schoff;J. Ciferno;A. Bose
本文介绍了富氧燃烧（OC）技术，以捕获二氧化碳排放的煤粉（PC）电厂。以前的出版物沿着经济评估描述了对该技术进行的中试规模测试。该技术中试示范成功，与燃烧后捕集技术相比具有良好的经济性，工程可行性研究已经启动。详细的过程模拟和工程分析正在进行的550兆瓦净发电厂纳入超临界和超超临界蒸汽循环。空气分离装置（ASU）的设计、锅炉的设计和改造、二氧化碳压缩和净化装置（CO2装置）的开发正在进行中，详细内容沿着成本估算。目前，超临界情况的计算正在完成，超超临界情况的计算正在启动。结果将在几周内公布，并将在论文中提出。一项改造OC技术的工程可行性研究正在25 MWe现有PC装置上进行。功能分析已开始与过程中的热量和质量平衡在各种操作条件下，提供所需的新设备的条件和信息。没有发现任何阻碍改进该技术的因素。我们亦正进行详细的成本估算，以评估在考虑中的核电厂进行OC技术商业示范所需的成本。
This paper describes the Oxy-Combustion (OC) technology to capture CO2 emissions from pulverized coal (PC) fired power plants. Previous publications † described the pilot scale tests performed on the technology along with economic assessment. Upon successful pilot demonstration of the technology and favorable economics compared to post-combustion capture technology, engineering feasibility study has been launched. Detailed process simulations and engineering analysis are being performed on 550 MWe net power plant incorporating supercritical and ultra supercritical steam cycles. Air Separation Unit (ASU) design, boiler design and modifications, carbon dioxide compression and purification unit (CO2 unit) development are being carried out with fine details along with the cost estimations. Currently, calculations are being finalized for supercritical case and initiated for ultra supercritical case. Results will be available in few weeks and will be presented in the paper. An engineering feasibility study to retrofit OC technology is in progress on a 25 MWe existing PC unit. Functional analysis has begun with process heat and mass balances at various operating conditions, providing the conditions and information of new equipment required. No showstoppers were identified to retrofit the technology. Detailed cost estimation is also in progress to assess the cost required to perform a commercial demonstration of the OC technology on the plant being considered.