首页 > 资料下载 > W.A.行政区燃烧后二氧化碳捕获和封存项目最终环境影响报告书第二卷-附录W.A. Parish Post-Combustion CO2 Capture and Sequestration Projec
W.A.行政区燃烧后二氧化碳捕获和封存项目最终环境影响报告书第二卷-附录W.A. Parish Post-Combustion CO2 Capture and Sequestration Projec W.A.行政区燃烧后二氧化碳捕获和封存项目最终环境影响报告书第二卷-附录W.A. Parish Post-Combustion CO2 Capture and Sequestration Projec

W.A.行政区燃烧后二氧化碳捕获和封存项目最终环境影响报告书第二卷-附录W.A. Parish Post-Combustion CO2 Capture and Sequestration Projec

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该计划中的捕集系统将建在NRG位于德克萨斯州汤普森镇附近的本德堡县农村地区占地4,880英亩的W.A.堂区工厂上。该电站包括四个以煤粉为燃料的大型发电机组，四个较小的天然气发电机组，以及一个2,430英亩的人工湖，用于冷却水。该项目将对其中一个以煤为燃料的机组(8号机组)进行改造，使其具有燃烧后的二氧化碳捕获系统，利用紧挨着机组的厂区内的可用空间。二氧化碳捕获系统将使用先进的胺基溶剂技术。项目演示期间还可能包括对其他胺基溶剂的测试。作为该项目的一部分，还将建设一个新的天然气热电联产厂，包括一个带有热回收蒸汽发生器(CT/HRSG)的燃烧涡轮。据估计，该热电联产工厂将产生相当于80兆瓦的电力，足以驱动压缩机和捕获系统的设备，将剩余的电力出售给电网。新燃气轮机排出的热废气将用于余热锅炉产生蒸汽，为溶剂再生过程提供热量。NRG计划在不分摊美国能源部成本的情况下继续建设天然气热电联产厂，并将于2013年开始运营。发电厂的初步运行将为与教区PCCS项目无关的其他NRG需求提供峰值电力。在晚些时候，可能是2015年，发电厂将为碳捕获设施提供所需的电力。

The proposed capture system would be constructed on NRG’s 4,880-acre W.A. Parish Plant in rural Fort Bend County near the small town of Thompsons, Texas. The plant site includes four large power generating units fueled with pulverized coal, four smaller natural gas-fired units, and a 2,430-acre manmade lake used for cooling water. The proposed project would retrofit one of the coal-fueled units (Unit 8) with a post-combustion CO2 capture system, using space available on the plant site immediately adjacent to the unit. The CO2 capture system would use an advanced amine-based solvent technology. The project demonstration period may also include tests of other amine-based solvents. A new natural gas-fired cogeneration plant comprised of a combustion turbine with a heat recovery steam generator (CT/HRSG) would also be constructed as part of this project. The cogeneration plant would produce an estimated 80 MW equivalent of electric power which would be sufficient to drive the compressors and equipment of the capturesystem leaving excess power available for saleto the grid. The hot exhaust gases from the new combustion turbine would be used to produce steam in the HRSG, providing heat for the solvent regeneration process. NRG plans to proceed with construction of the natural gas-fired cogeneration plant without DOE cost sharing and would begin operation in 2013. The initial operation of the electric generating plant would provide peaking power for other NRG needs unrelated to the Parish PCCS Project. At a later date, possibly 2015, the electric generating plant would provide the power needed for the carbon capture facility.

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