Economics of CO2 capture using the calcium cycle with a pressurized fluidized bed combustor
Economics of CO2 capture using the calcium cycle with a pressurized fluidized bed combustor
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DOI：
10.1021/ef0603378
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发表时间：
2007-03-01
期刊：
影响因子：
5.3
通讯作者：
Abanades, J. C.
中科院分区：
文献类型：
--
作者：
MacKenzie, A.;Granatstein, D. L.;Abanades, J. C.
在实验室规模的测试中，使用基于钙的化学循环系统的烟气CO2捕集已被证明比传统的基于胺的系统潜在地更具成本效益。使用基于Excel的经济模型预测这些初步测试的结果，以估计公用事业规模发电厂每公吨二氧化碳捕获30年的平准成本。假设加拿大西部的位置，提出了一个360兆瓦的加压流化床燃烧室（PFBC）的资本和操作估计的数量级。单独列出了煅烧炉、O-2工厂和创建钙基CO2化学捕获回路所需的相关设备的额外成本。这些成本在一系列电子表格中进行评估，工艺流程的影响以及资本，运营/维护和原料成本在敏感性分析中确定。发现CO2捕获的财务结果与基于胺的捕获系统相比是有利的。
Flue gas CO2 capture using a Ca-based chemical looping system has been shown to be potentially more cost-effective than traditional amine-based systems in bench-scale testing. The results of these initial tests are projected, using an Excel-based economic model, to estimate the 30-year levelized cost of CO2 capture per metric ton (t) for a utility-scale power plant. An order of magnitude capital and operating estimate for a 360 MW pressurized fluidized bed combustor (PFBC) is presented, assuming a western Canadian location. Additional costs for calciners, O-2 plant, and related equipment necessary to create a Ca-based CO2 chemical capture loop are presented separately. These costs are evaluated in a series of spreadsheets, and the impact of process flows, as well as capital, operating/maintenance, and feedstock costs are determined in a sensitivity analysis. The financial results for CO2 capture are found to compare favorably with amine-based capture systems.