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首页> 外文会议>International Conference on Greenhouse Gas Control Technologies >ASSESSMENT OF CO_2 CAPTURE AND STORAGE FROM THERMAL POWER PLANTS IN ARGENTINA
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ASSESSMENT OF CO_2 CAPTURE AND STORAGE FROM THERMAL POWER PLANTS IN ARGENTINA

机译：评估阿根廷火热电厂的CO_2捕获和储存

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A study was undertaken to explore two options of CO_2 capture from natural gas combined cycles (NGCC) in Argentina. Natural gas is the predominant fuel for thermal power generation in the country and NGCC has been the choice for new generating units, particularly after the liberalization of the electricity sector in 1992. A high level assessment on sources to sinks matching was done taking into account the technology type, location, emissions and vintage of large stationary CO_2 sources and the characteristics of the local sedimentary basins. Based on the proximity of thermal power plants to geologic reservoirs with potential for sequestering large volumes of CO_2, a NGCC was selected as reference plant for a case study concerning the conceptual design of post and pre-combustion capture facilities. To the best of our knowledge this is the first assessment undertaken in Argentina on CO_2 capture from thermal power plants. We have focused on capture since it is the main contribution to the abatement cost. The same hourly flow rate of natural gas was employed to design the associated post and pre-combustion facilities using today's best available technology. A monoethanolamine process was selected for post-combustion capture and a steam methane reformer coupled with a water-gas shift reactor for hydrogen generation in the pre-combustion facility. An extensive survey of published data and models concerning physical equilibria, kinetics and heat transfer of the processes involved was conducted. We used the Aspen Plus process simulator and the results were validated in regard to the reviewed literature. The installed cost of the post-combustion capture is dominated by the cost of the absorption columns and the blower that moves the flue gas from the NGCC to the recovery unit while the steam methane reformer dominates the cost of the pre-combustion unit. Total capital investment for the pre-combustion unit was more than twice that of the post-combustion unit.
机译：采取了一项研究，探讨了阿根廷的天然气联合循环（NGCC）的两种CO_2捕获选择。天然气是国家热能发电的主要燃料，NGCC一直是新的发电机组的选择，特别是在1992年在电力行业自由化之后。考虑到汇率汇率的资源高水平评估大型固定式CO_2来源的技术类型，地点，排放和葡萄收获园林沉积盆地的特点。基于热电厂对具有抵消量大量CO_2的电位的地质储存的基础，选择NGCC作为参考工厂，以便研究岗位和预燃烧捕获设施的概念设计。据我们所知，这是阿根廷在热电厂捕获的Argentina捕获的第一次评估。我们专注于捕获，因为这是对减排成本的主要贡献。使用当今最好的技术设计天然气的每小时流量流速，设计了使用当今最佳可用技术的相关岗位和预燃烧设备。选择单乙醇胺过程，用于燃烧后捕获和蒸汽甲烷重整器，其与燃烧装置中的氢气发生水 - 气体移位反应器。对涉及的流程，动力学和传热的公布数据和模型进行了广泛的调查。我们使用了Aspen Plus流程模拟器，并在审查的文献方面验证了结果。后燃烧后捕获的安装成本是由吸收塔的成本和鼓风机的支配，当蒸汽甲烷重整器主导预燃烧单元的成本中，将烟道气从NGCC移动到回收单元。预燃烧单位的总资本投资超过燃烧后单元的两倍多。

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