首页> 外文OA文献 >Impact of stream impurities on compressor power requirements for CO2 pipeline transportation
【2h】

Impact of stream impurities on compressor power requirements for CO2 pipeline transportation

机译:流杂质对CO2管道输送压缩机功率要求的影响

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务,本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文,但由于OA文献来源多样且变更频繁,仍可能出现获取不到、文献不完整或与标题不符等情况,如果获取不到我们将提供退款服务。请知悉。

摘要

The economic viability of Carbon Capture and Sequestration (CCS) as a means of mitigating CO2 emissions is significantly dependent on the minimisation of costs associated with the compression and transportation of the captured CO2. This paper describes the development and application of a rigorous thermodynamic model to compute and compare power requirements for various multistage compression strategies for CO2 streams containing typical impurities originating from various capture technologies associated with industrial and power emission sectors. The compression options examined include conventional multistage integrally geared centrifugal compressors, supersonic shockwave compressors and multistage compression combined with subcritical liquefaction and pumping. The study shows that for all the compression options examined, the compression power reduces with the increase in the purity of the CO2 stream, while the inter-stage cooling duty is predicted to be significantly higher than the compression power demand. For CO2 streams carrying less than 5% impurities, multistage compression combined with liquefaction and subsequent pumping from ca 62 bar pressure can offer higher efficiency than conventional gas-phase compression. In the case of a raw/dehumidified oxy-fuel CO2 stream of ca 85% purity, subcritical liquefaction at 62 bar pressure is shown to increase the cooling duty by ca 50% as compared to pure CO2.
机译:碳捕集与封存(CCS)作为缓解CO2排放的手段的经济可行性在很大程度上取决于与压缩和运输所捕获的CO2相关的成本的最小化。本文介绍了一种严格的热力学模型的开发和应用,该模型可以计算和比较各种多级压缩策略的功率需求,这些策略适用于含有典型杂质的CO2物流的各种排放,这些杂质来自与工业和电力排放行业相关的各种捕集技术。检查的压缩选项包括常规的多级整体齿轮离心式压缩机,超音速冲击波压缩机以及结合了亚临界液化和泵送的多级压缩。研究表明,对于所有检查的压缩选项,压缩功率都会随着CO2物流纯度的增加而降低,而级间冷却负荷预计将大大高于压缩功率需求。对于杂质含量低于5%的CO2物流,多级压缩与液化相结合,随后从大约62 bar的压力中泵送,可以提供比传统气相压缩更高的效率。在纯度约为85%的原始/除湿的含氧燃料CO2物流的情况下,与纯CO2相比,在62 bar压力下的亚临界液化表明冷却能力提高了约50%。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号