• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >On the physics and chemistry of carbon dioxide capture and storage in terrestrial and marine environments.
【24h】

On the physics and chemistry of carbon dioxide capture and storage in terrestrial and marine environments.

机译：关于陆地和海洋环境中二氧化碳捕集和封存的物理和化学。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The production of CO2 from the oxidation of fossil-carbon over the past 200 years has resulted in the accumulation of CO2 in the atmosphere. In the atmosphere, CO2---like other greenhouse gases---slows the rate at which radiation is emitted from the Earth. By increasing the concentration of CO2 in the atmosphere, humanity is altering the Earth's radiation balance in a potentially dangerous way. Mitigating humanity's impact on the Earth's climate system requires transforming the global energy infrastructure to decrease anthropogenic emissions of CO 2. The body of work presented here covers a range of physical and chemical topics important for the mitigation of anthropogenic climate change through the capture and storage of CO2. This dissertation is focused primarily on addressing CO2 emissions from large stationary point-sources through CO2 capture and storage (CCS). A portion of the work, however, is aimed at addressing the long tail of the CO2 point-sources distribution by removing CO2 directly from the atmosphere. The entire CCS supply chain from the thermodynamic limit of the work required to capture CO 2 from power-plants to the long-term chemical and physical evolution of CO2 that has been injected into geologic repositories is evaluated with the use numerical models as well as thermodynamic and energetic calculations. In addition, a method to engineer the carbon cycle as an approach to address the long tail of the CO2-point-source distribution was developed. In all five of the chapters, the study of energetics plays an important role. Chapter 2 applies thermodynamics to derive an analytic relationship for the CCS energy penalty, and several valuable insights are ascertained from that relationship. The central insight of chapter 3---that a geologic formation's ability to dissipate induced pressure is often the limiting resource of CO 2 storage---derives from energetic models of compressive flow in porous media. The primary contribution of chapter 4 is the notion that in a certain thermodynamic phase space, liquid CO2 is denser than seawater, and thus it can be gravitationally trapped in deepsea sediments. Chapter 5 extends chapter 4's analysis of state properties to a larger pressure and temperature range. Finally, chapter 6 describes the energetics of accelerating chemical weathering with electrochemistry.
机译：在过去的200年中，化石碳氧化产生的二氧化碳导致大气中二氧化碳的积累。与其他温室气体一样，在大气中，二氧化碳（CO2）会降低地球辐射的速度。通过增加大气中二氧化碳的浓度，人类正在以潜在危险的方式改变地球的辐射平衡。减轻人类对地球气候系统的影响，需要改变全球能源基础设施，以减少人为排放的二氧化碳。2本文介绍的工作涵盖了一系列物理和化学主题，这些主题对于通过捕获和储存人类气候变化具有重要意义。二氧化碳本文主要研究通过二氧化碳捕集与封存（CCS）解决大型固定点源的二氧化碳排放问题。但是，部分工作旨在通过直接从大气中去除CO2来解决CO2点源分布的长尾问题。使用数值模型和热力学评估了整个CCS供应链，从从电厂捕获CO 2所需工作的热力学极限到注入地质库的CO 2的长期化学和物理演化，和精力充沛的计算。此外，还开发了一种工程化碳循环的方法，以解决二氧化碳点源分布的长尾巴问题。在所有这五章中，对能量学的研究都起着重要的作用。第2章应用热力学来推导CCS能量损失的解析关系，并从该关系中确定了一些有价值的见解。第3章的主要见解-地质层消散诱发压力的能力通常是CO 2储存的限制资源-来自多孔介质中压缩流的高能模型。第四章的主要贡献是，在一定的热力学相空间中，液态CO2比海水浓，因此可以将其重力吸附在深海沉积物中。第5章将第4章的状态属性分析扩展到更大的压力和温度范围。最后，第6章介绍了利用电化学促进化学风化的能量学。

著录项

  • 作者

    House, Kurt Zenz.;

  • 作者单位

    Harvard University.;

  • 授予单位 Harvard University.;
  • 学科 Geology.
  • 学位 Ph.D.
  • 年度 2009
  • 页码 224 p.
  • 总页数 224
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 地质学;
  • 关键词

  • 入库时间 2022-08-17 11:38:25

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

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